Brush painted V2O5 hole transport layer for efficient and air-stable polymer solar cells

被引：57

作者：

Cho, Se-Phin ^{[2
,3
]}

Yeo, Jun-Seok ^{[4
]}

Kim, Dong-Yu ^{[4
]}

Na, Seok-in ^{[2
,3
]}

Kim, Seok-Soon ^{[1
]}

机构：

[1] Kunsan Natl Univ, Dept Nano & Chem Engn, Kunsan 573701, Jeollabuk Do, South Korea

[2] Chonbuk Natl Univ, Profess Grad Sch Flexible & Printable Elect, Jeonju Si 561756, Jeollabuk Do, South Korea

[3] Chonbuk Natl Univ, Polymer Mat Fus Res Ctr, Jeonju Si 561756, Jeollabuk Do, South Korea

[4] Gwangju Inst Sci & Technol, Kwangju 500712, South Korea

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2015年 / 132卷

基金：

新加坡国家研究基金会;

关键词：

Polymer solar cells; Hole transport layer; V2O5; Brush painting; TRANSITION-METAL OXIDES; REDUCED GRAPHENE OXIDE; INDIUM-TIN-OXIDE; PHOTOVOLTAIC CELLS; VANADIUM-OXIDE; NICKEL-OXIDE; TRANSPARENT; INTERFACE;

D O I：

10.1016/j.solmat.2014.08.019

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：

As an alternative hole transport layer (m) to poly(3,4-ethylendioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), we investigated V2O5 thin films fabricated by simple brush painting without any post-treatments. Polymer solar cells (PSCs) with V2O5 fabricated by brush painting showed superior performance to that of conventional PEDOT:PSS based system; in particular, higher FF was obtained. Because more hydrophobic oxide surface induces better physical contact and better wetting of active blends, lower R-s is obtained; thus, the resulting device shows higher performance. PSC with brush painted V2O5 at 50 degrees C using 0.99 vol% vanadium (V) oxytriisopropoxide in isopropyl alcohol exhibited the best power conversion efficiency (PCE) of 3.83%. Furthermore, employment of V2O5 as HTL leads to significant improvement in long-term stability in air (dropping of PCE of conventional PEDOT:PSS system to similar to 0% and retention of PCE of V2O5 based PSC to over 60% after exposure in air for 96 h without any encapsulation). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：196 / 203

页数：8

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