TY - JOUR
T1 - Strain-modulation of electronic and optical properties of two-dimensional GeTe/SnSe van der Waals heterostructure
AU - Zhao, Weilin
AU - Du, Jingxue
AU - Shi, Lijie
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/12/28
Y1 - 2024/12/28
N2 - By first-principles method, the electronic and optical properties of stable GeTe/SnSe van der Waals heterostructure under strain have been investigated. By applying uniaxial and biaxial strain, the bandgap and band alignment of this heterostructure can be controlled, and semiconductor-metal phase transition is observed. By applying biaxial strain, the optical absorption of the heterostructure can be improved, and the power conversion efficiency can be improved from 13% to 19%. The easily controlled electronic properties and good optical properties make GeTe/SnSe van der Waals heterostructure to be a promising material in optoelectronic and solar energy conversion devices.
AB - By first-principles method, the electronic and optical properties of stable GeTe/SnSe van der Waals heterostructure under strain have been investigated. By applying uniaxial and biaxial strain, the bandgap and band alignment of this heterostructure can be controlled, and semiconductor-metal phase transition is observed. By applying biaxial strain, the optical absorption of the heterostructure can be improved, and the power conversion efficiency can be improved from 13% to 19%. The easily controlled electronic properties and good optical properties make GeTe/SnSe van der Waals heterostructure to be a promising material in optoelectronic and solar energy conversion devices.
KW - Electronic properties
KW - First-principles method
KW - Heterostructure
KW - Optical properties
KW - Strain
UR - https://www.scopus.com/pages/publications/85209389520
U2 - 10.1016/j.physleta.2024.130046
DO - 10.1016/j.physleta.2024.130046
M3 - Article
AN - SCOPUS:85209389520
SN - 0375-9601
VL - 528
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
M1 - 130046
ER -