謝國華，武漢大學(xué)化學(xué)與分子科學(xué)學(xué)院副教授，有機(jī)/高分子光電功能材料湖北省重點(diǎn)實(shí)驗(yàn)室副研究員。

教育及工作經(jīng)歷：

2008.09-2011.06，吉林大學(xué)電子科學(xué)與工程學(xué)院，集成光電子學(xué)國家重點(diǎn)聯(lián)合實(shí)驗(yàn)室，微電子學(xué)與固體電子學(xué)專業(yè)，理學(xué)博士學(xué)位

2006.09-2008.06，吉林大學(xué)電子科學(xué)與工程學(xué)院，集成光電子學(xué)國家重點(diǎn)聯(lián)合實(shí)驗(yàn)室，微電子學(xué)與固體電子學(xué)專業(yè)，理學(xué)碩士學(xué)位

2002.09-2006.06，吉林大學(xué)電子科學(xué)與工程學(xué)院，電子科學(xué)與技術(shù)專業(yè)，工學(xué)學(xué)士學(xué)位

2015.01-至今，武漢大學(xué)化學(xué)與分子科學(xué)學(xué)院，湖北省有機(jī)/高分子光電功能材料重點(diǎn)實(shí)驗(yàn)室 (副研究員)

2013.01-2015.01，Organic Semiconductor Centre,University of St Andrews, UK (Research Fellow)

2012.01-2012.12，Institut für Angewandte Photophysik, Technische Universitaet Dresden, Germany & Fraunhofer COMEDD, Dresden, Germany,(COMEDD was independent from July 1st 2012) (洪堡學(xué)者)

2011.08-2011.12，F(xiàn)raunhofer-Institute for Photonic Microsystems (COMEDD is one of its departments.), Dresden (洪堡學(xué)者)

學(xué)術(shù)兼職： 

作為以下雜志的審稿人:

Nature Photonics, Nature Communications, Applied Physics Letters, Journal of Applied Physics, RSC Advance, Nanotechnology, Semiconductor Science and Technology, Journal of Physics D-Applied Physics, Physica Status Solidi A, …

主講課程:

研究生課程：《有機(jī)光電功能材料》2015

招生情況：

歡迎有材料、化學(xué)、物理、電子、光學(xué)等學(xué)科背景，以及對(duì)交叉學(xué)科研究感興趣的同學(xué)加入我們的團(tuán)隊(duì)。

實(shí)驗(yàn)環(huán)境和設(shè)備

http://www.escience.cn/people/xieguohua/index.html#

研究領(lǐng)域:

有機(jī)半導(dǎo)體，有機(jī)（光）電子材料和器件

承擔(dān)科研項(xiàng)目情況：

1、日本-亞洲青少年科技交流計(jì)劃 （櫻花科技計(jì)劃），2016，角色：負(fù)責(zé)人。

2、國家重點(diǎn)研發(fā)計(jì)劃，2016YFB0401002，熱活化延遲熒光機(jī)制的有機(jī)發(fā)光材料設(shè)計(jì)與制備，2016/07-2020/06，經(jīng)費(fèi)：650萬元，角色：子課題負(fù)責(zé)人。

3、國家自然科學(xué)基金面上項(xiàng)目，61575146，N型電學(xué)摻雜劑作用機(jī)理及其在有機(jī)光電器件中的應(yīng)用研究，2016/01-2019/12，經(jīng)費(fèi)：76.8萬元，角色：項(xiàng)目負(fù)責(zé)人。

4、英國工程與自然科學(xué)研究理事會(huì)(EPSRC)，EP/J01771X/1，Challenging the Limits of Photonics: structured light，2012/06-2017/05，經(jīng)費(fèi)：4.45百萬英鎊，角色：前期工作主要完成人之一。

5、2012年德國洪堡基金會(huì)博士后研究基金，有機(jī)電致發(fā)光器件的穩(wěn)定性研究，2012/01-2012/12，角色：負(fù)責(zé)人。

6、國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃（973項(xiàng)目），2010CB327701，硅上有機(jī)微顯示器件高品質(zhì)化及其物理研究，2010/01-2014/10，經(jīng)費(fèi)：750萬元，已結(jié)題（優(yōu)秀），角色：前期工作主要完成人之一。

7、 國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃（973項(xiàng)目），2003CB314703，硅上有機(jī)發(fā)光微顯示及其物理研究，2003/12-2008/08， 經(jīng)費(fèi)：300萬元、已結(jié)題（優(yōu)秀），角色：后期工作主要完成人之一。

主要研究成果：

1.(a) 研究適用于濕法制備的新型OLED材料和器件，比如聚合物和低聚物，熱激活延遲熒光材料及其相應(yīng)器件。

(b) 研究應(yīng)用于有機(jī)光伏器件、有機(jī)光電探測器、鈣鈦礦電池和發(fā)光二極管的新型載流子注入和傳輸材料和器件結(jié)構(gòu)。

2.(a) 研究有機(jī)發(fā)光器件（OLED、PLED和Organic Laser）的空間干涉特性。采用基于納米壓印技術(shù)指標(biāo)的亞波長周期的光柵結(jié)構(gòu)調(diào)制光的空間相干特性以應(yīng)用于生物醫(yī)學(xué)治療和傳感。

(b) 搭建了世界上第一套探測有機(jī)發(fā)光器件空間相干長度的系統(tǒng)。

(c) 將OLED與玻璃基底金屬光柵集成，實(shí)現(xiàn)寬譜的部分相干光

(d) 利用光柵結(jié)構(gòu)、微腔結(jié)構(gòu)、機(jī)械摩擦等形式實(shí)現(xiàn)具有一定偏振特性的OLED。

(e) 研究可穿戴的OLED與聚合物光電探測器的集成技術(shù)以應(yīng)用于生物醫(yī)學(xué)傳感和治療。

(f) 研究溶液法制備基于熱激活延遲熒光（TADF）特性的小分子OLED、深藍(lán)光OLED和深紅光、窄發(fā)射光譜。實(shí)現(xiàn)了首個(gè)具有離子型、兼容電化學(xué)發(fā)光的非摻雜型TADF OLED。

3.(a) 在德國洪堡基金會(huì)資助下，研究OLED的熱學(xué)穩(wěn)定性，實(shí)現(xiàn)了可在100oC溫度下工作的器件。

(b) 基于電學(xué)摻雜技術(shù)，首次實(shí)現(xiàn)了基于有機(jī)隧穿結(jié)的 P-I-N-P 型頂發(fā)射OLED，1000 cd/m2亮度下的壽命達(dá)到超長的50萬小時(shí)。

4.(a) 研究有機(jī)半導(dǎo)體的電學(xué)摻雜技術(shù)和物理。

(b) “973”項(xiàng)目課題 2003CB314703（硅上有機(jī)發(fā)光微顯示器件及其物理研究）后期工作主要完成人之一和2010CB327701（硅上有機(jī)微顯示器高品質(zhì)話及其物理研究）前期工作主要完成人之一，上述課題均以“優(yōu)秀”結(jié)題。

(c) 于2008年夏天成功研制了我國第一款自主研發(fā)的QVGA格式OLED微顯示器(0.52英寸對(duì)角線)。

5. 研究低驅(qū)動(dòng)電壓和高發(fā)光效率的OLED與中小尺寸有源顯示襯底的集成技術(shù)。與韓國首爾大學(xué)Prof. Seung-Ki Joo 課題組共同研制基于p-溝道低溫多晶硅襯底的底發(fā)射型有源顯示OLED（2英寸對(duì)角線）。

