Effect of ultraviolet-ozone on ITO/P3HT interface for PEDOT:PSS-free polymer solar cells

被引：18

作者：

Dong, Wan Jae ^{[1
,2
]}

Jung, Gwan Ho ^{[1
,2
]}

Kim, Soo Young ^{[3
]}

Lee, Jong-Lam ^{[1
,2
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyeongbuk, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Div Adv Mat Sci, Pohang 790784, Gyeongbuk, South Korea

[3] Chung Ang Univ, Sch Chem Engn & Mat Sci, Seoul 156756, South Korea

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2013年 / 109卷

基金：

新加坡国家研究基金会;

关键词：

Polymer solar cells; Hole extraction layer; PEDOT:PSS; UV-ozone; Interface; INDIUM-TIN-OXIDE; WORK FUNCTION; TRANSPORT LAYERS; GRAPHENE OXIDE; ANODE; EFFICIENCY;

D O I：

10.1016/j.solmat.2012.10.023

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A simple device structure of bulk hetero-junction polymer solar cells (PSCs) with poly(3-hexylthiophene) and phenyl-C61-butyric acid methyl ester (P3HT:PCBM) is demonstrated without poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS). Ultraviolet (UV)-ozone treatment alters the surface atomic compositions making it oxygen rich and carbon deficient. These chemical changes increase the workfunction of indium tin oxide (ITO) by 0.2 eV. The ITO anode with high workfunction results in efficient hole collection at ITO/P3HT interface. This method makes it possible to eliminate PEDOT:PSS with high efficiency of 3.35%, identical to the device with PEDOT:PSS (3.35%). In addition, the PSC with UV-ozone treated ITO anode shows 3.6 times longer life-time than that with PEDOT:PSS. (C) 2012 Elsevier B.V. All rights reserved.

引用

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页码：240 / 245

页数：6

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