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Two-dimensional van der Waals heterostructure of indium selenide/antimonene: Efficient carrier separation
- Source :
- Chemical Physics Letters. 727:50-54
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Indium selenide (InSe) is a promising two-dimensional photodetector material. However, the photogenerated electron-hole pairs are easy to recombine in simplex InSe semiconductor. Here, we design InSe-based van der Waals heterostructure, InSe/antimonene (β-Sb), based on first-principles. InSe/β-Sb heterostructure possesses intrinsic type-II electronic structure. Simultaneously, the work function of InSe (β-Sb) layer is −5.7 eV (−4.5 eV) which also promotes electrons transfer. In addition, the good optical absorption performance of InSe and β-Sb sublayer is preserved in the heterostructure. Moreover, different stacking mode between InSe/β-Sb does not affect the efficient carrier separation which is convenient to the application of optoelectronics.
- Subjects :
- Materials science
business.industry
Stacking
General Physics and Astronomy
chemistry.chemical_element
Heterojunction
02 engineering and technology
Electronic structure
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
symbols.namesake
chemistry.chemical_compound
Semiconductor
chemistry
Selenide
symbols
Optoelectronics
Work function
Physical and Theoretical Chemistry
van der Waals force
0210 nano-technology
business
Indium
Subjects
Details
- ISSN :
- 00092614
- Volume :
- 727
- Database :
- OpenAIRE
- Journal :
- Chemical Physics Letters
- Accession number :
- edsair.doi...........2942cad53aafe974ed9e60ccbf9f4e94