کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5461551 | 1516202 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fast-response solar-blind ultraviolet photodetector with a graphene/β-Ga2O3/graphene hybrid structure
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A high performance vertical solar-blind ultraviolet photodetector based on β-Ga2O3 thin films sandwiched between two graphene sheets has been fabricated by laser molecular beam epitaxy. The photodetector exhibits obvious rectifying characteristics and excellent solar-blind UV photoresponse. The fast rising and decay time of our detector are 0.96 s and 0.81 s under 254 nm illumination. The ratio of I254/Idark is up to 82.88 and the responsivity of graphene/β-Ga2O3/graphene photodetector increases to 9.66 A/W at 10 V bias. Our results suggest that this performance is attributed to the existence of Schottky barriers between β-Ga2O3 and two graphene sheets. The combination of Ga2O3 and graphene might open up new possibilities for future UV integrated optoelectronic devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 692, 25 January 2017, Pages 634-638
Journal: Journal of Alloys and Compounds - Volume 692, 25 January 2017, Pages 634-638
نویسندگان
Meilin Ai, Daoyou Guo, Yingyu Qu, Wei Cui, Zhenping Wu, Peigang Li, Linghong Li, Weihua Tang,