Improved efficiency of organic solar cells with modified hole-extraction layers

被引:3
作者
Li, Jiao [1 ,2 ]
Liu, Juncheng [1 ]
Gao, Congjie [2 ]
机构
[1] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Peoples R China
[2] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China
关键词
bromine; conducting materials; doping; organic solar cells; poly(3,4-ethylene dioxythiophene):polystyrene sulfonic acid (PEDOT:PSS); power conversion efficiency; thin film; PHOTOVOLTAIC CELLS; THIN-FILMS; PERFORMANCE;
D O I
10.1002/polb.22356
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The aim of this work has been to study the influence of modified hole-extraction layers on the performance of organic solar cells (OSCs) based on blends of poly (3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester. The hole-extraction layers consist of poly (3,4-ethylene dioxythiophene):polystyrene sulfonic acid (PEDOT:PSS) doped with different concentrations of bromine. Compared with pristine OSC without adding bromine to the hole-extraction layer, the bromine-doped OSCs show a 49% increase in the power conversion efficiency (from 2.12 to 3.16%), which could be attributed to the increase of electrical and optical properties of PEDOT:PSS films after the addition of bromine. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 50: 125128, 2012
引用
收藏
页码:125 / 128
页数:4
相关论文
共 26 条
[1]   Extraction of bulk and contact components of the series resistance in organic bulk donor-acceptor-heterojunctions [J].
Aernouts, T ;
Geens, W ;
Poortmans, J ;
Heremans, P ;
Borghs, S ;
Mertens, R .
THIN SOLID FILMS, 2002, 403 :297-301
[2]  
Bernede JC, 1998, EUR POLYM J, V34, P269
[3]   Built-in field electroabsorption spectroscopy of polymer light-emitting diodes incorporating a doped poly(3,4-ethylene dioxythiophene) hole injection layer [J].
Brown, TM ;
Kim, JS ;
Friend, RH ;
Cacialli, F ;
Daik, R ;
Feast, WJ .
APPLIED PHYSICS LETTERS, 1999, 75 (12) :1679-1681
[4]   Interface modification to improve hole-injection properties in organic electronic devices [J].
Choulis, SA ;
Choong, VE ;
Patwardhan, A ;
Mathai, MK ;
So, F .
ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (08) :1075-1080
[5]   The limits to organic photovoltaic cell efficiency [J].
Forrest, SR .
MRS BULLETIN, 2005, 30 (01) :28-32
[6]  
Groenendaal BL, 2000, ADV MATER, V12, P481, DOI 10.1002/(SICI)1521-4095(200004)12:7<481::AID-ADMA481>3.0.CO
[7]  
2-C
[8]   POLY(ALKYLENEDIOXYTHIOPHENE)S - NEW, VERY STABLE CONDUCTING POLYMERS [J].
HEYWANG, G ;
JONAS, F .
ADVANCED MATERIALS, 1992, 4 (02) :116-118
[9]   Spectroscopic study on sputtered PEDOT • PSS:: Role of surface PSS layer [J].
Hwang, Jaehyung ;
Amy, Fabrice ;
Kahn, Antoine .
ORGANIC ELECTRONICS, 2006, 7 (05) :387-396
[10]   Aluminum phthalocyanine chloride/C60 organic photovoltaic cells with high open-circuit voltages [J].
Kim, Do Young ;
So, Franky ;
Gao, Yongli .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, 93 (09) :1688-1691