Ultraviolet photoelectron spectroscopy on new heterocyclic materials for multilayer organic light emitting diodes

被引:17
作者
Casu, MB
Imperia, P
Schrader, S
Falk, B
Jandke, A
Strohriegl, R
机构
[1] Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany
[2] Inst Thin Film Technol & Microsensor, D-14513 Teltow Berlin, Germany
[3] Univ Bayreuth, D-95440 Bayreuth, Germany
关键词
organic light emitting devices; conjugated polymers; photoelectron spectroscopy; semi-empirical models; model calculations;
D O I
10.1016/S0379-6779(01)00427-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electronic band structure of three heterocyclic model compounds: 5,12-dihydro-quinoxalino-2,3-b-phenazine; 7,18-dihydro-5,7,11,16,18,20,22-octa-aza-nonacene; and 1,3,5-Tris[(3-phenyl-6-tri-fluoro-methyl)-quinoxaline-2-yl]benzene was studied by ultraviolet photoelectron spectroscopy. We also determined their ionisation potential, between 5.3 and 6.0 eV, suggesting that these materials can efficiently act as electron transporting layer in organic light emitting devices (OLEDs). (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:79 / 81
页数:3
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