Effect of electrical doping on molecular level alignment at organic-organic heterojunctions

被引：78

作者：

Gao, WY ^{[1
]}

Kahn, A ^{[1
]}

机构：

[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 26期

关键词：

D O I：

10.1063/1.1585123

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of electrical doping on the interface molecular level alignment at organic-organic (OO) heterojunctions is studied with ultraviolet photoemission spectroscopy. Interfaces between hole transport layers (HTL) and electron transport layers are investigated as a function of p doping of the HTLs. Doping induces the formation of an interface dipole with corresponding shift in the relative position of molecular levels across the interface. The modification of the OO electronic structure is believed to be due to the presence of doping-induced excess holes at the interface. (C) 2003 American Institute of Physics.

引用

页码：4815 / 4817

页数：3

共 20 条

[1] Interface electronic structure of organic semiconductors with controlled doping levels
Blochwitz, J.
Fritz, T.
Pfeiffer, M.
Leo, K.
Alloway, D. M.
Lee, P. A.
Armstrong, N. R.
[J]. ORGANIC ELECTRONICS, 2001, 2 (02) : 97 - 104
[2] Characterization of the interface dipole at organic/metal interfaces
Crispin, X
Geskin, V
Crispin, A
Cornil, J
Lazzaroni, R
Salaneck, WR
Brédas, JL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (27) : 8131 - 8141
[3] GAO W, IN PRESS J APPL PHYS
[4] Electronic structure and current injection in zinc phthalocyanine doped with tetrafluorotetracyanoquinodimethane: Interface versus bulk effects
Gao, WY
Kahn, A
[J]. ORGANIC ELECTRONICS, 2002, 3 (02) : 53 - 63
[5] Controlled p-doping of zinc phthalocyanine by coevaporation with tetrafluorotetracyanoquinodimethane:: A direct and inverse photoemission study
Gao, WY
Kahn, A
[J]. APPLIED PHYSICS LETTERS, 2001, 79 (24) : 4040 - 4042
[6] Metal-dependent charge transfer and chemical interaction at interfaces between 3,4,9,10-perylenetetracarboxylic bisimidazole and gold, silver and magnesium
Hill, I. G.
Schwartz, J.
Kahn, A.
[J]. ORGANIC ELECTRONICS, 2000, 1 (01) : 5 - 13
[7] Molecular level alignment at organic semiconductor-metal interfaces
Hill, IG
Rajagopal, A
Kahn, A
Hu, Y
[J]. APPLIED PHYSICS LETTERS, 1998, 73 (05) : 662 - 664
[8] Energy level alignment at interfaces of organic semiconductor heterostructures
Hill, IG
Kahn, A
[J]. JOURNAL OF APPLIED PHYSICS, 1998, 84 (10) : 5583 - 5586
[9] Organic semiconductor interfaces: electronic structure and transport properties
Hill, IG
Milliron, D
Schwartz, J
Kahn, A
[J]. APPLIED SURFACE SCIENCE, 2000, 166 (1-4) : 354 - 362
[10] Charge-separation energy in films of π-conjugated organic molecules
Hill, IG
Kahn, A
Soos, ZG
Pascal, RA
[J]. CHEMICAL PHYSICS LETTERS, 2000, 327 (3-4) : 181 - 188

← 1 2 →