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MA Minhui, HE Qi Performance Optimization of Blue Organic Light-Emitting Device Based on NPB
Author(s): MA Minhui, HE Zuo
Pages: 42-
45
Year: 2013
Issue:
5
Journal: Electronics and Packaging
Keyword: blue OLED; hole blocking layer; NPB; Alq3;
Abstract: 基于结构为ITO/NPB/BCP/Alq3/Mg:Ag的NPB(N, N’-bis(1-naphthyl)-N, N’-diphenyl-1,1’-biphenyl-4,4’-diamine)蓝色有机电致发光器件,利用Alq3的空穴阻挡能力及高的荧光效率优化了器件结构.具有不同厚度Alq3空穴阻挡层的器件性能测试结果表明,Alq3对器件发光亮度影响明显,选择适当的Alq3厚度可使得器件的发光亮度提高大约两倍.电致发光光谱测试结果表明,器件的发光基本来自NPB的蓝色发光,而Alq3扮演了辅助发光层的作用.
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