【摘 要】
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Organic light-emitting devices (OLEDs) with enhanced brightness and efficiency were developed using an LiFdoped organic layer as an electron-injecting layer bes
【机 构】
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Department of Electronics Engineering & National Laboratory of Integrated Optoelectronics, Jilin Uni
论文部分内容阅读
Organic light-emitting devices (OLEDs) with enhanced brightness and efficiency were developed using an LiFdoped organic layer as an electron-injecting layer besides the aluminium cathode. The typical device structure is glass substrate/indium-tin-oxide/N, N′-bis (3-methyphenyl)-N, N-diphenylbenzidize/8-tris-hydroxyquinoline aluminium (Alq3) /LiF-doped Alq3/AI. An optimized device with an LiF-doped Alq3 layer showed brightness over 15300 cd/m2, while the device without the LiF-doped Alq3 layer exhibited only 3200 cd/m2, also, the luminance efficiency of the former was 4-5 times as that of the latter. This is another way to improve the OLEDs performance, especially in applications of OLEDs with a large active area.
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