Effect of Ultrathin Magnesium Layer on the Performance of Organic Light-Emitting Diodes

摘要：

Organic light-emitting diodes (OLEDs) were fabricated with a structure of indium-tin-oxide (ITO)/poIystyrene(PS):N,N-bis-(3-naphthyl)-N,N-bip henyl-(l,l-biphenyl)-4,4-diamine(NPB)/tris-(8hydro-xyquinoline)-aluminum(Alq3)/Magnesium(Mg)/tris(8-hydroxyquinoline)-aluminum(Alq3)/Mg:Ag.By inserting an ultrathin Mg layer within an Alq3 layer, the electrical and luminescent properties were optimized.As a result, an optimized film thickness about 5nm of Mg layer was obtained.By analyzing the optical and electron transporting properties of OLEDs, electron mobility and trap characteristic energy were extracted based on space charge limited conduction (SCLC) and trapped charge limited conduction (TCLC) theories.

关键词： Electron mobility organic light- emitting diodes(OLEDs) trap characteristic energy ultrathin metallic layer

作者: Wan Wang Hongjuan Zeng Qing Li Shuangjiang Yu

作者单位: State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information and School of Life Science and Technology ,University of Electronic Science and Technology of China,Chengdu 610054,China

会议类型: 国际会议

会议名称: 2011 IEEE International Conference on Smart Grid and Clean Energy Technologies(2011 IEEE智能电网与清洁能源技术国际会议 ICSGCE2011)

会议地点: 成都

会议语种:英文

页码: 321-324

在线出版日期: 2011-09-27（万方平台首次上网日期，不代表论文的发表时间）