ACADSTAFF UGM
| Title | : | Thermoelectric Properties of Monolayer and Bilayer Buckled XTe (X = Ge, Sn, and Pb) |
| Author | : |
Patricia Lubis (1) Nadya Amalia (2) Sasfan Arman Wella (3) Sholihun, S.Si., M.Sc., Ph.D.Sc. (4) |
| Date | : | 2 2022 |
| Keyword | : | buckled phase, group IV-telluride, honeycomb lattice, thermoelectrics, two-dimensional materials. buckled phase, group IV-telluride, honeycomb lattice, thermoelectrics, two-dimensional materials. |
| Abstract | : | Lowering the dimension of 3D materials, so that the connement length L of the low-dimensional material is less than the thermal wavelength of its bulk phase, is expected to be a sucient way to enhance their thermoelectric performances. Using density functional theory incorporating the linearized Boltzmann transport equation with a constant relaxation time approximation, we calculate the electronic and thermoelectric properties of monolayer and bilayer XTe (X = Ge, Sn, and Pb). It is shown that the ideal gure of merit of monolayer XTe is larger than that of bilayer XTe, suggesting the importance of downsizing the bulk XTe up to single-layer thickness to have a better thermoelectric performance. The n-type monolayer buckled SnTe is predicted to exhibit remarkable thermoelectric performance with ZT > 1:6 at T = 900 K compared to other monolayer and bilayer XTe. |
| Group of Knowledge | : | Fisika |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
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