Influence of metal cathode for organic photovoltaic device performance

被引：35

作者：

Eo, Yong Seok ^{[1
,2
]}

Rhee, Hee Woo ^{[2
]}

Chin, Byung Doo ^{[3
]}

Yu, Jae-Woong ^{[1
]}

机构：

[1] Korea Inst Sci & Technol, Ctr Energy Mat Res, Seoul 130650, South Korea

[2] Sogang Univ, Dept Chem Engn, Seoul 121742, South Korea

[3] Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Kyeonggi, South Korea

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 17-18期

关键词：

Organic photovoltaic; Metal electrode; Charge extraction; Series resistance; Open circuit voltage; OPEN-CIRCUIT VOLTAGE; PLASTIC SOLAR-CELLS; WORK FUNCTION; ELECTRODES; ORIGIN;

D O I：

10.1016/j.synthmet.2009.05.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Influences of metal electrode on the performance of organic photovoltaic device were studied. An appropriate energy level was set between HOMO of donor material and LUMO of acceptor material used to fabricate device and metals with workfunction above, below and within this appropriate range were selectively chosen to form electron collecting electrode. Metals which can form an Ohmic contact showed enhanced power conversion efficiency, while metals forming a Schottky type contact showed poor power conversion efficiency. Series resistances showed characteristic values for each range. Open circuit voltages were in the same order with power conversion efficiency, showing a dependence on injection barrier at negative electrode contact. The power conversion efficiency of low workfunction metal electrode (i.e. calcium electrode device)was higher than that of gold electrode where the electron extraction is spontaneous process. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1910 / 1913

页数：4

共 22 条

[1] Production aspects of organic photovoltaics and their impact on the commercialization of devices [J].

Brabec, CJ ;

Hauch, JA ;

Schilinsky, P ;

Waldauf, C .

MRS BULLETIN, 2005, 30 (01) :50-52

[2] Effect of LiF/metal electrodes on the performance of plastic solar cells [J].

Brabec, CJ ;

Shaheen, SE ;

Winder, C ;

Sariciftci, NS ;

Denk, P .

APPLIED PHYSICS LETTERS, 2002, 80 (07) :1288-1290

[3] The influence of materials work function on the open circuit voltage of plastic solar cells [J].

Brabec, CJ ;

Cravino, A ;

Meissner, D ;

Sariciftci, NS ;

Rispens, MT ;

Sanchez, L ;

Hummelen, JC ;

Fromherz, T .

THIN SOLID FILMS, 2002, 403 :368-372

[4]

Brabec CJ, 2001, ADV FUNCT MATER, V11, P374, DOI 10.1002/1616-3028(200110)11:5<374::AID-ADFM374>3.0.CO

[5]

2-W

[6] Characterization of organic solar cells: the importance of device layout [J].

Cravino, Antonio ;

Schilinsky, Pavel ;

Brabec, Christoph J. .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (18) :3906-3910

[7] Accelerated lifetime measurements of P3HT:PCBM solar cells [J].

De Bettignies, Remi ;

Leroy, Jocelyne ;

Firon, Muriel ;

Sentein, Carole .

SYNTHETIC METALS, 2006, 156 (7-8) :510-513

[8]

Frohne H, 2002, CHEMPHYSCHEM, V3, P795, DOI 10.1002/1439-7641(20020916)3:9<795::AID-CPHC795>3.0.CO

[9]

2-A

[10] Direct evidence for interaction of magnesium with tris(8-hydroxy-quinoline) aluminum [J].

He, P ;

Au, FCK ;

Wang, YM ;

Cheng, LF ;

Lee, CS ;

Lee, ST .

APPLIED PHYSICS LETTERS, 2000, 76 (11) :1422-1424

← 1 2 3 →