4 papers
Piezoelectric conversion in TMDCs Heterostructure Atomic Layers
Sheng Yu, Tikaram Neupane, Dulitha Jayakodige +1
Two-dimensional heterostructure of WSe2/MoS2 atomic layers has unique piezoelectric characteristics which depends on the number of atomic layer, stacking type, and interlayer inter…
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…