Advanced surface modification of indium tin oxide for improved charge injection in organic devices

被引：170

作者：

Hanson, EL ^{[1
]}

Guo, J ^{[1
]}

Koch, N ^{[1
]}

Schwartz, J ^{[1
]}

Bernasek, SL ^{[1
]}

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 28期

关键词：

D O I：

10.1021/ja050481s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new method is described for surface modification of ITO with an electroactive organic monolayer. This procedure was done to enhance hole injection in an electronic device and involves sequential formation of a monolayer of a pi-conjugated organic semiconductor on the indium tin oxide (ITO) surface followed by doping with a strong electron acceptor. The semiconductor monolayer is covalently bound to the ITO, which ensures strong adhesion and interface stability; reduction of the hole injection barrier in these devices is accomplished by formation of a charge-transfer complex by doping within the monolayer. This gives rise to very high current densities in simple single layer devices and double layer light emitting devices compared to those with untreated ITO anodes.

引用

页码：10058 / 10062

页数：5

共 37 条

[11] Cui J, 2002, ADV MATER, V14, P565, DOI 10.1002/1521-4095(20020418)14:8<565::AID-ADMA565>3.0.CO
[12] 2-3
[13] Self-assembled monolayers of α,ω-diphosphonic acids on Ti enable complete or spatially controlled surface derivatization
Danahy, MP
Avaltroni, MJ
Midwood, KS
Schwarzbauer, JE
Schwartz, J
[J]. LANGMUIR, 2004, 20 (13) : 5333 - 5337
[14] Controlled p doping of the hole-transport molecular material N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′-biphenyl-4,4′-diamine with tetrafluorotetracyanoquinodimethane
Gao, WY
Kahn, A
[J]. JOURNAL OF APPLIED PHYSICS, 2003, 94 (01) : 359 - 366
[15] GOUZMAN I, UNPUB
[16] Direct measurement of surface complex loading and surface dipole and their effect on simple device behavior
Guo, J
Koch, N
Schwartz, J
Bernasek, SL
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (09) : 3966 - 3970
[17] Bonding self-assembled, compact organophosphonate monolayers to the native oxide surface of silicon
Hanson, EL
Schwartz, J
Nickel, B
Koch, N
Danisman, MF
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (51) : 16074 - 16080
[18] Enhanced hole injection in organic light-emitting diodes using a SAM-derivatised ultra-thin gold anode supported on ITO glass
Hatton, RA
Willis, MR
Chesters, MA
Rutten, FJM
Briggs, D
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (01) : 38 - 43
[19] Hatton RA, 2001, THIN SOLID FILMS, V394, P292, DOI 10.1016/S0040-6090(01)01191-9
[20] Mechanisms of injection enhancement in organic light-emitting diodes through an Al/LiF electrode
Heil, H
Steiger, J
Karg, S
Gastel, M
Ortner, H
von Seggern, H
Stössel, M
[J]. JOURNAL OF APPLIED PHYSICS, 2001, 89 (01) : 420 - 424

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