The effect of small-molecule electron transporting materials on the performance of polymer solar cells

被引：9

作者：

Du, Hailiang ^{[1
]}

Deng, Zhenbo ^{[1
]}

Lue, Zhaoyue ^{[1
]}

Chen, Zheng ^{[1
]}

Zou, Ye ^{[1
]}

Yin, Yuehong ^{[1
]}

Xu, Denghui ^{[2
]}

Wang, Yongsheng ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Inst Optoelect Technol, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China

[2] Beijing Technol & Business Univ, Dept Math & Phys, Beijing 100037, Peoples R China

来源：

THIN SOLID FILMS | 2011年 / 519卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Polymer solar cells; Small-molecule; Electron transporting; Interlayer; CATHODE BUFFER LAYER; PHOTOVOLTAIC CELLS; HETEROJUNCTIONS; BATHOCUPROINE;

D O I：

10.1016/j.tsf.2011.02.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It has been studied that the effect of different electron transporting materials, including 2-(4-biphenyl)-5-(4-tert-butylphenyl)1,3,4-oxidiazole (PBD), tris-8-hydroxy-quinolinato aluminum and Bis[2-(2-benzothiazoly) phenolato]zinc(II) on the properties of solar cells based on poly(3-hexylthiophene) and [6,6]-phenyl-C(61)-buytyric add methyl ester composites. The results suggest that the insertion of electron transporting layers (EFL) can improve the open circuit voltage (Voc) and power conversion efficiency (PCE) of the polymer solar cells. And the effect of thickness of the three ETL has also been investigated. The cell with a PBD layer exhibits an enhanced Voc by 0.16 V and the highest PCE, which is 1.6 times that of the cell without ETL The improved performance is due to the increased built-in potential in the interface between the active layer and Al electrode. (c) 2011 Elsevier B.V. All rights reserved.

引用

页码：4357 / 4360

页数：4

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