کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7135396 | 1461862 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of high sensitive and fast response MIR photodetector based on a new hybrid graphene structure
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fabrication of high sensitive and fast response MIR photodetector based on a new hybrid graphene structure Fabrication of high sensitive and fast response MIR photodetector based on a new hybrid graphene structure](/preview/png/7135396.png)
چکیده انگلیسی
Electronic structure and morphology variation in a novel synthesized surface modified graphene from both experimental results and calculations based on ab-initio density functional theory results has been presented in this paper. The results indicate that modification of surface of graphene using organic molecule (thiosemicarbazide) causes sheet strain which results morphology and band structure variations. Therefore, tuning of the graphene band gap could be achieved by surface modification using organic molecule which is required in electronic device applications. Here, modified graphene is used as Mid IR detector and the results are compared with unmodified graphene-based detector. Improved detection parameters such as fast response time (three orders of magnitude faster than those reported in the literature), high sensitivity, low dark current and electrical stability are achievable for modified graphene-based fabricated detectors. These improvements are obtained because of introducing electron trapping centres and creating a bandgap in graphene through band structure engineering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 238, 1 February 2016, Pages 150-157
Journal: Sensors and Actuators A: Physical - Volume 238, 1 February 2016, Pages 150-157
نویسندگان
Mehrdad Siahsar, Farnaz Jabbarzadeh, Mahboubeh Dolatyari, Ghasem Rostami, Ali Rostami,