Quantum confined acceptors and donors in InSe nanosheets
- School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD (United Kingdom)
- Institute for Problems of Materials Science, The National Academy of Sciences of Ukraine, Chernivtsi 58001 (Ukraine)
- Nottingham Nanotechnology and Nanoscience Centre, The University of Nottingham, Nottingham NG7 2RD (United Kingdom)
- Physics Department, Lancaster University, Lancaster LA1 4YB (United Kingdom)
We report on the radiative recombination of photo-excited carriers bound at native donors and acceptors in exfoliated nanoflakes of nominally undoped rhombohedral γ-polytype InSe. The binding energies of these states are found to increase with the decrease in flake thickness, L. We model their dependence on L using a two-dimensional hydrogenic model for impurities and show that they are strongly sensitive to the position of the impurities within the nanolayer.
- OSTI ID:
- 22403373
- Journal Information:
- Applied Physics Letters, Vol. 105, Issue 22; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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