6. 研究基于晶圓廠標(biāo)準(zhǔn)CMOS工藝的全彩色微顯示器硅基襯底與頂發(fā)射白光OLED的集成技術(shù)。首次利用與下一代CMOS金屬互連技術(shù)兼容的銅襯底實(shí)現(xiàn)高效的寬譜頂發(fā)射白光OLED。

7. 與南京郵電大學(xué)黃維教授課題組和黑龍江大學(xué)許輝教授課題組共同開發(fā)非摻雜性深藍(lán)光OLED和基于膦氧主題的高效藍(lán)光和白光磷光OLED。

8. 研究新型的過渡金屬氧化物/金屬/過渡金屬氧化物多層透明電極在聚合物太陽能電池和OLED中的應(yīng)用。

9. 有機(jī)光電器件的光電性能模擬。

發(fā)表論文：

2016

1. Boosting reverse intersystem crossing by increasing donors in triarylboron/phenoxazine hybrids: TADF emitters for high-performance solution-processed OLEDs

Yuan Liu, Guohua Xie, Kailong Wu, Zhenghui Luo, Tao Zhou, Xuan Zeng, Jie Yu, Shaolong Gong, and Chuluo Yang.

Journal of Materials Chemistry C Volume: 4 Issue: 20 Pages: 4402-4407 Published: 2016

 DOI: 10.1039/c6tc01353h

2. Creating a thermally activated delayed fluorescence channel in a single polymer system to enhance exciton utilization efficiency for bluish-green electroluminescence

 Jiajia Luo, Guohua Xie, Shaolong Gong, Tianheng Chen, and Chuluo Yang.

Chemical Communications Volume: 52 Issue: 11 Pages: 2292-2295 Published: 2016

DOI: 10.1039/c5cc09797e

3. Deep-red iridium(III) complexes cyclometalated by phenanthridine derivatives for highly efficient solution-processed organic light-emitting diode

Bei Jiang, Yu Gu, Jingjing Qin, Xiaowen Ning, Shaolong Gong, Guohua Xie and Chuluo Yang

Journal of Materials Chemistry C Volume: 4 Issue: 16 Pages: 3492-3498 Published: 2016

DOI: 10.1039/c6tc00148c

4. Improved performance of inverted polymer solar cells by utilizing alcohol-soluble oligofluorenes as efficient cathode interlayers

Yuan Liu, Wenjun Zhang, Yang Zou, Guohua Xie, Junfeng Fang, Chuluo Yang

Organic Electronics Volume: 30 Pages: 182-190 Published: 2016

DOI: 10.1016/j.orgel.2015.12.025

5.  Measuring and structuring the spatial coherence length of organic light-emitting diodes

Guohua Xie, Mingzhou Chen, Michael Mazilu, Shuyu Zhang, A. K. Bansal, Kishan Dholakia, and Ifor D. W. Samuel.

Laser & Photonics Reviews Volume: 10 Issue: 1 Pages: 82-90 Published: JAN 2016

DOI: 10.1002/lpor.201500065

6. Multi-carbazole encapsulation as a simple strategy for the construction of solution-processed, non-doped thermally activated delayed fluorescence emitters

Jiajia Luo, Shaolong Gong, Yu Gu, Tianheng Chen, Yifan Li, Cheng Zhong, Guohua Xie, and Chuluo Yang.

Journal of Materials Chemistry C Volume: 4 Issue: 13 Pages: 2442-2446 Published: 2016

DOI: 10.1039/c6tc00418k

7. Rational utilization of intramolecular and intermolecular hydrogen bonds to achieve desirable electron transporting materials with high mobility and high triplet energy

Xiaojun Yin, Dongcheng Chen, Qiming Peng, Yepeng Xiang, Guohua Xie, Zece Zhu, Cheng Zhong, Feng Li, Shijian Su, and Chuluo Yang.

Journal of Materials Chemistry C Volume: 4 Issue: 7 Pages: 1482-1489 Published: 2016

DOI: 10.1039/c5tc04198h

8. Simple pyridine hydrochlorides as bifunctional electron injection and transport materials for high-performance all-solution-processed organic light emitting diodes

Xiaojun Yin, Guohua Xie, Tao Zhou, Yepeng Xiang, Kailong Wu, Jingui Qin and Chuluo Yang.

Journal of Materials Chemistry C Volume: 4 Issue: 26 Pages: 6224-6229 Published: 2016

DOI: 10.1039/c6tc01647b

9. Solution-Processable Silicon Phthalocyanines in Electroluminescent and Photovoltaic Devices

Eli Zysman-Colman, Sanjay Sanatan Ghosh, Guohua Xie, Shinto Varghese, Mithun Chowdhury, Nidhi Sharma, David B. Cordes, Alexandra M. Z. Slawin, and Ifor Samuel.

Acs Applied Materials & Interfaces Volume: 8 Issue: 14 Pages: 9247-9253 Published: APR 13 2016

DOI: 10.1021/acsami.5b12408

10. The end-capped group effect on dithienosilole trimer based small molecules for efficient organic photovoltaics

Wei Li, Wanyuan Deng, Kailong Wu, Guohua Xie, Chuluo Yang, Hongbin Wu* and Yong Cao

Journal of Materials Chemistry C Volume: 4 Issue: 10 Pages: 1972-1978 Published: 2016

DOI: 10.1039/c6tc00164e 

11. Controlling the emission efficiency of blue-green iridium(III) phosphorescent emitters and applications in solution-processed organic light-emitting diodes

Muhammad T Sajjad, Nidhi Sharma, Amlan K Pal, Kamrul Hasan, Guohua Xie, Lisa Kolln, Garry Hanan, Ifor Samuel, and Eli Zysman-Colman

Journal of Materials Chemistry C,

http://pubs.rsc.org/En/content/articlelanding/2016/tc/c6tc02909d#!divAbstract

12. Achieving a balance between small singlet-triplet energy splitting and high fluorescence radiative rate in quinoxaline-based orgage-red thermally activated delayed fluorescence emitter

Ling Yu, Zhongbin Wu, Guohua Xie, Cheng Zhong, Zece Zhu, Hengjiang Cong, Dongge Ma, and Chuluo Yang

Chemical Communications, (2016) DOI: 10.1039/C6CC05203G

http://pubs.rsc.org/En/content/articlelanding/2016/cc/c6cc05203g#!

13. Engineering the interconnection position of star-shaped D-π –A molecules based on triazine, spirofluorene and triphenylamine moieties for color tuning from deep blue to green

Yafei Wang*, Wanhui Liu, Jiyong Deng, Guohua Xie*, Yuanwei Liao, Zuoming Qu, Hua Tan, Yu Liu, and Weiguo Zhu

Chemistry - An Asian Journal, DOI: 10.1002/asia.201600727

http://onlinelibrary.wiley.com/wol1/doi/10.1002/asia.201600727/abstract

14. Influence of integratedalkyl-chain length on the mesogenic and photophysical properties of platinum-basedmetallomesogens and their application for polarized white OLEDs

YafeiWang*, Jiang Fan, Junwei Shi,Hongrui Qi, Etienne Baranoff, GuohuaXie*, Qingguo Li, Hua Tan, Yu Liu, and Weiguo Zhu*

Dyes and Pigments, (2016), 133 (2016) 238

http://www.sciencedirect.com/science/article/pii/S0143720816302145

15. Dendronized delayed fluorescence emitters for non-doped, solution-processed organic light-emitting diodes with high efficiency and low efficiency roll-off simultaneously: two parallel emissive channels

Yifan Li, Guohua Xie, Shaolong Gong, Kailong Wu, and Chuluo Yang

Chemical Science, 7 (2016) 5441

(Equal contribution)

http://pubs.rsc.org/en/content/articlelanding/2014/SC/C6SC00943C#!divAbstract

2015

16. A unique white electroluminescent one-dimensional europium(III) coordination polymer

Hui Xu*, Jianzhe Wang, Ying Wei, Guohua Xie*, Qin Xue, Zhaopeng Deng, and Wei Huang*.

