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题名:
Spectral Characteristics of White Organic Light-Emitting Devices Based on Phosphorescent System of Three Iridium Chelates
作者: Liu Sheng-qiang1; Yu Jun-sheng1; Zeng Yan-bo1; Zhao Juan1; Du Chun-lei2
刊名: SPECTROSCOPY AND SPECTRAL ANALYSIS
出版日期: 2013-03-01
卷号: 33, 期号:3, 页码:636-641
关键词: Organic light-emitting device (OLED) ; White light ; Iridium chelate ; Spectral characteristics ; A phosphorescence system consisting of three iridium chelates
文章类型: Article
英文摘要: A white organic light-emitting device (WOLED) with a yellow phosphorescence material, bis[2-(4-tertbutylphenyl) benzothiazolato-N,C-2'] iridium (acetylacetonate) [(t-bt)(2)Ir(acac)], and two blue phosphorescence materials, iridium(III) bis (4', 6'-difluorophenylpyridinato) tetrakis (1-pyrazolyl) borate (FIr6) and bis [(4, 6-difluorophenyl)-pyridinato-N, C2'] (picolinate) iridium (III) (FIrpic), were fabricated. Stable white emission was realized by using undoped ultrathin yellow emissive layer (EML), two doped blue EMLs together with the proper thickness of an interlayer confining the exciton. The WOLED performed pure white light emission with the Commissions Internationale de l'Eclairage (CIE) coordinates of (0.29 +/- 0.01, 0.34 +/- 0.01) from 6 to 14. V. Moreover, electroluminescence (EL) characteristics of the devices were also studied to verify the emissive mechanism from a phosphorescent system consisting of three iridium chelates. Also, the results showed that the triple-phosphor-element EMLs WOLED had lower efficiency roll-off owing to the stable recombination zone.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Spectroscopy
研究领域[WOS]: Spectroscopy
关键词[WOS]: ELECTROLUMINESCENCE ; EFFICIENT ; DIODES ; LAYER
收录类别: SCI
语种: 英语
WOS记录号: WOS:000317439900013
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/1231
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Univ Elect Sci & Technol China, Sch Optoelect Informat, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
2.Chinese Acad Sci, Chengdu Inst Opt & Elect, Chengdu 610209, Peoples R China

Recommended Citation:
Liu Sheng-qiang,Yu Jun-sheng,Zeng Yan-bo,et al. Spectral Characteristics of White Organic Light-Emitting Devices Based on Phosphorescent System of Three Iridium Chelates[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2013,33(3):636-641.
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