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Analysis and application of zigzag phosphorene nanotube as gas nanosensor
Applied Physics A ( IF 2.7 ) Pub Date : 2021-05-15 , DOI: 10.1007/s00339-021-04513-w
Hossein Bahmani Kazerooni , Rahim Ghayour , Farshad Pesaran

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 (IV) characteristics of the proposed structures are calculated via the non-equilibrium Green’s function formula. Based on IV 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.



中文翻译:

之字形磷光纳米管作为气体纳米传感器的分析与应用

近来,单层黑色磷(磷)由于其相当大的电子性能而引起了极大的关注。磷光体的非凡特性(包括高电荷载流子迁移率和半导体行为)为其在纳米电子学,纳米传感和2D材料工程中的应用打开了视野。我们研究了某些气体分子(例如CO,CO 2,O 2,NH和NH 3)对之字形磷光纳米管(ZPNT)行为的影响。首先,我们介绍了掺有硼和氮原子的ZPNT的气敏特性,然后,我们提出了一种新的ZPNT结构来修改其气敏应用。另外,电流-电压(IV)结构的特性是通过非平衡格林函数公式计算的。根据IV数据,我们确定存在不同气体分子时ZPNT结构的灵敏度。根据计算结果,提出的B-ZPNT,提出的B-ZPNT和提出的N-ZPNT分别对CO 2,CO和NH气体分子敏感。

更新日期:2021-05-15
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