Halogens as trace compounds in polymeric light-emitting diodes

被引：9
作者：
Andersson, G
Brongersma, HH
van der Gon, AWD
van IJzendoorn, LJ
de Jong, MP
de Voigt, MJA
机构：
[1] Eindhoven Univ Technol, Fac Appl Phys, NL-5600 MB Eindhoven, Netherlands
[2] Eindhoven Univ Technol, Ctr Plasma Phys, NL-5600 MB Eindhoven, Netherlands
[3] Eindhoven Univ Technol, Calipso LEIS Expertise Ctr, NL-5600 MB Eindhoven, Netherlands
来源：
SYNTHETIC METALS | 2000年 / 113卷 / 03期
关键词：
conducting polymers; polymeric LEDs; elemental analysis; ion scattering spectroscopy (ISS); particle induced X-ray emission (PIXE);
D O I：
10.1016/S0379-6779(00)00208-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigated the elemental composition of different layers of polymeric light-emitting diode (pLED) model structures. Of special concern have been poly-(3,4-ethylenedioxythiophene) (PEDOT)/polystyrenesulfonate (PSS) and poly-phenylenevinylene (PPV) films, which are used widely in pLEDs. We found halogen compounds as impurities: bromine in the PEDOT/PSS and chlorine in the PPV layer. It is argued that the presence of halogen containing compounds could be an important reason for the degradation of pLEDs. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：245 / 249
页数：5
相关论文
共 26 条
[1]   Impact collision ion scattering spectroscopy (ICISS) and neutral impact collision ion scattering spectroscopy (NICISS) at surfaces of organic liquids [J].
Andersson, G ;
Morgner, H .
SURFACE SCIENCE, 1998, 405 (01) :138-151
[2]   Polymer light-emitting diodes; from materials to devices [J].
Berntsen, A ;
Croonen, Y ;
Cuijpers, R ;
Habets, B ;
Liedenbaum, C ;
Schoo, H ;
Visser, RJ ;
Vleggaar, J ;
van de Weijer, P .
ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES, 1997, 3148 :264-271
[3]   HIGH-RESOLUTION DETERMINATION OF THE ELECTRON-AFFINITY OF FLUORINE AND BROMINE USING CROSSED ION AND LASER-BEAMS [J].
BLONDEL, C ;
CACCIANI, P ;
DELSART, C ;
TRAINHAM, R .
PHYSICAL REVIEW A, 1989, 40 (07) :3698-3701
[4]   POLY(P-PHENYLENEVINYLENE) LIGHT-EMITTING-DIODES - ENHANCED ELECTROLUMINESCENT EFFICIENCY THROUGH CHARGE CARRIER CONFINEMENT [J].
BROWN, AR ;
BRADLEY, DDC ;
BURROUGHES, JH ;
FRIEND, RH ;
GREENHAM, NC ;
BURN, PL ;
HOLMES, AB ;
KRAFT, A .
APPLIED PHYSICS LETTERS, 1992, 61 (23) :2793-2795
[5]  
BUCHELNIKOVA IS, 1959, SOV PHYS JETP-USSR, V8, P783
[6]  
Burroughes J. H., 1990, NATURE, V347, P29
[7]   Enhanced luminance in polymer composite light emitting devices [J].
Carter, SA ;
Scott, JC ;
Brock, PJ .
APPLIED PHYSICS LETTERS, 1997, 71 (09) :1145-1147
[8]  
DEJONG M, IN PRESS
[9]  
DEJONG MP, IN PRESS P IBA 14 EC
[10]   Degradation of polymer-based light-emitting diodes during operation [J].
Ettedgui, E ;
Davis, GT ;
Hu, B ;
Karasz, FE .
SYNTHETIC METALS, 1997, 90 (01) :73-76
123