Studies of blue organic electroluminescent devices using the polymer/dopant systems as a light-emitting layer

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

In this study, blue organic light-emitting diodes (OLEDs) using polymer-dopant systems as a light-emitting layer were fabricated. The light-emitting layer was produced via a spin-coating process. The materials used in the light-emitting layer included: poly(9-vinylcarbazole) (PVK) as a matrix material, and blue-emission 4,4′-bis(2,2-diphenylvinyl)biphenyl (DPVBi) as a light-emitting material. The blue OLED was fabricated by blending PVK and DPVBi according to the proportion of mass as specified for a light-emitting layer. Process relevant photophysical mechanisms and energy transfer phenomena were studied using absorption, photoluminescence (PL), photoluminescent excitation, and electroluminescence (EL) spectra. We have learned that there was energy transfer phenomenon between PVK and DPVBi. More specifically, the EL spectrum of PVK:DPVBi was significantly different from the PL spectra of PVK, DPVBi, and PVK:DPVBi, shining to a longer wavelength and showing multiple boarding emission peaks (maximum emission at 465 and 486 nm). The electro-optical characteristics of the blue OLED and the possible origin of the difference between the EL and PL spectra were discussed.

原文English
主出版物標題Organic Light Emitting Materials and Devices XI
DOIs
出版狀態Published - 2007
事件Organic Light Emitting Materials and Devices XI - San Diego, CA, United States
持續時間: 2007 8月 262007 8月 29

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
6655
ISSN(列印)0277-786X

Other

OtherOrganic Light Emitting Materials and Devices XI
國家/地區United States
城市San Diego, CA
期間07-08-2607-08-29

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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