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

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