کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5348363 | 1388073 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of anodes with tunable work function for improving organic light-emitting diode performance
ترجمه فارسی عنوان
استفاده از آند با قابلیت کار قابل تنظیم برای بهبود عملکرد نور دیود آلی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
The effect of reactive gases-oxygen and hydrogen-on the tunable work function of Al-doped ZnO (AZO) films was studied. An increase in the work function with an increase in the oxygen flow rate was mainly interpreted as reflecting a decrease in the carrier concentration, which was attributed to the filling of oxygen vacancies. However, a decrease in the carrier concentration would result in the resistivity increasing sharply. This article presents a new concept for improving the performance of organic light-emitting diodes (OLEDs) through easy and effective hole injection from a multilayer AZO anode to the organic layer. A bilayer AZO film prepared using a tunable work function technique was used to modify the surface of AZO anodes and to ensure that the anodes had low resistivity. The AZO anode stacked with high-work-function AZO films, similar to hole transport buffer layers, had a low turn-on voltage of 2.89Â V, and its luminance efficiency and power efficiency were 5.01% and 6.1% greater than those of tin-doped indium oxide anodes used in OLEDs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 357, Part A, 1 December 2015, Pages 539-542
Journal: Applied Surface Science - Volume 357, Part A, 1 December 2015, Pages 539-542
نویسندگان
Meng-Chi Li, Yen-Ming Lo, Shih-Fang Liao, Hsi-Chao Chen, Hsin-Hua Chang, Cheng-Chung Lee, Chien-Cheng Kuo,