Energy-band schemes of highly stable organic electroluminescent devices

被引：53

作者：

Sano, T ^{[1
]}

Hamada, Y ^{[1
]}

Shibata, K ^{[1
]}

机构：

[1] Sanyo Elect Co Ltd, New Mat Res Ctr, Hirakata, Osaka 573, Japan

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 1998年 / 4卷 / 01期

关键词：

dope; electroluminescence; fluorescence; ionization potential; organic EL; organic light-emitting diode; rubrene;

D O I：

10.1109/2944.669462

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Host-guest systems in organic electroluminescent (EL) devices have been studied. Organic EL cells doped with blue to red guest emitters were prepared and their characteristics and the energy bands of the materials were measured. A green EL cell doped with 2,3-quinacridone showed a maximum efficiency of 18.1 Im/W. A yellow EL cell doped with 5,6,11,12-tetraphenylnaphthacene (rubrene) showed a maximum efficiency of 14.4 Im/W and a half-decay time of 25000 h from 130 cd/m(2), The energy-band schemes of those cells were analyzed and requirements for the scheme and a guest emitter are discussed.

引用

页码：34 / 39

页数：6

共 16 条

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