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Computational study of borophene/boron nitride (B/BN) interface as a promising gas sensor for industrial affiliated gasses
Physica E: Low-dimensional Systems and Nanostructures ( IF 3.3 ) Pub Date : 2021-02-24 , DOI: 10.1016/j.physe.2021.114692
Muhammad Isa Khan , Sana Hamid Aziz , Abdul Majid , Muhammad Rizwan

This study was planned to probe the adsorption properties of industrial affiliated gases CO, NO, CO2, NO2, and NH3 on the surface of Borophene/Boron Nitride (B/BN) interface for gas sensing applications. The investigations carried out using density functional theory (DFT) and involving the van der Waals dispersion revealed that all studied gas molecules except CO2 showed chemisorption behavior. Fascinatingly, the computed energies of adsorption are favourable than borophene as well as other reported 2D materials. The electronic properties are improved for the interface than the pristine borophene and the metallic character remained preserved after adsorption of the gases. Moreover, validation of stronger binding is done with the help of Hirshfeld charge analysis. The calculations exhibited significant change in the transmission for the interface when compared with the pristine interface. In this study, we analyzed the adsorption energies, adsorption configurations, and charge transfer, electronic density of states, transmission properties, vibrational frequencies, and effect of humidity of the mentioned systems. The outcomes of the work are expected to strengthen the plausibility of (B/BN) interface-based gas sensing device.



中文翻译:

硼苯/氮化硼(B / BN)界面作为工业附属气体的有前途的气体传感器的计算研究

计划进行这项研究,以探明工业附属气体CO,NO,CO 2,NO 2和NH 3在用于气体感测的Borophene /氮化硼(B / BN)界面的表面上的吸附特性使用密度泛函理论(DFT)进行的涉及范德华分散的研究表明,除CO 2以外,所有研究的气体分子表现出化学吸附行为。令人着迷的是,计算出的吸附能比硼烷以及其他报道的二维材料更有利。与原始的硼烷相比,界面的电子性能有所改善,并且在吸附气体后仍保留了金属特性。此外,借助Hirshfeld电荷分析可完成对更强结合力的验证。与原始接口相比,该计算显示接口的传输发生了显着变化。在这项研究中,我们分析了所述系统的吸附能,吸附构型和电荷转移,态的电子密度,传输特性,振动频率以及湿度的影响。

更新日期:2021-03-03
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