Analysis and application of zigzag phosphorene nanotube as gas nanosensor
| Autor: | Hossein Bahmani Kazerooni, Farshad Pesaran, Rahim Ghayour |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Nanotube Materials science Doping 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology 01 natural sciences Phosphorene chemistry.chemical_compound Zigzag Nanoelectronics chemistry Nanosensor Chemical physics 0103 physical sciences Molecule General Materials Science Density functional theory 0210 nano-technology |
| Zdroj: | Applied Physics A. 127 |
| ISSN: | 1432-0630 0947-8396 |
| Popis: | Recently, single-layer black phosphorous (phosphorene) has engrossed significant attention because of its considerable electronic properties. The remarkable properties of phosphorene, including high charge carrier mobility and semiconducting behavior, opened a view of its applications in nanoelectronics, nanosensing and 2D-material engineering. We investigate the effects of some gas molecules such as CO, CO2, O2, NH and NH3 on the zigzag phosphorene nanotube (ZPNT) behavior. First, we present the gas sensing properties of ZPNT doped with Boron and Nitrogen atoms, and then, we propose a new ZPNT structure to modify its gas sensing applications. In addition, the current–voltage (I–V) characteristics of the proposed structures are calculated via the non-equilibrium Green’s function formula. Based on I–V data, we determine the sensitivity of the ZPNT structures in presence of different gases molecules. According to the calculated results, the B-ZPNT, B-ZPNT proposed and N-ZPNT proposed are sensitive to CO2, CO and NH gas molecules, respectively. |
| Databáze: | OpenAIRE |
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