Journal of Materials Chemistry C Volume: 3 Issue: 9 Pages: 1893-1903 Published: 2015

DOI: 10.1039/c4tc02604g

17. Benzobisoxazole-based electron transporting materials with high Tg and ambipolar property: high efficiency deep-red phosphorescent OLEDs

Xiaojun Yin, Tingke Zhang, Qiming Pei, Tao Zhou, Weixuan Zeng, Zece Zhu,Guohua Xie, Feng Li, Dongge Ma, and Chuoluo Yang.

Journal of Materials Chemistry C Volume: 3 Issue: 29 Pages: 7589-7596 Published: 2015

DOI: 10.1039/c5tc01353d / Author-provided URL : http://dx.doi.org/10.1039/C5TC01353D

18. Benzo[1,2-b:4,5-b ']dithiophene and Thieno[3,4-c]pyrrole-4,6-dione Based Donor-pi-Acceptor Conjugated Polymers for High Performance Solar Cells by Rational Structure Modulation

Shu Liu, Xichang Bao, Wei Li, Kailong Wu, Guohua Xie, Renqiang Yang, and Chuluo Yang.

Macromolecules Volume: 48 Issue: 9 Pages: 2948-2957 Published: MAY 12 2015

DOI: 10.1021/acs.macromol.5b00251

19. Formylated chloro-bridged iridium(III) dimers as OLED materials: opening up new possibilities

Michael Y. Wong, Guohua Xie, Clarisse Tourbillon, Martina Sandroni, David B. Cordes, Alexandra M. Z. Slawin, Ifor D. W. Samuel, and Eli Zysman-Colman.

Dalton Transactions Volume: 44 Issue: 18 Pages: 8419-8432 Published: 2015

DOI: 10.1039/c4dt03127j

20. Green Phosphorescence and Electroluminescence of Sulfur Pentafluoride-Functionalized Cationic Iridium(III) Complexes

Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, and Eli Zysman-Colman.

Inorganic Chemistry Volume: 54 Issue: 12 Pages: 5907-5914 Published: 2015

DOI: 10.1021/acs.inorgchem.5b00717

21. Light-Emitting Electrochemical Cells and Solution-Processed Organic Light-Emitting Diodes Using Small Molecule Organic Thermally Activated Delayed Fluorescence Emitters

Michael Y. Wong, Gordon J. Hedley, Guohua Xie, Lisa S. Kölln, Ifor D. W. Samuel, Antonio Pertegás, Henk J. Bolink, and Eli Zysman-Colman.

Chemistry of Materials Volume: 27 Issue: 19 Pages: 6535-6542 Published: OCT 13 2015

DOI: 10.1021/acs.chemmater.5b03245

22. Dithieno [3, 2-b: 2′, 3′-d] pyridin-5 (4 H)-one-based polymers with a bandgap up to 2.02 eV for high performance field-effect transistors and polymer solar cells with an open-circuit voltage up to 0.98 V and an efficiency up to 6.84%

Minghui Hao, Guoping Luo, Keli Shi, Guohua Xie, Kailong Wu, Hongbin Wu, Gui Yu, Yong Cao, and Chuluo Yang

Journal of Materials Chemistry A, 3 (2015) 20516

http://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/c5ta06111c

2014

23. Distinguishing triplet energy transfer and trap-assisted recombination in multi-color organic light-emitting diode with an ultrathin phosphorescent emissive layer

Qin Xue, Guohua Xie, Shouyin Liu, Ping Chen, Yi Zhao, and Shiyong Liu.

Journal of Applied Physics, 115 (2014) 114504

http://scitation.aip.org/content/aip/journal/jap/115/11/10.1063/1.4869056

24. Highly efficient and color-stable white organic light-emitting diode based on a novel blue phosphorescent host

Qingyang Wu, Yu Chen, Guohua Xie, Mingzhu Wu, Yukun Wu, Changhua Gou, Xiaoliang Guan, Zhensong Zhang, Shouzhen Yue, Pingrui Yan, Dalong Qu, Chong Cao, and Yi Zhao.

Synthetic Metals Volume: 187 Pages: 160-164 Published: JAN 2014

DOI: 10.1016/j.synthmet.2013.11.010

http://www.sciencedirect.com/science/article/pii/S0379677913005638

25. P-I-N-P top-emitting organic light-emitting diodes with MoOx as the electrical and optical modification layers

Guohua Xie*, Karsten Fehse, Karl Leo, and Malte Gather.

Physica Status Solidi a-Applications and Materials Science Volume: 211 Issue: 5 Pages: 1168-1174 Published: MAY 2014

DOI: 10.1002/pssa.201330527

http://onlinelibrary.wiley.com/doi/10.1002/pssa.201330527/abstract

26. Solution-Processible Brilliantly Luminescent Eu-III Complexes with Host-Featured Phosphine Oxide Ligands for Monochromic Red-Light-Emitting Diodes

Jianzhe Wang, Chunmiao Han, Guohua Xie*, Ying Wei, Qin Xue, Pengfei Yan, and Hui Xu.

Chemistry-a European Journal Volume: 20 Issue: 35 Pages: 11137-11148 Published: AUG 25 2014

DOI: 10.1002/chem.201403244

http://onlinelibrary.wiley.com/doi/10.1002/chem.201403244/abstract

2013

27. A bulky pyridinylfluorene-fuctionalizing approach to synthesize diarylfluorene-based bipolar host materials for efficient red, green, blue and white electrophosphorescent devices

Xiang-Hua Zhao, Zhen-Song Zhang, Yan Qian, Ming-Dong Yi, Ling-Hai Xie, Chao-Peng Hu, Guo-Hua Xie, Hui Xu, Chun-Miao Han, Yi Zhao, and Wei Huang.

Journal of Materials Chemistry C Volume: 1 Issue: 21 Pages: 3482-3490 Published: 2013

DOI: 10.1039/c3tc00875d

http://pubs.rsc.org/en/content/articlelanding/2013/tc/c3tc00875d

28. Color stable multilayer all-phosphor white organic light-emitting diodes with excellent color quality

Shiming Zhang, Shouzhen Yue, Qingyang Wu, Zhensong Zhang, Yu Chen, Xuehui Wang, Ziyang Liu, Guohua Xie, Qin Xue, Dalong Qu, Yi Zhao, and Shiyong Liu.

Organic Electronics Volume: 14 Issue: 8 Pages: 2014-2022 Published: AUG 2013

DOI: 10.1016/j.orgel.2013.04.039

http://www.sciencedirect.com/science/article/pii/S1566119913001985

29. Convergent modulation of singlet and triplet excited states of phosphine-oxide hosts through the management of molecular structure and functional-group linkages for low-voltage-driven electrophosphorescence

Chunmiao Han, Zhensong Zhang, Hui Xu, Guohua Xie, Jing Li, Yi Zhao, Zhaopeng Deng, Shiyong Liu and Pengfei Yan.

