ZnO nano-ridge structure and its application in inverted polymer solar cell

被引：243

作者：

Sekine, Nobuyuki ^{[1
,2
]}

Chou, Cheng-Hsuan ^{[1
,3
]}

Kwan, Wei Lek ^{[1
]}

Yang, Yang ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Fuji Elect Adv Technol Co Ltd, Hino, Tokyo 1918502, Japan

[3] Natl Chiao Tung Univ, Dept Appl Chem, Phosphors Res Lab, Hsinchu 30050, Taiwan

来源：

ORGANIC ELECTRONICS | 2009年 / 10卷 / 08期

关键词：

Polymer solar cell; Inverted polymer solar cell; Zinc oxide; Nano-ridge; FILMS;

D O I：

10.1016/j.orgel.2009.08.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a unique nano-ridge structure of zinc oxide (ZnO) and its application in high performance inverted polymer solar cells. The ZnO nano-ridge structure was formed by a sol-gel process using a ramp annealing method. As the solvent slowly evaporated due to the low heating rate, there was sufficient time for the gel particles to structurally relax and pile up, resulting in a dense and undulated film. Nano-ridges with peak as high as 120 nm and valley to valley distance of about 500 nm were formed. This film provided an effective hole blocking layer and also an increased interfacial area for electron collection. An inverted bulk heterojunction polymer solar cell was fabricated using the ZnO nano-ridge film as the electron collecting layer. The device showed a high power conversion efficiency of 4.00%, an improvement of about 25% over similar solar cells made with a planar film of ZnO nanoparticles. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1473 / 1477

页数：5

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