کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840012 | 1505861 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving the stability and efficiency of perovskite light-emitting diodes via an insulating layer of polyethylenimine ethoxylated
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The highly stable and efficient perovskite light-emitting diodes (PeLEDs) via applying an insulating layer of polyethylenimine ethoxylated (PEIE) are fabricated. The PeLED consisted of an ultrathin PEIE layer exhibits 90.6% of initial maximum luminance after 2â¯h and can still emit light after 8 days. Meanwhile, by realizing the morphology improvement of MAPbBr3 and more balanced charge injection of perovskite film, a high efficiency PeLEDs with a maximum luminance of 914.5â¯cd/m2 and a maximum current efficiency of 0.28â¯cd/A at a bias of 8.1â¯V are achieved. This work not only proposes a concise and effective approach for the significant improvement of PeLEDs stability, but also opens a high potential route for the practical application of high efficiency PeLEDs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 201, September 2018, Pages 359-363
Journal: Journal of Luminescence - Volume 201, September 2018, Pages 359-363
نویسندگان
Zhan Gao, Yifan Zheng, Zijun Wang, Junsheng Yu,