Effect of copper concentration and sulfur vacancies on electronic properties of MoS2 monolayer: a computational study

2021 ◽  
Vol 27 (7) ◽  
Author(s):  
Muhammad Tayyab ◽  
Akhtar Hussain ◽  
Waqar Adil Syed ◽  
Shafqat Nabi ◽  
Qurat ul Ain Asif
2019 ◽  
Vol 43 (15) ◽  
pp. 5766-5772 ◽  
Author(s):  
Xin Wen ◽  
Shansheng Yu ◽  
Yongcheng Wang ◽  
Yuejie Liu ◽  
Hongxia Wang ◽  
...  

The introduction of heteroatom into MoS2 nanosheet can effectively tune the electronic properties and enhance its chemical reactivity towards small molecules, thus greatly widening their applications.


Author(s):  
Dongxu Jiao ◽  
Yu Tian ◽  
Yue-jie Liu ◽  
Qinghai Cai ◽  
Jing-Xiang Zhao

The electroreduction of CO (COER) into valuable carbon-based chemicals is an attractive alternative to the traditional Fischer–Tropsch process, in which the development of electrocatalysts with high activity and high selectivity...


2021 ◽  
Author(s):  
Priya kaushal ◽  
Tarun Chaudhary ◽  
Gargi Khanna

Abstract The present work is based on the computational study of MoS2 monolayer and effect of tensile strain on its atomic level structure. The bandgap for MoS2 monolayer, defected MoS2 monolayer and Silicon-doped monolayer are 1.82 eV (direct bandgap), 0.04 (indirect bandgap) and 1.25eV (indirect bandgap), respectively. The impact of tensile strain (0-0.7%) on the bandgap and effective mass of charge carriers of these three MoS2 structure has been investigated. The bandgap decrease of 5.76%, 31.86% and 6.03% has been observed in the three structures for biaxial strain while the impact of uniaxial strain is quite low. The impact of higher temperature on the bandgap under biaxial tensile strain has been also analyzed in this paper. These observations are extremely important for 2D material-based research for electronic applications.


2021 ◽  
Vol 23 (36) ◽  
pp. 20553-20559
Author(s):  
Han Wang ◽  
Xiao Wang ◽  
Da Li

We performed a systematic study on the defects in PbI2 of both 1T and 1H phases by DFT calculations. The stability at the neutral and charged states was calculated. The impact of the defects on the electronic properties was also discussed.


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