Chemistry - A European Journal Volume: 19 Issue: 1 Pages: 141-154 Published: 2013

DOI: 10.1002/chem.201203349 / Author-provided 

http://onlinelibrary.wiley.com/doi/10.1002/chem.201203349/full

30. Diarylfluorenes-based pi-stacked molecules: synthesis, X-ray crystallography, and supramolecular light-emitting devices

Yang Yang, Jian-Feng Zhao, Ran-Ran Liu, Jie-Wei Li, Ming-Dong Yi, Guo-Hua Xie, Yong-Zheng Chang, Cheng-Rong Yin, Xin-Hui Zhou, Yi Zhou, Yan Qian, and Wei Huang.

Tetrahedron Volume: 69 Issue: 30 Pages: 6317-6322 Published: JUL 29 2013

http://www.sciencedirect.com/science/article/pii/S004040201300330X

31. Enhanced efficiency in single-host white organic light-emitting diode by triplet exciton conversion

Qingyang Wu, Shiming Zhang, Shouzhen Yue, Zhensong Zhang, Guohua Xie, Yi Zhao and Shiyong Liu.

Journal of Luminescence Volume: 143 Pages: 108-112 Published: NOV 2013

http://www.sciencedirect.com/science/article/pii/S0022231313002482

32. High performance top-emitting and transparent white organic light-emitting diodes based on Al/Cu/TcTa transparent electrodes for active matrix displays and lighting applications

Zhensong Zhang, Pingrui Yan, Shouzhen Yue, Guohua Xie, Yu Chen, Qingyang Wu, Dalong Qu, Yi Zhao, and Shiyong Liu.

Organic Electronics Volume: 14 Issue: 6 Pages: 1452-1457 Published: JUN 2013

DOI: 10.1016/j.orgel.2013.03.007

http://www.sciencedirect.com/science/article/pii/S1566119913001122

33. Highly efficient all fluorescent white organic light-emitting devices made by sequential doping

Wu Qing-Yang; Xie Guo-Hua; Zhang Zhen-Song; et al.

Acta Physica Sinica Volume: 62 Issue: 19 Published: OCT 2013

DOI: 10.7498/aps.62.197204

34. Hybrid white organic light-emitting diodes with improved color stability and negligible efficiency roll-off based on blue fluorescence and yellow phosphorescence

Xuehui Wang, Shiming Zhang, Ziyang Liu, Shouzhen Yue, Zhensong Zhang, Yu Chen, Guohua Xie, Qin Xue, Yi Zhao, and Shiyong Liu.

Journal of Luminescence Volume: 137 Pages: 59-63 Published: 2013

http://www.sciencedirect.com/science/article/pii/S002223131200751X

35. Novel P-I-N-P top-emitting organic light-emitting diodes with enhanced efficiency and stability

Guohua Xie*, Karsten Fehse, Karl Leo, and Malte C. Gather.

Organic Electronics Volume: 14 Issue: 9 Pages: 2331-2340 Published: SEP 2013

DOI: 10.1016/j.orgel.2013.05.034

http://www.sciencedirect.com/science/article/pii/S1566119913002644

36. Stable and water-soluble CdTe@SiO2 composite nanospheres: Preparation, characterization and application in LED

Di Li, Xiaoming Liu, Guohua Xie, and Xueyan Liu.

Colloids and Surfaces a-Physicochemical and Engineering Aspects Volume: 424 Pages: 33-39 Published: 2013

DOI: 10.1016/j.colsurfa.2013.02.027

http://www.sciencedirect.com/science/article/pii/S0927775713001301

37. Understanding the influence of doping in efficient phosphorescent organic light-emitting diodes with an organic p-i-n homojunction

Changhun Yun, Guohua Xie, Caroline Murawski, Jonghee Lee, Fabian Ventsch, Karl Leo, and Malte C. Gather.

Organic Electronics Volume: 14 Issue: 7 Pages: 1695-1703 Published: JUL 2013

DOI: 10.1016/j.orgel.2013.04.018

http://www.sciencedirect.com/science/article/pii/S1566119913001778

38. White organic light-emitting diodes based on a yellow phosphorescence iridium complex and a high-efficiency blue fluorescence

Shiming Zhang, Ziyang Liu, Xuehui Wang, Shouzhen Yue, Zhensong Zhang, Qingyang Wu, Guohua Xie, Qin Xue, Yu Chen, Peng Wang, Runda Guo, Dalong Qu, Yi Zhao, and Shiyong Liu.

Thin Solid Films Volume: 537 Pages: 221-225 Published: JUN 30 2013

DOI: 10.1016/j.tsf.2013.04.036

http://www.sciencedirect.com/science/article/pii/S0040609013006524

2012

39. A 3-dimensional spiro-functionalized platinum(ii) complex to suppress intermolecular π-π And Pt⋯Pt supramolecular interactions for a high-performance electrophosphorescent device

Xiang-Hua Zhao, Guo-Hua Xie, Zheng-Dong Liu, Wei-Jie Li, Ming-dong Yi, Ling-Hai Xie, Chao-Peng Hu, Rui Zhu, Qiang Zhao, Yi Zhao, Jian-Feng Zhao, Yan Qian, and Wei Huang.

Chemical Communications Volume: 48 Issue: 32 Pages: 3854-3856 Published: 2012

DOI: 10.1039/c2cc30595j / Author-provided

http://pubs.rsc.org/en/Content/ArticleLanding/2012/CC/c2cc30595j 

40. A new OLED SPICE model for pixel circuit simulation in OLED-on-silicon microdisplay design

Bohua Zhao, Ran Huang, Jianhui Bu, Yinxue Lv, Yiqi Wang, Fei Ma, Guohua Xie, Zhensong Zhang, Huan Du, Jiajun Luo, Zhengsheng Han, and Yi Zhao.

Journal of Semiconductors Volume: 33 Issue: 7 Published: 2012

http://iopscience.iop.org/article/10.1088/1674-4926/33/7/075007?fromSearchPage=true

41. A new spiro[fluorene-9,9′-xanthene]-based host material possessing no conventional hole- and electron-transporting units for efficient and low voltage blue PHOLED via simple two-step synthesis

Yan Qian, Guohua Xie, Shufen Chen, Zhengdong Liu, Yeren Ni, Xinhui Zhou, Linghai Xie, Jing Liang, Yuezhi Zhao, Minghong Yi, Yi Zhao, Wei Wei, and Wei Huang.

Organic Electronics: physics, materials, applications Volume: 13 Issue: 11 Pages: 2741-2746 Published: 2012

http://www.sciencedirect.com/science/article/pii/S1566119912003758

42. All fluorescent and high color rendering index white organic light-emitting devices with improved color stability at high brightness

Shiming Zhang, Guohua Xie, Qin Xue, Zhensong Zhang, Li Zhao, Yang Luo, Shouzhen Yue, Yi Zhao, and Shiyong Liu

Thin Solid Films Volume: 520 Issue: 7 Pages: 2966-2970 Published: 2012

DOI: 10.1016/j.tsf.2011.10.148 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-84856394010&partnerID=40&md5= ...

43. Color stable and low driving voltage white organic light-emitting diodes with low efficiency roll-off achieved by selective hole transport buffer layers

Zhensong Zhang, Guohua Xie, Shouzhen Yue, Qingyang Wu, Yu Chen, Shiming Zhang, Li Zhao, Yang Luo, Yi Zhao and Shiyong Liu.

