Highly efficient inverted polymer solar cells using fullerene derivative modified TiO2 nanorods as the buffer layer

被引：16

作者：

Sun, Chunming ^{[1
,2
]}

Li, Xiaodong ^{[2
]}

Wang, Guojie ^{[2
]}

Li, Pandeng ^{[2
]}

Zhang, Wenjun ^{[2
]}

Jiu, Tonggang ^{[2
]}

Jiang, Nianquan ^{[1
]}

Fang, Junfeng ^{[2
]}

机构：

[1] Wenzhou Univ, Coll Phys & Elect Informat Engn, Wenzhou 325035, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 37期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

PHOTOVOLTAIC CELLS; PERFORMANCE; INTERLAYER; OXIDE; DYE;

D O I：

10.1039/c4ra02254h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We reported a significant improvement in the efficiency of polymer solar cells by introducing C-60 pyrrolidine tris-acid (CPTA) to modify the interface between inorganic TiO2 nanorods and the organic active layer. The devices with CPTA-modified TiO2 as the cathode buffer layer exhibited a power conversion efficiency (PCE) as high as 8.74%, accounting for a 12.8% enhancement compared with the bare TiO2 based devices (7.75%) in the polymer thieno[3,4-b] thiophene/benzodithiophene:[6,6]-phenyl C-71-butyric acid methyl ester (PTB7:PC71BM) system. We found that the CPTA layer improves the surface properties of the bare TiO2 film so that charge transfer between the active layer and the TiO2 layer is enhanced.

引用

页码：19529 / 19532

页数：4

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