| Autor: |
Liu, Q. H., Shi, H. L., Han, Q. Z., Yang, J., Zhao, Y. H., Gong, L. J., Yang, H., Cheng, R. S., Jiang, Z. T. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 11/28/2024, Vol. 136 Issue 20, p1-13, 13p |
| Abstrakt: |
Aiming at exploring whether the Janus structure is beneficial to improving the thermoelectric (TE) performance, we systematically study the TE properties of the α -Se-monolayer-based Janus structures including α - SSe 2 and α - TeSe 2 monolayers. In comparison with the semiconducting α -Se monolayer, the Janus α - SSe 2 and α - TeSe 2 monolayers are still kept to be indirect semiconductors but with suppressed energy bandgaps. Moreover, the phononic thermal conductance will be suppressed with other parameters like Seebeck coefficients, electrical conductances, and electronic thermal conductances being changed correspondingly. The TE figures of merit Z T s of the Janus α - SSe 2 and α - TeSe 2 monolayers are always greater than that of the α -Se monolayer, indicating that the Janus structure should be a potential scheme used to improve the TE performance of materials. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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