Organic Electronics: physics, materials, applications Volume: 13 Issue: 11 Pages: 2296-2300 Published: 2012

http://www.sciencedirect.com/science/article/pii/S1566119912003060

44. Controllably tuning excited-state energy in ternary hosts for ultralow-voltage-driven blue electrophosphorescence

Chunmiao Han, Zhensong Zhang, Hui Xu, Jing Li, Guohua Xie, Runfeng Xhen, Yi Zhao, and Wei Huang.

Angewandte Chemie - International Edition Volume: 51 Issue: 40 Pages: 10104-10108 Published: 2012

DOI: 10.1002/anie.201202702 / 

http://onlinelibrary.wiley.com/doi/10.1002/anie.201202702/abstract

45. Equivalent circuit model of top-emitting OLED for the designing of OLED-on-silicon microdisplay

S. X. Zong, C. N. Li, C. H. Lv, G. H. Xie, Y. Zhao, S. Y. Liu .

Advanced Materials Research, Vols. 383-390, pp. 7037-7042, 2012

46. Influence of molecular configuration and functional substituents on excited state energy levels in two naphthyl-based phosphine oxide hosts

Hui Xu, Guohua Xie, Chunmiao Han, Zhensong Zhang, Zhaopeng Deng, Yi Zhao, Pengfei Yan, and Shiyong Liu.

Organic Electronics: physics, materials, applications Volume: 13 Issue: 9 Pages: 1516-1525 Published: 2012

http://www.sciencedirect.com/science/article/pii/S1566119912001838

47. The realization of an SVGA OLED-on-silicon microdisplay driving circuit

Bohua Zhao, Ran Huang, Fei Ma, Guohua Xie, Zhengsong Zhang, Huan Du, Jiajun Luo, Yi Zhao.

Journal of Semiconductors Volume: 33 Issue: 3 Published: 2012

http://iopscience.iop.org/article/10.1088/1674-4926/33/3/035006/meta;jsessionid=8E61956D9A01B5908A777875D36CE297.c1.iopscience.cld.iop.org

48. Xanthene-based phosphine oxide host with the planar multi-insulating structure for efficient electrophosphorescence

Chunmiao Han, Guohua Xie, Hui Xu, Zhensong Zhang, Pengfei Yan, Yi Zhao, and Shiyong Liu.

Dyes and Pigments Volume: 94 Issue: 3 Pages: 561-569 Published: 2012

DOI: 10.1016/j.dyepig.2012.03.013 

http://www.sciencedirect.com/science/article/pii/S0143720812000691

2011

49. A new phosphine oxide host based on ortho-disubstituted dibenzofuran for efficient electrophosphorescence: Towards high triplet state excited levels and excellent thermal, morphological and efficiency stability

Chunmiao Han, Guohua Xie, Jing Li, Zhengsong Zhang, Hui Xu, Zhaopeng Deng, Yi Zhao, Pengfei Yan, and Shiyong Liu.

Chemistry - A European Journal Volume: 17 Issue: 32 Pages: 8947-8956 Published: 2011

DOI: 10.1002/chem.201100695 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79960782521&partnerID=40&md5= ...

http://onlinelibrary.wiley.com/doi/10.1002/chem.201100695/abstract

50. A single phosphine oxide host for high-efficiency white organic light-emitting diodes with extremely low operating voltages and reduced efficiency roll-off

Chunmiao Han, Guohua Xie, Hui Xu, Zhensong Zhang, Linghai Xie, Yi Zhao, Shiyong Liu, and Wei Huang.

Advanced Materials Volume: 23 Issue: 21 Pages: 2491-2496 Published: 2011

DOI: 10.1002/adma.201100322 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79957802230&partnerID=40&md5= ...

http://onlinelibrary.wiley.com/doi/10.1002/adma.201100322/abstract

51. Blue top-emitting organic light-emitting devices using Alq 3 as phase shift adjustment layer

Meng, Y.; Xie, W.; Xie, G.; et al.

Optoelectronics Letters Volume: 7 Issue: 2 Pages: 126-128 Published: 2011

Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79953146594&partnerID=40&md5= ...

52. Combination of heterojunction and mixed-host structures in one blue fluorescent organic light emitting diode to improve the power efficiency

Qin Xue, Shiming Zhang, Guohua Xie, Zhensong Zhang, Yang Luo, Li Zhao, Ping Chen, Yi Zhao, and Shiyong Liu.

Thin Solid Films Volume: 519 Issue: 11 Pages: 3816-3818 Published: 2011

DOI: 10.1016/j.tsf.2011.01.189 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79952734995&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S0040609011002392

53. Conjugated asymmetric donor-substituted 1,3,5-triazines: New host materials for blue phosphorescent organic light-emitting diodes

Zhong-Fu An, Run-Feng Chen, Jun Yin, Guo-Hua Xie, Hui-Fang Shi, Taiju Tsuboi, and Wei Huang.

Chemistry - A European Journal Volume: 17 Issue: 39 Pages: 10871-10878 Published: 2011

DOI: 10.1002/chem.201101118 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-80052838719&partnerID=40&md5= ...

http://onlinelibrary.wiley.com/doi/10.1002/chem.201101118/abstract

54. Efficient fluorescent white organic light-emitting devices based on a ultrathin 5,6,11,12-tetraphenylnaphthacene layer

Qin Xue, Shiming Zhang, Guohua Xie, Zhensong Zhang, Li Zhao, Yang Luo, Ping Chen, Yi Zhao, and Shiyong Liu.

Solid-State Electronics Volume: 57 Issue: 1 Pages: 35-38 Published: 2011

DOI: 10.1016/j.sse.2010.11.020 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79951678244&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S0038110110004065

55. Efficient white organic light-emitting diodes based on an orange iridium phosphorescent complex

Ping Chen, Li Zhao, Yu Duan, Yi Zhao, Wenfa Xie, Guohua Xie, Shiyong Liu, Liying Zhang, and Bin Li.

Journal of Luminescence Volume: 131 Issue: 10 Pages: 2144-2147 Published: 2011

DOI: 10.1016/j.jlumin.2011.05.038 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79957819301&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S0022231311003024

56. Harmonizing triplet level and ambipolar characteristics of wide-gap phosphine oxide hosts toward highly efficient and low driving voltage blue and green PHOLEDs: An effective strategy based on Spiro-systems

Jie Zhao, Guo-Hua Xie, Cheng-Rong Yin, Ling-Hai Xie, Chun-Miao Han, Run-Feng Chen, Hui Xu, Ming-Dong Yi, Zhao-Peng Deng, Shu-Fen Chen, Yi Zhao, Shi-Yong Liu, and Wei Huang.

Chemistry of Materials Volume: 23 Issue: 24 Pages: 5331-5339 Published: 2011

DOI: 10.1021/cm201654c / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-84055199268&partnerID=40&md5= ...

http://pubs.acs.org/doi/abs/10.1021/cm201654c

57. Novel heterofluorene-based hosts for highly efficient blue electrophosphorescence at low operating voltages

Run-Feng Chen, Guo-Hua Xie, Yi Zhao, Sheng-Lan Zhang, Jun Yin, Shi-Yong Liu, and Wei Huang.

Organic Electronics Volume: 12 Issue: 10 Pages: 1619-1624 Published: 2011

DOI: 10.1016/j.orgel.2011.05.025

http://www.sciencedirect.com/science/article/pii/S156611991100200X

58. Tailoring spatial distribution of the optical field intensity in semitransparent inverted organic solar cells

Chen Tao, Guohua Xie, Fanxu Meng, Shengping Ruan, and Weiyou Chen.

