4 papers
Spin-resolved Visible Optical Spectra and Electronic Characteristics of Defect-mediated Hexagonal Boron Nitride Monolayer
Sheng Yu, Bagher Tabibi, Qiliang Li +1
The defect-mediated hexagonal boron nitride (hBN) supercell display the visible optical spectra and electronic characteristics. The defects in the hBN supercell include the atomic…
A Transition of Saturable and Reverse Saturable Absorption between Monolayer and Bilayer/Multilayer of TMDCs
Tikaram Neupane, Dulitha Jayakodige, Sheng Yu
The nonlinear absorption of two-dimensional molybdenum disulfide was analyzed using the Z-scan technique. Sample size corresponding to a number of layer determines the band gap in…
First principle study on the transition of electronic, mechanic and piezoelectric property of hexagonal Boron Nitride nanotube
Sheng Yu, Quinton Rice, Tikaram Neupane +3
One-dimensional nanostructures such as nanowires and nanotubes are stimulating tremendous interest due to their structural, electronic and magnetic properties. In this study, the f…
Enhanced piezoelectricity and electronic band structure transition assisted by atomic shift in MoS2 monolayer
Sheng Yu, Quinton Rice, Tikaram Neupane +2
Piezoelectricity appears in the inversion asymmetric crystal that converts mechanical deformational force to electricity. Two-dimensional transition metal dichalcolgenide (TMDC) mo…