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Tunability of the Superconductivity of NbSe 2 Films Grown by Two-Step Vapor Deposition.
- Source :
- Molecules; Feb2023, Vol. 28 Issue 3, p1059, 9p
- Publication Year :
- 2023
-
Abstract
- Layered metallic transition-metal dichalcogenides (TMDCs) are ideal platforms for exploring their fascinating electronic properties at two-dimensional limits, such as their charge density wave (CDW) and superconductivity. Therefore, developing ways to improve the crystallization quality of TMDCs is urgently needed. Here we report superconductively tunable NbSe<subscript>2</subscript> grown by a two-step vapor deposition method. By optimizing the sputtering conditions, superconducting NbSe<subscript>2</subscript> films were prepared from highly crystalline Nb films. The bilayer NbSe<subscript>2</subscript> films showed a superconducting transition temperature that was up to 3.1 K. Similar to the salt-assisted chemical vapor deposition (CVD) method, superconducting monolayer NbSe<subscript>2</subscript> crystals were also grown from a selenide precursor, and the growth strategy is suitable for many other TMDCs. Our growth method not only provides a way to improve the crystalline quality of TMDC films, but also gives new insight into the growth of monolayer TMDCs. It holds promise for exploring two-dimensional TMDCs in fundamental research and device applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 28
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Molecules
- Publication Type :
- Academic Journal
- Accession number :
- 161857723
- Full Text :
- https://doi.org/10.3390/molecules28031059