Journal of Physical Chemistry C Volume: 115 Issue: 25 Pages: 12611-12615 Published: 2011

DOI: 10.1021/jp201890q / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-79959492276&partnerID=40&md5= ...

http://pubs.acs.org/doi/abs/10.1021/jp201890q

59. Tailoring the efficiencies and spectra of white organic light-emitting diodes with the interlayers

Guohua Xie, Zhensong Zhang, Qin Xue, Shiming Zhang, Yang Luo, Li Zhao, Ping Chen, Baofu Quan, Yi Zhao, and Shiyong Liu.

Journal of Physical Chemistry C Volume: 115 Issue: 1 Pages: 264-269 Published: 2011

DOI: 10.1021/jp107319e / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-78651088282&partnerID=40&md5= ...

http://pubs.acs.org/doi/abs/10.1021/jp107319e

60. Towards highly efficient blue-phosphorescent organic light-emitting diodes with low operating voltage and excellent efficiency stability

Chunmiao Han, Guohua Xie, Hui Xu, Zhensong Zhang, Donghui Yu, Yi Zhao, Pengfei Yan, Qiang Li, and Shiyong Liu.

Chemistry - A European Journal Volume: 17 Issue: 2 Pages: 445-449 Published: 2011

DOI: 10.1002/chem.201001981 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-78651242909&partnerID=40&md5= ...

http://onlinelibrary.wiley.com/doi/10.1002/chem.201001981/full

2010

61. Dumbbell-shaped spirocyclic aromatic hydrocarbon to control intermolecular π-π Stacking interaction for high-performance nondoped deep-blue organic light-emitting devices

Ju-Fen Gu, Guo-Hua Xie, Long Zhang, Shu-Fen Chen, Zong-Qiong Lin, Zhen-Song, Zhang, Jian-Feng Zhao, Ling-Hai Xie, Chao Tang, Yi Zhao, Shi-Yong Liu, and Wei Huang.

Journal of Physical Chemistry Letters Volume: 1 Issue: 19 Pages: 2849-2853 Published: 2010

DOI: 10.1021/jz101039d / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-77957925637&partnerID=40&md5= ...

http://pubs.acs.org/doi/abs/10.1021/jz101039d

62. Highly efficient and low-cost top-emitting organic light-emitting diodes for monochromatic microdisplays

Guohua Xie, Qin Xue, Ping Chen, Chen Tao, Chunmei Zhao, Jianhua Lu, Zhaoxin Gong, Tianyu Zhang, Ran Huang, Huan Du, Wenfa Xie, Jingying Hou, Yi Zhao, and Shiyong Liu.

Organic Electronics: physics, materials, applications Volume: 11 Issue: 3 Pages: 407-411 Published: 2010

Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-75449119889&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S1566119909003498

63. Highly efficient top-emitting white organic light-emitting diodes with improved contrast and reduced angular dependence for active matrix displays

Guohua Xie, Zhensong, Zhang, Qin Xue, Shiming Zhang, Li Zhao, Yang Luo, Ping Chen, Baofu Quan, Yi Zhao, and Shiyong Liu.

Organic Electronics: physics, materials, applications Volume: 11 Issue: 12 Pages: 2055-2059 Published: 2010

Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-77958480494&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S1566119910003228

64. White organic light-emitting devices with a bipolar transport layer between blue fluorescent and yellow phosphor-sensitized-fluorescent emitting layers

Qin Xue, Guohua Xie, Ping Chen, Jianhua Lu, Dandan Zhang, Yanna Tang, Yi Zhao, Jingying Hou, and Shiyong Liu.

Synthetic Metals Volume: 160 Issue: 7-8 Pages: 829-831 Published: 2010

Times Cited: 8

DOI: 10.1016/j.synthmet.2009.12.011 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-77949653561&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S0379677909006626

2009

65. Enhanced hole injection in organic light-emitting devices by using Fe 3O4 as an anodic buffer layer

Dan-Dan Zhang, Jing Feng, Yue-Feng Liu, Yu-Qing Zhong, Yu Bai, Yu Jin, Guo-Hua Xie, Qin Xue, Yi Zhao, Shi-Yong Liu, and Hong-Bo Sun.

Applied Physics Letters, 94 (2009) 223306

DOI: 10.1063/1.3148657 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-66749154204&partnerID=40&md5= ...

http://scitation.aip.org/content/aip/journal/apl/94/22/10.1063/1.3148657

66. Highly efficient blue top-emitting device with phase-shift adjustment layer

Yanlong Meng, Wenfa Xie, Guohua Xie, Letian Zhang, Yi Zhao, Jingying Hou, and Shiyong Liu.

Optics Express Volume: 17 Issue: 7 Pages: 5364-5372 Published: 2009

DOI: 10.1364/OE.17.005364 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-65249085004&partnerID=40&md5= ...

https://www.osapublishing.org/oe/abstract.cfm?uri=oe-17-7-5364

67. Influence of interlayer on the performance of stacked white organic light-emitting devices

Ping Chen, Qin Xue, Wenfa Xie, Guohua Xie, Yu Duan, Yi Zhao, Shiyong Liu, Liying Zhang, and Bin Li.

Applied Physics Letters Volume: 95 Issue: 12 Published: 2009

DOI: 10.1063/1.3234379 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-70349671198&partnerID=40&md5= ...

http://scitation.aip.org/content/aip/journal/apl/95/12/10.1063/1.3234379

68. Pure red organic light-emitting diode based on a europium complex

Qin Xue, Ping Chen, Jianhua Lu, Guohua Xie, Jingying Hou, Shiyong Liu, Yi Zhao, Liying Zhang, and Bin Li.

Solid-State Electronics Volume: 53 Issue: 3 Pages: 397-399 Published: 2009

DOI: 10.1016/j.sse.2009.01.016 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-61349098755&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S0038110109000288

69. Role of tungsten oxide in inverted polymer solar cells

Chen Tao, Shengping Ruan, Guohua Xie, Xiangzi Kong, Liang Shen, Fanxu Meng, Caixia Liu, Xindong Zhang, Wei Dong, and Weiyou Chen.

Applied Physics Letters Volume: 94 Issue: 4 Published: 2009

DOI: 10.1063/1.3076134 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-59349084720&partnerID=40&md5= ...

http://scitation.aip.org/content/aip/journal/apl/94/4/10.1063/1.3076134

70. Semitransparent inverted polymer solar cells with MoO3 /Ag/ MoO3 as transparent electrode

Chen Tao, Guohua Xie, Caixia Liu, Xindong Zhang, Wei Dong, Fanxu Meng, Xiangzi Kong, Liang Shen, Shengping Ruan, and Weiyou Chen.

Applied Physics Letters, 95 (2009) 053303

This paper has been one of the TOP 20 Most Downloaded Articles in Applied Physics Letters—August 2009

http://scitation.aip.org/content/aip/journal/apl/95/5/10.1063/1.3196763

2008

71. Color-stable and efficient stacked white organic light-emitting devices comprising blue fluorescent and orange phosphorescent emissive units

Ping Chen, Qin Xue, Wenfa Xie, Yu Duan, Guohua Xie, Yi Zhao, Jingying Hou, Shiyong Liu, Liying Zhang, and Bin Li.

Applied Physics Letters, 93 (2008) 153508

DOI: 10.1063/1.2998598 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-54149112605&partnerID=40&md5= ...

http://scitation.aip.org/content/aip/journal/apl/93/15/10.1063/1.2998598

72. Erratum: Very low turn-on voltage and high brightness tris-(8- hydroxyquinoline)aluminum-based organic light-emitting diodes with a MoO x p-doping layer (Applied Physics Letters (2008) 92 (093305))

Xie, G.; Meng, Y.; Wu, F.; et al.

