ScholarWorks: 고기능 EL 소자용 고분자/유기 재료의 합성 및 전기 광학적 특성; 1. 도포법에 의한 EL 소자의 특성

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School of Materials Science and Engineering

Research Interests

Flexible OLED new materials, process and fabrication
Touch Screen Panel(TSP) new materials and process new materials and process
Nano-materials synthesis and application (Ag nano-wire and metal mesh electrode)

고기능 EL 소자용 고분자/유기 재료의 합성 및 전기 광학적 특성; 1. 도포법에 의한 EL 소자의 특성

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Other Titles: Synthesis of Improved Polymer/organic Materials for Electroluminescence Device and Electro-Optical Characteristics 1. Characteristics of EL Device by Doped Polymer Method

Keywords: organic thin file; electroluminescence devices; molecularly doped hole transport layer; spin coating method; film casting method

Abstract: Organic thin film electroluminescence devices were fabricated using by molecularly doped method with N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-bipheny1-4,4'-diamine(TPD) as a hole transport agent, tris(8-quinolinolato) aluminium(Ⅲ) (Alq3) as an omitting and electron transport agent, and poly(methyl methacrylate) (PMMA), polycarbonate (PC) and poly(viny1 carbazole) (PVK) as polymer matrices. The effect of polymer matrix and hole transport layer fabrication method of EL devices on the electroluminescence characteristics were examined. Spin coating and film casting method were compared for the formation of molecularly doped hole transport layer. The highest intensity and stability of EL device was obtained by film casting method using dichloroethane as a solvent at a polymer/TPD concentration of 0.005 wt% and film casting temperature of 30℃. The electroluminescence intensity increased in the order of PMMA3/Mg(PVK/TPD = 30/70).