2002年2月14日
Metallophthalocyanine films as hole-transport layer in organic light-emitting devices
Synthetic Metals
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- 巻
- 126
- 号
- 2-3
- 開始ページ
- 331
- 終了ページ
- 335
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/S0379-6779(01)00580-X
Electroluminescence (EL) characteristics of the double-MPc-layered devices consisting of ITO/MPc1/MPc2/Alq3/Mg-Ag were investigated, where MPc1 and MPc2 represent two metallophthalocyanines and Alq3 stands for tris(8-quinolinolato)aluminum(III). A compatible double-MPc-layered structure led to a decreased hole-injection barrier at the ITO/MPc1 interface and an increased electron-blocking ability of the MPc2 layer in the device. The EL efficiency of the device was improved further by using a 4,4′-bis(m-tolyphenylamino) biphenyl (TPD) layer as an additional hole-transport layer due to its good electron-blocking ability. For the double-MPc-layered devices with a TPD layer, the EL performances were dependent primarily on the electronic structure of ITO/MPc1 interface rather than that of MPc1/MPc2 or MPc2/TPD interface. © 2002 Elsevier Science B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/S0379-6779(01)00580-X
- ISSN : 0379-6779
- CiNii Articles ID : 80012912008
- SCOPUS ID : 0037074962