کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7839784 | 1505859 | 2018 | 76 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electroluminescence performance of the blue, white and green-red organic light emitting diodes treated by in-situ heating
ترجمه فارسی عنوان
عملکرد الکترو لومینسانس دیود های آبی رنگ آبی، سفید و سبز قرمز تحت درمان با حرارت در محل
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
White light phosphorescent organic light emitting diodes (W-PHOLED) together with the blue light (B-PHOLED) and green-red light phosphorescent OLED (GR-PHOLED) equipped with the same blue and green-red emission layer were fabricated, and remarkable in-situ heating effects on their electroluminescence (EL) performance were observed. For the B-PHOLED, the in-situ heating increased the peak power efficiency (PE) by more than 30% with the increasing heating temperature from the room temperature to 100â¯Â°C accompanying with negligible effects on the blue light color stability. However, the optimal in-situ heating temperature of 100â¯Â°C for B-PHOLED was not beneficial to the PE of the W-PHOLED, but greatly facilitated the white light color stability. Such opposite impact on the W-PHOLEDs PE and color stability might be ascribed to the effects of the in-situ heating on the organic materials inter-diffusion and excitons decaying dynamic. The GR-PHOLED revealed the similar PE dependence on the in-situ heating as those of the W-PHOLED as well as the deteriorated color stability upon in-situ heating. The mechanism responsible for those characteristic temperature dependence of the EL performance was investigated focusing on the surface morphology related carrier transportation and carriers mobility related excitons decaying.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 203, November 2018, Pages 554-567
Journal: Journal of Luminescence - Volume 203, November 2018, Pages 554-567
نویسندگان
Haichuan Mu, Yongxin Jiang, Haifen Xie,