| 激子限域结构的蓝紫色有机电致发光器件 |
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| 引用本文： | 张积梅,蒋雪茵,张志林,朱文清,吴有智,郑新友,姜标,付克洪.激子限域结构的蓝紫色有机电致发光器件[J].上海大学学报(英文版),2005,9(2):172-175. |
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| 作者姓名： | 张积梅 蒋雪茵 张志林 朱文清 吴有智 郑新友 姜标 付克洪 |
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| 作者单位： | [1]SchoolofMaterialsScienceandEngineering,ShanghaiUniversity,Shanghai201800,P.R.China [2]ShanghaiInstituteofOrganicChemistry,ChineseAcademyofSciences,Shanghai201800,P.R.China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China ( Grant Nos. 60077020，90201034) and the Foundation of National High Technology Research and Development Program (Grant No.2001AA313070) |
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| 摘 要： | Three types of blue-violet light-emitting devices based on an exciton-confined structure have been prepared, in which different materials were used as emitting layers and hole-transporting layers. They had structures of ITO/CuPc/NPB/CPB/TPBi/Alq3/LiF/Al(DNC), ITO/CuPc/JO3/CBP/TPBi/Alq3/LiF/Al(DJC ) and ITO/CuPc/JO3/FNPD/TPBi/Alq3/LiF/Al(DJF). Here copper phthalocyanine (CuPc) acted as hole-injecting layer( HIL), N, N-bis-(1-naphthyl)-N, N-diphenyl-1. lbiphenyl-4-4-diamine(NPB) and J03 bole-transporting layers ( HTLs), 4,4‘-dicarbazolyl-1,1‘ -biphenyl (CBP) and FNPD as emitting layers( EMLs), N, arylbenzimidazoles (TPBi) as holeblocking layer ( HBL ), and tris(8-quinolinolato ) aluminium complex ( Alq3 ) as electron- transporting layer ( ETL). TPBi applied here is a good confinement to both charges and excitons, which make the devices emit blue-violet light originating from the emitter, CBP and FNPD. Their characteristics have also been investigated. The result shows that the device DNC based on NPB/CBP has the best performance among the three devices. The excellence of DNC is attributed to the better hole-transporting ability of NPB as compared with J03, and the better emitting ability of CBP as compared with FNPD, although the best matching of energy levels is found in the hole-transporting layer and emitting layer of the device DJP.
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| 关 键 词： | 有机电致发光材料 激子限制结构 发射能力 聚合物 波长 量子产额 |
| 收稿时间： | 10 October 2003 |
Blue-violet organic electroluminescent devices based on exciton-confined structure |
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| Zhang?Ji-mei,Jiang?Xue-yin,Zhang?Zhi-lin,Zhu?Wen-qing,Wu?You-zhi,Zheng?Xin-you,Jiang?Biao,Fu?Ke-hong.Blue-violet organic electroluminescent devices based on exciton-confined structure[J].Journal of Shanghai University(English Edition),2005,9(2):172-175. |
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| Authors: | Zhang Ji-mei Jiang Xue-yin Zhang Zhi-lin Zhu Wen-qing Wu You-zhi Zheng Xin-you Jiang Biao Fu Ke-hong |
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| Institution: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai 201800, P.R.China
2. Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201800, P.R. China |
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| Abstract: | Three types of blue-violet light-emitting devices based on an excito n- confined structure have been prepared, in which different materials were used as emitting layers and hole-transporting layers. They had structures of ITO/CuPc/ NPB/CPB/TPBi/Alq 3/LiF/Al(D NC), ITO/CuPc/J03/CBP/TPBi/Alq 3/LiF/Al(D JC) and ITO /CuPc/J03/FNPD/TPBi/Alq 3/LiF/Al(D JF). Here copper phthaloc yan ine (CuPc) acted as hole-injecting layer(HIL), N,N-bis-(1-naphthyl)-N,N-di phenyl-1.1bipheny1-4-4-diamine(NPB) and J03 hole-transporting layers (HTLs) , 4,4'-dicarbazolyl-1,1'-biphenyl (CBP) and FNPD as emitting layers(EMLs), N, arylbenzimidazoles (TPBi) as hole-blocking layer(HBL), and tris(8-quinolinolat o) aluminium complex(Alq 3) as electron-transporting layer(ETL). TPBi applied her e is a good confinement to both charges and excitons, which make the devices emit blue-violet light or iginating from the emitter, CBP and FNPD. Their characteristics have also been i nvestigated. The result shows that the device D NC based on NPB/CBP has the best performance among the three devices. The excellence of D NC is attrib uted to the better hole-transporting ability of NPB as compared with J03, and t he better emitting ability of CBP as compared with FNPD, although the best match ing of energy levels is found in the hole-transporting layer and emitting layer of the device D JF. |
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| Keywords: | exciton-confined structure blue-violet emitting hole-transporting ability emitting ability |
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