کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5364968 | 1388323 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Exciplex emission in the blend of two blue luminescent materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Organic light-emitting diodes (OLEDs) based on the blend of two blue luminescent materials N,Nâ²-bis(1-naphthyl)-N,Nâ²-diphenyl-1,1â²-diphenyl-4,4â²-diamine (NPB) and 2-(4-biphenylyl)-5(4-tert-butyl-phenyl)-1,3,4-oxadiazole (PBD) were fabricated. The electroluminescence (EL) spectra of this device showed a new emission that is different from their intrinsic exciton emission. Compared with the photoluminescence (PL) spectra of single layer NPB and PBD, respectively, there was an apparent red shift in that of their blend. Thus the exciplex formation in the blend can be concluded due to the similar emission in both PL and EL spectra. The exciplex formation process and the effect of applied voltage were analyzed by Gaussian fitting.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 254, Issue 11, 30 March 2008, Pages 3548-3552
Journal: Applied Surface Science - Volume 254, Issue 11, 30 March 2008, Pages 3548-3552
نویسندگان
Dewei Zhao, Fujun Zhang, Chao Xu, Jianyuan Sun, Shufang Song, Zheng Xu, Xiaowei Sun,