Enhancement of photovoltaic performance by two-step dissolution processed photoactive blend in polymer solar cells

被引：6

作者：

Hu, Rong ^{[1
]}

Cheng, Jiang ^{[1
]}

Ni, Haitao ^{[1
]}

Zhu, Jiang ^{[1
]}

Liu, Hongdong ^{[1
]}

Zhang, Wei ^{[2
]}

Liu, Yurong ^{[1
]}

Li, Lu ^{[1
]}

Guo, Chaozhong ^{[1
]}

Zheng, Kaibo ^{[2
,3
]}

机构：

[1] Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Chongqing 402160, Peoples R China

[2] Lund Univ, Div Phys Chem, S-22100 Lund, Sweden

[3] Qatar Univ, Coll Engn, Gas Proc Ctr, POB 2713, Doha, Qatar

来源：

SCIENCE CHINA-MATERIALS | 2016年 / 59卷 / 10期

基金：

中国国家自然科学基金;

关键词：

polymer solar cells; photoactive layer; two-step dissolution; power conversion efficiency; SELF-ORGANIZATION; MORPHOLOGY; EFFICIENCY; POLY(3-HEXYLTHIOPHENE);

D O I：

10.1007/s40843-016-5128-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

based on poly(3-hexylthiophene):[6,6]-phenyl-C-61-butyric acid methyl ester (P3HT:PC61BM) and polythieno[3,4-b]-thiophene-co-benzodithiophene:[6,6]-phenyl-C-71-butyric acid methyl ester (PTB7:PC71BM) photovoltaic systems, by a two-step dissolution treatment of photoactive blends. Optical and morphological characterization revealed that the composition of the ordered polymer and donor/acceptor phase structure in the photoactive layer can be optimized using a two-step dissolution treatment. In addition, time-resolved photoluminescence indicated that exciton dissociation efficiency could be increased using this method. Current density-voltage (J-V) measurements showed that power conversion efficiencies (PCE) of the two-step dissolution treated devices were higher than those of one-step treated devices by 24% and 8% for P3HT:PC61BM and PTB7:PC71BM systems, respectively. Therefore, this two-step dissolution treatment further optimizes the performance of polymer solar cells.

引用

页码：842 / 850

页数：9

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