Organic Light-Emitting Diodes with Low Turn-On Voltages and Improved Stability Featuring a PTCDI-C13:CuPc Mixed Hole Injection Layer

Title
Organic Light-Emitting Diodes with Low Turn-On Voltages and Improved Stability Featuring a PTCDI-C13:CuPc Mixed Hole Injection Layer
Author(s)
윤원민[윤원민]장재영[장재영]남수지[남수지]박찬언[박찬언]김세현정대성[정대성]
Keywords
INDIUM-TIN-OXIDE; ELECTROLUMINESCENT DEVICES; ENHANCED PERFORMANCE; PLASMA TREATMENT
Issue Date
201408
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
SCIENCE OF ADVANCED MATERIALS, v.6, no.8, pp.1676 - 1680
Abstract
We report herein that a mixed layer of the electron-donating copper phthalocyanine (CuPc) and electron-accepting N,N'-ditridecyl perylene diimide (PTCDI-C13) can be an efficient hole injection layer (HIL) for high-performance organic light-emitting diodes (OLEDs). From photophysical, morphological, and structural studies combined with electrical analysis based on the Mott-Schottky model, we conclude that the excellent miscibility between CuPc and PTCDI-C13 enables highly efficient charge transfer, and thus effective p-doping of CuPc, leading to increased hole conductivity of the HIL. As a result, turn-on voltages as low as 2.45 V and greatly improved thermal stabilities as compared to those of OLEDs with conventional CuPc HILs are observed.
URI
http://hdl.handle.net/YU.REPOSITORY/31265http://dx.doi.org/10.1166/sam.2014.1940
ISSN
1947-2935
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공과대학 > 화학공학부 > Articles
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