Applied Physics Letters Volume: 93 Issue: 22 Published: 2008

DOI: 10.1063/1.3046542 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-57349105065&partnerID=40&md5= ...

73. Influence of connecting units' thicknesses on tandem organic devices' performances

Mingjun Liu, Ping Chen, Qin Xue, Fangfang Jiang, Guohua Xie, Jingying Hou, Yi Zhao, Liying Zhang, and Bin Li.

Microelectronics Journal Volume: 39 Issue: 12 Pages: 1622-1625 Published: 2008

DOI: 10.1016/j.mejo.2008.02.018 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-56149100148&partnerID=40&md5= ...

http://www.sciencedirect.com/science/article/pii/S0026269208001298

74. Performance improvement of inverted polymer solar cells with different top electrodes by introducing a MoO3 buffer layer

Chen Tao, Shengping Ruan, Xindong Zhang, Guohua Xie, Liang Shen, Xiangzi Kong, Wei Dong, Caixia Liu, and Weiyou Chen.

Applied Physics Letters, 93 (2008) 193307

DOI: 10.1063/1.3026741 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-56249149223&partnerID=40&md5= ...

http://scitation.aip.org/content/aip/journal/apl/93/19/10.1063/1.3026741

75. Top-emitting white organic light-emitting devices based on microcavity structure

Wu, F. M.; Meng, Y. L.; Xie, G. H.; et al.

Guangdianzi Jiguang/Journal of Optoelectronics Laser Volume: 19 Issue: 10 Pages: 1287-1290 Published: 2008

Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-55649104274&partnerID=40&md5= ...

76. Very low turn-on voltage and high brightness tris-(8-hydroxyquinoline) aluminum-based organic light-emitting diodes with a Mo Ox p -doping layer

Guohua Xie, Yanlong Meng, Fengmin Wu, Chen Tao, Dandan Zhang, Mingjun Liu, Qin Xue, Wen Chen, and Yi Zhao.

Applied Physics Letters Volume: 92 Issue: 9 Published: 2008

DOI: 10.1063/1.2890490 / Author-provided URL : http://www.scopus.com/inward/record.url?eid=2-s2.0-40549118573&partnerID=40&md5= ...

http://scitation.aip.org/content/aip/journal/apl/92/9/10.1063/1.2890490

77. New spiro-fluorene-xanthene-diphenylphosphoryl-containing electrophosphorescent compound for organic electrophosphorescent device, is obtained by introducing diphenylphosphane oxide groups to different positions of spirofluorene xanthene

Patent Number(s): CN102229623-A

Patent Assignee: Univ Nanjing Posts&Telecom

Inventor(s): Chang, Y.; Huang, W.; Xie, L.;Guohua Xie et al.

榮譽(yù)獎(jiǎng)勵(lì)：

資料更新中……

與有機(jī)光電為伴

——記武漢大學(xué)化學(xué)與分子科學(xué)學(xué)院副教授謝國華 

 

2016年5月，德國達(dá)姆施塔特——全球領(lǐng)先的科技公司默克集團(tuán)在“2016 SID顯示周（SID Display Week 2016）”上展示一系列面向未來應(yīng)用的材料。有機(jī)發(fā)光二極管（OLED）材料赫然在列，這些材料以“完美像素（The Perfect Pixel）”為口號(hào)，可提高顯示器的分辨率、增強(qiáng)對(duì)比度、提高能效、增強(qiáng)色彩強(qiáng)度，并有助于降低制造成本。OLED已悄然成為現(xiàn)代智能手機(jī)和智能手表等可穿戴設(shè)備必不可少的一部分。正在開發(fā)中的透明和可彎曲OLED顯示器展示了其未來潛力。謝國華在科研之路上把握住的，便是這炙手可熱的有機(jī)光電材料和器件。 

初識(shí)有機(jī)光電 

謝國華，武漢大學(xué)化學(xué)與分子科學(xué)學(xué)院副教授，有機(jī)/高分子光電功能材料湖北省重點(diǎn)實(shí)驗(yàn)室副研究員。采訪開始時(shí)謝國華剛從實(shí)驗(yàn)室走出來，談起有機(jī)光電材料和器件研究，謝國華如談起陪伴自己多年的老友，一路走來相識(shí)相知，有太多的故事和情懷。

OLED作為繼LCD（液晶顯示器）、LED之后新一代的平板顯示技術(shù)，科技含量高、應(yīng)用領(lǐng)域廣、發(fā)展前景好、有著巨大經(jīng)濟(jì)和社會(huì)效益，成為世界各國競相扶持、發(fā)展的新型顯示器件，我國也將其相關(guān)的光電材料作為重點(diǎn)扶持新型節(jié)能材料。歷經(jīng)近三十年的快速發(fā)展，OLED已經(jīng)逐步完成從單純的基礎(chǔ)研究到大力開發(fā)產(chǎn)品新階段的轉(zhuǎn)變。OLED具有低工作電壓、高亮度、高效率、高對(duì)比度、厚度薄、重量輕、可視視角寬、工作溫度范圍寬、工藝簡單、可制作在柔性襯底上等諸多優(yōu)點(diǎn)，在新一代的顯示和照明產(chǎn)品上有著廣泛的應(yīng)用前景。謝國華的科研之路便從有機(jī)光電開始，我國第一款QVGA格式有機(jī)發(fā)光微顯示原型樣機(jī)的研發(fā)工作便留下了他的足跡。

21世紀(jì)初，我國有機(jī)微顯示器各項(xiàng)技術(shù)發(fā)展亟待提高，面對(duì)社會(huì)發(fā)展對(duì)新一代具有自主知識(shí)產(chǎn)權(quán)顯示器件的迫切需求，如何加緊研究步伐克服現(xiàn)有技術(shù)難題受到各界專業(yè)人士重視。OLED的工作電壓與常規(guī)CMOS電路的工作電壓不匹配也一度成為影響科研順利進(jìn)展的難題之一。

常規(guī)高速CMOS電路最大只能提供小于5V的驅(qū)動(dòng)電壓，而一般的OLED一般在5V以上才會(huì)有明亮的發(fā)光，那么，即使CMOS電路達(dá)到最大輸出電壓時(shí)也難以使OLED發(fā)射足夠的的光子達(dá)到閱讀所需的一般亮度（比如100〜200cd/m2）。因此，OLED的工作電壓與CMOS電路的工作電壓不匹配成為有源顯示技術(shù)與硅基高速電子電路集成的主要限制因素。當(dāng)時(shí)，還在攻讀微電子學(xué)與固體電子學(xué)碩士學(xué)位的謝國華對(duì)此問題充滿興趣，并加入國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃“硅上有機(jī)發(fā)光微顯示及其物理研究”的課題攻關(guān)。作為課題后期工作主要完成人之一，謝國華及其同事從改善有機(jī)電致發(fā)光器件的性能以滿足實(shí)用化需求的角度出發(fā)，嘗試用有機(jī)半導(dǎo)體電學(xué)摻雜技術(shù)克服OLED和CMOS電路工作電壓不匹配的難題，成功研制了我國第一款有機(jī)發(fā)光微顯示原型樣機(jī)。

