Influence of the nature of polyaniline-based hole-injecting layer on polymer light emitting diode performances

被引:29
作者
Bejbouj, Habiba [1 ,3 ]
Vignau, Laurence [1 ]
Miane, Jean Louis [1 ]
Olinga, Thomas [2 ]
Wantz, Guillaume [1 ]
Mouhsen, Azzedine [3 ]
Oualim, El Moustafa [3 ]
Harmouchi, Mouhammed [3 ]
机构
[1] Univ Bordeaux, CNRS, UMR 5218, ENSCPB,Lab Integrat Mat Syst IMS, F-33607 Pessac, France
[2] Plateau Tech ENSCPB, F-33607 Pessac, France
[3] Univ Hassan Premier, Lab Opt Appl & Transfert Energie, Settat 26000, Morocco
来源
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2010年 / 166卷 / 03期
关键词
Polyaniline; Hole-injecting layer; Polymer light emitting diodes; INDIUM-TIN-OXIDE; STABILITY; TRANSPORT; CONDUCTIVITY; MORPHOLOGY; INTERFACE; DOPANTS; ACID;
D O I
10.1016/j.mseb.2009.09.032
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have studied the use of water and solvent-based polyaniline (PANI) dispersions as a transparent hole-injecting layer in polymer light emitting diodes (PLEDs). We have investigated the effects of the pH, the conductivity, the work function and the nature of the solvent and the dopant on the hole-injection properties. The water-dispersed PANI at a low pH (pH 1.8) showed an efficiency similar to that of PEDOT-based devices due to its high HOMO level and high conductivity. For the solvent-based PANI dispersions, the influence of the nature of the solvent and the dopant on the crystallinity, the conductivity of the PANIs and on the performances of the light emitting devices is discussed. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:185 / 189
页数:5
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