期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 30, 期 14, 页码 1238-1242出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200900196
关键词
adhesion; coatings; interfaces; light-emitting diodes; reversible addition fragmentation transfer (RAFT)
资金
- IRTG [1404/2006-IRTG-001]
- Deutsche Forschungsgemeinschaft (DFG) of Germany
- Korean Science Foundation (KOSEF) of Korea
- Ministry Of Education, Science and Technology [400-2008-0230]
Optoelectronic devices usually consist of a transparent conductive oxide (TCO) as one electrode. Interfacial engineering between the TCO electrode and the overlying organic layers is an important method for tuning device performance. We introduce poly(methylsilsesquioxane)-poly(N,N-di-4-methylphenylamino styrene) (PMSSO-PTPA) as a potential hole-injection layer forming material. Spin-coating and thermally induced crosslinking resulted in an effective planarization of the anode interface. HOMO level (-5.6 eV) and hole mobility (1 x 10(-6) cm(2) . Vs(-1)) of the film on ITO substrates were measured time-of-flight measurement demonstrating the hole injection capability of the layer. Adhesion and stability for further multilayer built-up could be demonstrated. Contact angle measurements and tape tests after several solvent treatments proved the outstanding film stability.
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