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

被引：58
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
收藏
页码：196 / 203
页数：8
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