کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5351525 1503671 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Blue/green electroluminescence from a ZnO nanorods/p-GaN heterojunction light emitting diode under different reverse bias
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Blue/green electroluminescence from a ZnO nanorods/p-GaN heterojunction light emitting diode under different reverse bias
چکیده انگلیسی
Vertically aligned ZnO nanorods were directly grown on p-GaN film to form a ZnO nanorods/p-GaN heterojunction. Electroluminescence characteristics of the ZnO nanorods/p-GaN heterojunction light emitting diode (LED) operated at different reverse bias were investigated. Only green emission at around 519 nm could be observed at 3.5 V, and blue emission at around 468 nm gradually appeared with the increase of reverse bias. The color of the device could be turned from green (0.31, 0.39) to blue (0.16, 0.16) by varying the reverse bias voltages. The electroluminescence mechanism of the heterojunction LED was discussed in terms of interface defects and band diagram.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 293, 28 February 2014, Pages 225-228
نویسندگان
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