کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7940099 | 1398534 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of substrate heating and annealing on the properties and photoresponse of manganese doped zinc oxide thin films
ترجمه فارسی عنوان
تأثیر گرمای سوبسترا و آنیلینگ بر خواص و خواص نوری فیلمهای نازک روی دی اکسید منگنز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
The structural and optical properties of manganese doped zinc oxide thin films deposited at different substrate temperatures and annealing conditions have been studied. Further, the UV light sensing properties of the fabricated thin film devices have been carried out. The 3% Mn doped ZnO (MZO) films were deposited by RF magnetron sputtering. The as-prepared film, deposited without substrate heating, shows the polycrystalline nature with under-developed grains, which develops well-defined crystal boundaries after annealing. On the other hand, the films deposited at 700 °C and annealed at 700 °C show single crystalline c-axis orientated growth. Notably, there are changes observed in the band gap and photoluminescence of the films subject to different deposition and annealing conditions. The photoresponse of the MZO thin film devices shows responsivity varying from 2.5 Ã 10â2 to 7.9 A/W, detectivity from 1.6 Ã 1010 to 37.8 Ã 1010 Jones and sensitivity from 4.7 to 15.4% under the UV light. Markedly, the films show the response times varying from â¼0.1 to â¼28 s and the recovery times varying between â¼0.1 and â¼120 s. These findings demonstrate the influence of structural and optical properties brought out by the substrate heating and annealing of 3% Mn doped ZnO films on the photoresponse of devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 110, October 2017, Pages 57-67
Journal: Superlattices and Microstructures - Volume 110, October 2017, Pages 57-67
نویسندگان
Ravishankar Sugumar, S. Angappane,