Enhancing the short-circuit current and power conversion efficiency of polymer solar cells with graphene quantum dots derived from double-walled carbon nanotubes

被引：65
|
作者：
Li, Fushan [1 ]
Kou, Lijie [1 ]
Chen, Wei [1 ]
Wu, Chaoxing [1 ]
Guo, Tailiang [1 ]
机构：
[1] Fuzhou Univ, Inst Optoelect Technol, Fuzhou 350002, Peoples R China
来源：
NPG ASIA MATERIALS | 2013年 / 5卷
基金：
国家高技术研究发展计划(863计划); 高等学校博士学科点专项科研基金;
关键词：
graphene quantum dots; polymer solar cells; power conversion efficiency; short-circuit current; PHOTOVOLTAIC CELLS;
D O I：
10.1038/am.2013.38
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Derived from double-walled carbon nanotubes, graphene quantum dots (GQDs) with a uniform size distribution were prepared through solution chemistry. The GQDs in chlorobenzene exhibited bright blue emission upon UV excitation. The introduction of the GQDs into a bulk heterojunction polymer solar cell based on poly(3-hexylthiophene):(6,6)-phenyl-C61 butyric acid methyl ester (P3HT:PCBM) resulted in a significant enhancement of the power conversion efficiency (PCE). The efficiency was further improved by adjusting the PCBM content in the active layer, reaching a maximum PCE of 5.24%. This ternary system based on blended P3HT:PCBM:GQDs represents a new method to enhance the efficiency of polymer solar cells.
引用
收藏
页码：e60 / e60
页数：4
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