https://scholars.lib.ntu.edu.tw/handle/123456789/183416
標題: | Blue phosphorescent organic light-emitting device with double emitting layer | 作者: | JIUN-HAW LEE Huang, Chih-Lun Hsiao, Chih-Hung MAN-KIT LEUNG Yang, Chih-Chiang Chao, Chun-Chieh |
公開日期: | 六月-2009 | 卷: | 94 | 期: | 22 | 來源出版物: | Applied Physics Letters | 摘要: | In this paper, we demonstrated a blue phosphorescent organic light-emitting device (OLED) with a higher current-efficiency and a lower driving-voltage using conventional iridium(III)bis[4,6-(di-fluorophenyl)-pyridinato- N,C 2′] picolinate (FIrpic) doped in the double emitting layer (DEML), which consists of a hole- and an electron-transporting material, N, N′ -dicarbazolyl-3,5-benzene (mCP) and 2, 2′ -bis[5-phenyl-2-(1,3,4) oxadazolyl]biphenyl (OXD), respectively. Compared to OLEDs with only single mCP- and OXD-EML, current-efficiency of the optimized DEML-OLED increases by 30.82% and 141.37%, combining with a voltage reduction of 0.34 and 0.59 V at 50 mA/ cm2, which comes from the better charge balance in DEML. © 2009 American Institute of Physics. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-66749115423&doi=10.1063%2f1.3147866&partnerID=40&md5=2bf4cdd9cc7dbb3af9fa2ba7d14dac5a | ISSN: | 00036951 | DOI: | 10.1063/1.3147866 |
顯示於: | 化學系 |
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