Thermoelectric properties of SnSe nanoribbons: A theoretical aspect
Document Type
Article
Publication Date
3-1-2016
Abstract
© 2016 IOP Publishing Ltd. Bulk SnSe is reported to be an excellent thermoelectric material at high temperatures. We now present the results on thermoelectric properties of nanoribbons of SnSe of variable widths obtained using density functional theory coupled with semi-classical Boltzmann theory. The calculated results find armchair nanoribbons of width ≤ 47 Å to be semiconducting and zigzag nanoribbons of width.52 Å to be metallic. A relatively high Seebeck coefficient (≈1720 μVK-1) and low thermal conductivity was calculated for the armchair nanoribbon of 6 Å width, while a large relaxation time and small effective mass was obtained for the armchair nanoribbon of 47 Åwidth. The calculated results suggest that patterning SnSe into nanoribbons may provide thermoelectric performance that is similar to the monolayer and low-temperature bulk phases of SnSe.
Publication Title
Materials Research Express
Recommended Citation
Tyagi, K.,
Waters, K.,
Wang, G.,
Gahtori, B.,
Haranath, D.,
&
Pandey, R.
(2016).
Thermoelectric properties of SnSe nanoribbons: A theoretical aspect.
Materials Research Express,
3(3).
http://doi.org/10.1088/2053-1591/3/3/035013
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9738