Thermal transport in two-dimensional C3N/C2N superlattices: A molecular dynamics approach
نویسندگان
چکیده
Nanostructured superlattices have been the focus of many researchers due to their physical and manipulatable properties. They aim find promising materials for new electronic thermoelectric devices. In present study, we investigate thermal conductivity two-dimensional (2D) C3N/ C2N using non-equilibrium molecular dynamics. We analyze dependence on total length, temperature, temperature difference between baths superlattices. The minimum phonon mean free path at a superlattice period 5.2 nm are 23.2 W/m.K 24.7 nm, respectively. Our results show that specific as increases, number interfaces decreases, thus resistance effective system increases. found long lengths (Lx >80 nm), high-frequency low-wavelength phonons scattered throughout interfaces, while short lengths, there is wave interference reduces conductivity. combination these two effects, i.e., interface scattering, reason existence in
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ژورنال
عنوان ژورنال: International Journal of Heat and Mass Transfer
سال: 2021
ISSN: ['1879-2189', '0017-9310']
DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2021.121561