“在合作中學(xué)習(xí)，在交流中進(jìn)步”，科研工作從來都不是閉門造車的事情，謝國華非常重視學(xué)科交流磨合后所迸發(fā)出來的火花。在研究低驅(qū)動(dòng)電壓和高發(fā)光效率的有機(jī)電致發(fā)光與中小尺寸有源顯示襯底的集成技術(shù)中，謝國華還與韓國首爾大學(xué)Prof.Seung-Ki Joo課題組共同研制了基于p-溝道低溫多晶硅襯底的底發(fā)射型有源顯示OLED（2英寸對(duì)角線），該項(xiàng)研究成果幾乎可以直接應(yīng)用到我們每天接觸到的手機(jī)顯示屏上。

人需要在競爭中求生存，更要學(xué)會(huì)奮斗。博士畢業(yè)后，在德國著名有機(jī)光電研究領(lǐng)域頂尖大牛Karl Leo教授的支持下，謝國華成功爭取到德國洪堡基金會(huì)的資助，同時(shí)在弗勞恩霍夫有機(jī)材料和器件中心和德雷斯頓工業(yè)大學(xué)應(yīng)用光物理研究所開展OLED的穩(wěn)定性研究工作。通過研究有機(jī)電致發(fā)光材料和器件的熱學(xué)穩(wěn)定性，謝國華成功開發(fā)出了可在100℃環(huán)境溫度下工作的頂部發(fā)射型OLED。

在德國期間，謝國華的另一項(xiàng)標(biāo)志性工作則是有機(jī)電學(xué)摻雜技術(shù)研究。在吉林大學(xué)本科學(xué)習(xí)的半導(dǎo)體物理專業(yè)課知識(shí)再次讓謝國華受益，扎實(shí)的專業(yè)知識(shí)使謝國華了解到有機(jī)半導(dǎo)體和無機(jī)半導(dǎo)體的相通性，電學(xué)摻雜這項(xiàng)技術(shù)主要是通過在半導(dǎo)體中適當(dāng)?shù)匾�入合適的施主或者受主雜質(zhì)，就可以分別實(shí)現(xiàn)半導(dǎo)體的N型和P型摻雜，從而使半導(dǎo)體的費(fèi)米能級(jí)向傳輸態(tài)移動(dòng)，提高電荷的傳輸能力，降低工作電壓。基于有機(jī)-有機(jī)、有機(jī)-無機(jī)混合電學(xué)摻雜技術(shù)，謝國華首次實(shí)現(xiàn)了基于有機(jī)隧穿結(jié)的P-I-N-P型頂發(fā)射OLED，其在1000cd/m2亮度下的壽命達(dá)到超長的50萬小時(shí)，也就是說這類器件理論上可以穩(wěn)定地工作50年。 

專注有機(jī)光電 

“國外科研氛圍很好，有很強(qiáng)的專注精神”。2013年，謝國華加入英國圣安德魯斯大學(xué)物理和天文系有機(jī)半導(dǎo)體中心，從事有機(jī)發(fā)光器件的光相干特性研究，嘗試尋找治療皮膚癌的新思路。

艾默生曾說過，凡事欲其成功，必要付出代價(jià)是奮斗。在異國他鄉(xiāng)，除高壓科研工作內(nèi)容外，還要對(duì)抗艱苦環(huán)境、水土不服、言語溝通等一系列問題，“從無到有，測試平臺(tái)的每一個(gè)部件都是自己購買，自己搭建；單獨(dú)屬于自己的測試光相干特性實(shí)驗(yàn)室空調(diào)不好，衣服幾乎每天都是濕漉漉的；而且為了更準(zhǔn)確地探測光的相干特性，大部分時(shí)間都是在暗室中工作，時(shí)間長了眼睛很難受”，和很多科研工作者一樣，相比奮斗日子里艱難困苦，他更感謝逆境里自我的快速成長。

多學(xué)科協(xié)同展開合作為謝國華的科研課題提供了強(qiáng)大支持，通過對(duì)微電子、光電子、物理、材料、化學(xué)等多學(xué)科入手，謝國華在與英國工程與自然科學(xué)研究委員會(huì)的資助的大型多方合作研究中，成功搭建了世界上第一套探測有機(jī)發(fā)光器件空間相干長度的系統(tǒng)，并首次探測到有機(jī)電致發(fā)光器件和有機(jī)激光的空間相干長度。謝國華搭建的有機(jī)發(fā)光器件空間相干長度的系統(tǒng)在研究弱相干光源的相干特性方面發(fā)揮了重要作用，在光通訊與生物醫(yī)療應(yīng)用方面將具有重要的科研價(jià)值和實(shí)用性。例如，相干性好的光可以提高光在生物組織中的穿透能力，可以將柔軟、可穿戴式的有機(jī)相干光源貼敷于皮膚癌變或者色素沉著的地方，使光達(dá)到深層組織，從而提高動(dòng)態(tài)療法的治療效果。

在國外多年，謝國華還身兼多個(gè)學(xué)術(shù)雜志審稿人之職。這些職務(wù)或許增加了他的工作量，但能夠在第一時(shí)間接觸到學(xué)術(shù)界最新科技動(dòng)向，掌握最新的科研成果，在他看來已經(jīng)是值得了。

這種開闊的視野也影響了他回國后的科研和教學(xué)工作。到武漢大學(xué)任職后，他發(fā)現(xiàn)，相比往昔，我國有機(jī)光電發(fā)展已取得了長足進(jìn)步，但與國外相比還有待提高。此時(shí)，加強(qiáng)學(xué)科交融、合作創(chuàng)新才是進(jìn)步之根本。謝國華對(duì)此深信不疑，并身體力行走在合作的道路中，早期與南京郵電大學(xué)黃維教授課題組、黑龍江大學(xué)許輝教授課題組共同開發(fā)了非摻雜性深藍(lán)光OLED和基于膦氧主體的高效藍(lán)光和白光磷光OLED,這些工作一經(jīng)報(bào)道，馬上受到關(guān)注，引用率很高。這對(duì)謝國華來說，也是一次突破，他希望能進(jìn)一步拓展有機(jī)光電領(lǐng)域相關(guān)研究，也感激武漢大學(xué)為他提供了一個(gè)好的平臺(tái)能夠繼續(xù)施展自己的才華，與其他學(xué)科的同事開展交叉學(xué)科研究。

而作為一位師者，謝國華也將自己多年的心得融入到傳道授業(yè)過程中。他喜歡將學(xué)生們“關(guān)”到實(shí)驗(yàn)室里，讓他們在一線上通過直觀操作迅速掌握實(shí)驗(yàn)技能。“實(shí)踐是最好的老師”，謝國華說。但他也很重視能在“教”與“學(xué)”的過程中及時(shí)調(diào)整教學(xué)策略，不斷提高學(xué)生學(xué)習(xí)效率和教學(xué)質(zhì)量。“理論武裝也是很重要的”，謝國華認(rèn)為，科研立足于理論，服務(wù)于實(shí)踐，他會(huì)反復(fù)叮囑學(xué)生在實(shí)驗(yàn)操作之余要有選擇性地看文獻(xiàn)書籍，通過學(xué)習(xí)和總結(jié)別人的經(jīng)驗(yàn)成果，使自己的思路更加開闊。

成功，是選擇后的堅(jiān)持。謝國華這樣教導(dǎo)學(xué)生，也告誡自己。談及未來發(fā)展，他依然對(duì)機(jī)光電材料和器件“一往情深”，并表示，“希望在有機(jī)光電材料和器件領(lǐng)域更加深入地開展有特色的多科學(xué)交叉研究”。

      來源：科學(xué)中國人 2016年第7期