کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7142961 | 1462055 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas sensor based on MoS2 monolayer
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Gas sensor based on MoS2 monolayer Gas sensor based on MoS2 monolayer](/preview/png/7142961.png)
چکیده انگلیسی
We investigate the electronic and transport properties of a MoS2 monolayer transducer with some simple gas molecules, such as CO, CO2 and NO to explore theoretically sensing capabilities of this monolayer. The calculations are performed using nonequilibrium Green's function (NEGF) formalism based on the density functional theory (DFT) as implemented in the TranSIESTA code. Exposure to the NO gas molecule influences dramatically the electron transmission and the current-voltage characteristics of the MoS2 monolayer. The results predict that the MoS2 monolayer transducer can monitor the NO gas molecule to 104 order among these molecules between ±0.9 V bias window using the current-voltage characteristic with high sensitivity and selectivity. Here, post-processed analyses predict that the sensing mechanism is based on the charge transfer, which it in turn causes remarkable electrostatic gating to occur for the NO adsorbate. The numerical results may be useful to engineer and design gas sensor based on the MoS2 monolayer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 236, 29 November 2016, Pages 378-385
Journal: Sensors and Actuators B: Chemical - Volume 236, 29 November 2016, Pages 378-385
نویسندگان
Aliasghar Shokri, Nadia Salami,