National Changhua University of Education Institutional Repository : Item 987654321/12640
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 6507/11669
造访人次 : 29956020      在线人数 : 553
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/12640

题名: Numerical Simulation on White OLEDs with Dotted-line Doped Emitting Layers
作者: Chang, Shu-Hsuan;Wen, Chien-Yang;Huang, Yi-Hsiang;Kuo, Yen-Kuang
贡献者: 物理學系
关键词: White organic light-emitting diodes;OLED;Dotted-line doped layers;Numerical simulation
日期: 2009-01
上传时间: 2012-07-19T01:51:18Z
出版者: SPIE--The International Society for Optical Engineering
摘要: White organic light-emitting diodes (OLEDs) have attracted great attention recently. In this study, high-efficiency white organic light-emitting diodes with dotted-line doped layers are numerically investigated with the APSYS (abbreviation of Advanced Physical Model of Simulation Devices) simulation program. The APSYS simulation program, developed by Crosslight Inc., is capable of dealing with the optical, electrical, and thermal characteristics of OLED devices. To approach the real situation, the OLED device fabricated by Park et al. (Current Applied Physics 1, 116, 2001) was first modeled by adjusting the appropriate physical parameters. Based on this OLED structure, a new structure of ITO/α-NPD (40 nm)/Alq3:DCJTB (30 nm)/Alq3 (30 nm)/Mg:Ag emitting quasi-white light was then proposed. Then, the single layer of Alq3:DCJTB was replaced by multi-(Alq3:DCJTB/Alq3)n layers, which are the so-called dotted-line doped layers (see, e.g., paper by Han et al., Solid State Communications 141, 332, 2007), to further improve the optical performance. The optical properties of the white OLEDs with different pairs of (Alq3:DCJTB/Alq3)n dotted-line doped layers are investigated and discussed in detail. Optimization of the proposed quasi-white OLED structures is attempted. The simulation results indicate that the OLED with dotted-line doped layers has higher radiative recombination rate and better emission efficiency than that with a single Alq3:DCJTB layer. The physical origin of the improved optical performance for the OLED with dotted-line doped layers could be due to the increased electrons and holes at the interfaces between the Alq3:DCJTB and Alq3 layers, which thus results in higher radiative recombination rate and better emission efficiency.
關聯: Proceedings of SPIE, 7213: 72131J (Organic Photonic Materials and Devices XI)
显示于类别:[物理學系] 會議論文

文件中的档案:

档案 大小格式浏览次数
index.html0KbHTML596检视/开启


在NCUEIR中所有的数据项都受到原著作权保护.

 

DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