Organic electroluminescent devices with improved stability
Organic electroluminescent devices with improved stability
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DOI:
10.1063/1.117151
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发表时间:
1996-10-07
影响因子:
4
通讯作者:
Tang, CW
中科院分区:
文献类型:
--
作者:
VanSlyke, SA;Chen, CH;Tang, CW
Highly stable organic electroluminescent devices based on vapor-deposited Alq thin films have been achieved. The improvement in stability is derived from several factors including: (1) a multilayer thin-film structure with a CuPc stabilized hole-injection contact, (2) a hole-transport diamine layer using a naphthyl-substituted benzidine derivative, and (3) an ac drive wave form. These emissive devices have shown an operational half-lifetime of about 4000 h from an initial luminance of 510 cd/m(2). (C) 1996 American Institute of Physics.