https://scholars.lib.ntu.edu.tw/handle/123456789/294440
標題: | Graded doping profile for reduction of carrier trapping effect in organic light emitting devices incorporating doped polymers | 作者: | H.H. Chang, CHUNG-CHIH WU C. Yang, C.W. Chen, C.C. Lee, |
公開日期: | 一月-2001 | 卷: | 78 | 期: | 5 | 起(迄)頁: | 574-576 | 來源出版物: | Applied Physics Letters | 摘要: | Dispersing emissive dopants into luminescent polymers is an effective approach to enhance luminescence and to tune emission color in organic light-emitting devices incorporating polymer films. However, the carrier trapping effect due to emissive dopants often causes deterioration of electrical characteristics. In this letter, we show that, by introducing a graded doping profile to match the carrier recombination zone in the doped polymer, the carrier trapping, and the deterioration of electrical characteristics can be minimized while the enhancement in efficiency maintains. The finite-source dye-diffusion thermal transfer is used to produce graded doping profiles into a luminescent polymer. The effectiveness of this approach has been demonstrated in both single-layer and heterostructure devices incorporating doped polymers. © 2001 American Institute of Physics. |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/294440 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0011138329&doi=10.1063%2f1.1344223&partnerID=40&md5=805a7e627b014902c5f01be58535672a |
DOI: | 10.1063/1.1344223 |
顯示於: | 電機工程學系 |
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