Monolayer passivation of the transparent electrode in organic solar cells

被引：34

作者：

Johnev, B ^{[1
]}

Vogel, M ^{[1
]}

Fostiropoulos, K ^{[1
]}

Mertesacker, B ^{[1
]}

Rusu, M ^{[1
]}

Lux-Steiner, MC ^{[1
]}

Weidinger, A ^{[1
]}

机构：

[1] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

来源：

THIN SOLID FILMS | 2005年 / 488卷 / 1-2期

关键词：

indium-tin oxide; work function; organic semiconductors; solar cells;

D O I：

10.1016/j.tsf.2005.04.058

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

the surface of transparent indium-tin oxide (ITO) electrode is electronically modified by a chemically bonded monolayer of organic molecules or a smile layer of adsorbed acid ions. The electrode surface was examined with Kelvin probe force microscopy in vacuum. Treatments with phosphoric acid and periodic,acid both lead to an increase in work function of about 0.7 eV with a good homogeneity. For both chemical monolayer and acid treatments the substrates show a uniform work function different from untreated ITO as expected for an uninterrupted film. We show that these treatments lead to an improvement of the phthalocyanine/C-60 solar cell performance compared to cells on untreated ITO. Monochromatic external quantum efficiencies of up to 36% and power conversion. efficiencies of up to 1.7% were obtained. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：270 / 273

页数：4

共 27 条

[1] Electroluminescence: enhanced injection using ITO electrodes coated with a self assembled monolayer
Appleyard, SFJ
Willis, MR
[J]. OPTICAL MATERIALS, 1998, 9 (1-4) : 120 - 124
[2] Brabec CJ, 2001, ADV FUNCT MATER, V11, P15, DOI 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO
[3] 2-A
[4] Effect of LiF/metal electrodes on the performance of plastic solar cells
Brabec, CJ
Shaheen, SE
Winder, C
Sariciftci, NS
Denk, P
[J]. APPLIED PHYSICS LETTERS, 2002, 80 (07) : 1288 - 1290
[5] Brabec CJ, 2001, ADV FUNCT MATER, V11, P374, DOI 10.1002/1616-3028(200110)11:5<374::AID-ADFM374>3.0.CO
[6] 2-W
[7] Built-in field electroabsorption spectroscopy of polymer light-emitting diodes incorporating a doped poly(3,4-ethylene dioxythiophene) hole injection layer
Brown, TM
Kim, JS
Friend, RH
Cacialli, F
Daik, R
Feast, WJ
[J]. APPLIED PHYSICS LETTERS, 1999, 75 (12) : 1679 - 1681
[8] Controlling the work function of indium tin oxide: Differentiating bipolar from local surface effects
Bruner, EL
Koch, N
Span, AR
Bernasek, SL
Kahn, A
Schwartz, J
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (13) : 3192 - 3193
[9] Polymer light-emitting diodes with polyethylene dioxythiophene-polystyrene sulfonate as the transparent anode
Cao, Y
Yu, G
Zhang, C
Menon, R
Heeger, AJ
[J]. SYNTHETIC METALS, 1997, 87 (02) : 171 - 174
[10] Work function of ITO substrates and band-offsets at the TPD/ITO interface determined by photoelectron spectroscopy
Chkoda, L
Heske, C
Sokolowski, M
Umbach, E
Steuber, F
Staudigel, J
Stössel, M
Simmerer, J
[J]. SYNTHETIC METALS, 2000, 111 : 315 - 319

← 1 2 3 →