Biased internal potential distributions in a bulk-heterojunction organic solar cell incorporated with a TiOx interlayer

被引：28

作者：

Kong, Jaemin ^{[2
]}

Lee, Jongjin ^{[1
]}

Jeong, Yonkil ^{[1
]}

Kim, Maengjun ^{[1
]}

Kang, Sung-Oong ^{[1
]}

Lee, Kwanghee ^{[1
,2
]}

机构：

[1] Gwangju Inst Sci & Technol, Res Inst Solar & Sustainable Energies RISE, Kwangju 500712, South Korea

[2] Gwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 21期

基金：

新加坡国家研究基金会;

关键词：

LIGHT-EMITTING-DIODES; CONDUCTING POLYMER; SPECTROSCOPY; VOLTAGE;

D O I：

10.1063/1.4722802

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

External-biased potential distributions of a polymer bulk-heterojunction (BHJ) solar cell, incorporated with electron/hole transporting layers, were directly obseved through a cross-sectional Kelvin probe force microscopy. The bulk electric field of BHJ was found to be nearly field-free even under reverse biases, and the field-free region was probed to expand with the incorporation of TiOx electron transporting layer; as a result, inducing a decrease of quasi-Fermi level splitting region in obtaining a high fill factor in the TiOx-interlayered junction photodiodes. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4722802]

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页数：3

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