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Piezotronic spin and valley transistors based on monolayer MoS2
Nano Energy, Volume: 72, Start page: 104678
Swansea University Author: Lijie Li
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DOI (Published version): 10.1016/j.nanoen.2020.104678
Abstract
Piezotronics and piezo-phototronics based on the third generation semiconductors are two novel fields for low power consumption, self-powered technology and internet of things. Strain-induced piezoelectric field plays a key role to modulate not only charge-carrier transport but also quantum transpor...
Published in: | Nano Energy |
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ISSN: | 2211-2855 |
Published: |
Elsevier BV
2020
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Online Access: |
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URI: | https://cronfa.swan.ac.uk/Record/cronfa53793 |
Abstract: |
Piezotronics and piezo-phototronics based on the third generation semiconductors are two novel fields for low power consumption, self-powered technology and internet of things. Strain-induced piezoelectric field plays a key role to modulate not only charge-carrier transport but also quantum transport properties in piezoelectric semiconductors, especially for two-dimensional materials which can withstand large strain. In this paper, we theoretically study piezotronic effect on the modulation of spin and valley properties in single-layered MoS2. Spin- and valley-dependent conductance, electronic density distribution and polarization ratio are investigated by quantum transport calculation. Because of piezotronic effect, strain-gated spin and valley transistors have excellent quantum state selectivity using by strain. Our work provides not only piezotronic effect on spin and valley quantum states, but also a guidance for designing novel quantum piezotronic devices. |
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Keywords: |
piezotronics, quantum transport, monolayer MoS2 |
Start Page: |
104678 |