Effective Work Function Modulation of Graphene/Carbon Nanotube Composite Films As Transparent Cathodes for Organic Optoelectronics

被引：133

作者：

Huang, Jen-Hsien ^{[1
]}

Fang, Jheng-Hao ^{[1
]}

Liu, Chung-Chun ^{[1
]}

Chu, Chih-Wei ^{[1
,2
]}

机构：

[1] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan

[2] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan

来源：

ACS NANO | 2011年 / 5卷 / 08期

关键词：

graphene; transparent electrode; solar cells; surfactant; work function; cathode; LIGHT-EMITTING-DIODES; POLYMER SOLAR-CELLS; PHOTOVOLTAIC CELLS; FUNCTION SURFACE; LOW-TEMPERATURE; CESIUM; OXIDE; PERFORMANCE; TRANSISTORS; EMISSION;

D O I：

10.1021/nn201253w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, we found that the work functions (Phi(w)) of solution-processable, functional graphene/carbon nanotube-based transparent conductors were readily manipulated, varying between 5.1 and 3.4 eV, depending on the nature of the doping alkali carbonate salt. We used the graphene-based electrodes possessing lower values of Phi(w) as cathodes in Inverted-architecture polymer photovoltaic devices to effectively collect electrons, giving rise to an optimal power conversion efficiency of 1.27%.

引用

页码：6262 / 6271

页数：10

共 47 条

[1]

[Anonymous], NANOTECHNOLOGY

[2]

[Anonymous], ELECT STRUCTURE CHEM

[3] Controlling work function of reduced graphite oxide with Au-ion concentration [J].

Benayad, Anass ;

Shin, Hyeon-Jin ;

Park, Hyeon Ki ;

Yoon, Seon-Mi ;

Kim, Ki Kang ;

Jin, Mei Hua ;

Jeong, Hae-Kyung ;

Lee, Jae Cheol ;

Choi, Jae-Young ;

Lee, Young Hee .

CHEMICAL PHYSICS LETTERS, 2009, 475 (1-3) :91-95

[4] A Transparent, Flexible, Low-Temperature, and Solution-Processible Graphene Composite Electrode [J].

Chang, Haixin ;

Wang, Guangfeng ;

Yang, An ;

Tao, Xiaoming ;

Liu, Xuqing ;

Shen, Youde ;

Zheng, Zijian .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (17) :2893-2902

[5] Polymer solar cells incorporating one-dimensional polyaniline nanotubes [J].

Chang, Mei-Ying ;

Wu, Chong-Si ;

Chen, Yi-Fan ;

Hsieh, Bi-Zen ;

Huang, Wen-Yao ;

Ho, Ko-Shan ;

Hsieh, Tar-Hwa ;

Han, Yu-Kai .

ORGANIC ELECTRONICS, 2008, 9 (06) :1136-1139

[6] Efficient bulk-heterojunction photovoltaic cells with transparent multi-layer graphene electrodes [J].

Choe, Minhyeok ;

Lee, Byoung Hoon ;

Jo, Gunho ;

Park, June ;

Park, Woojin ;

Lee, Sangchul ;

Hong, Woong-Ki ;

Seong, Maeng-Je ;

Kahng, Yung Ho ;

Lee, Kwanghee ;

Lee, Takhee .

ORGANIC ELECTRONICS, 2010, 11 (11) :1864-1869

[7] Improved performance in n-channel organic thin film transistors by nanoscale interface modification [J].

Chu, Chih-Wei ;

Sung, Chao-Feng ;

Lee, Yuh-Zheng ;

Cheng, Kevin .

ORGANIC ELECTRONICS, 2008, 9 (02) :262-266

[8] Langmuir-Blodgett Assembly of Graphite Oxide Single Layers [J].

Cote, Laura J. ;

Kim, Franklin ;

Huang, Jiaxing .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (03) :1043-1049

[9] Continuous, Highly Flexible, and Transparent Graphene Films by Chemical Vapor Deposition for Organic Photovoltaics [J].

De Arco, Lewis Gomez ;

Zhang, Yi ;

Schlenker, Cody W. ;

Ryu, Koungmin ;

Thompson, Mark E. ;

Zhou, Chongwu .

ACS NANO, 2010, 4 (05) :2865-2873

[10] AUGER-ELECTRON SPECTROSCOPY OF CESIUM ADSORBED ON CLEAN AND OXYGEN COVERED (100) TUNGSTEN [J].

DESPLAT, JL .

SOLID STATE COMMUNICATIONS, 1973, 13 (06) :689-691

← 1 2 3 4 5 →