Electrochemically polymerized nanostructured poly(3.4-ethylenedioxythiophene)-poly(styrenesulfonate) buffer layer for a high performance polymer solar cell

被引:32
作者
Yang, Hongbin [1 ]
Song, Qunliang
Lu, Zhisong
Guo, Chuxian
Gong, Cheng
Hu, Weihua
Li, Chang Ming
机构
[1] Nanyang Technol Univ, Ctr Adv Bionanosyst, Singapore 637457, Singapore
关键词
CHARGE-TRANSPORT; PHOTOVOLTAIC DEVICES; HOLE MOBILITY; MORPHOLOGY; EFFICIENCY; FILMS; ELECTROCATALYSIS; RECOMBINATION; NANOCOMPOSITE;
D O I
10.1039/c0ee00117a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An electrochemically polymerized uniform column-like poly(3.4-ethylenedioxythiophene)poly(styrenesulfonate) (PEDOT:Pss) nanostructure synthesized on indium tin oxide substrate has been used as the buffer layer to construct a polymer bulk heterojunction solar cell, demonstrating 50% higher power conversion efficiency (from 2.56 to 3.86%) than that of using the spin-coated PEDOT: Pss as the buffer layer. The enhanced device performance is ascribed to the improved carrier transport from the highly dense, uniform column-like PEDOT: Pss nanostructure, which penetrates into the polymer blend film to improve the connection of the active layer with the anode while providing a large conducting area for charge transport. This approach is compatible with the state-of-the-art bulk heterojunction solar cells, thus offering a high throughput, low cost manufacturing process for a high performance device.
引用
收藏
页码:1580 / 1586
页数:7
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