@article{Wu2021, 
author = {Xiangshui Wu and Qiqi Tao and Da Li and Qilang Wang and Xiaoyan Zhang and Huile Jin and Jun Li and Shun Wang and Xiangfan Xu},
title = {Unprecedently low thermal conductivity of unique tellurium nanoribbons},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {12},
pages = {4725-4731},
keywords = {tellurium nanoribbons, thickness-dependent, thermal conductivity, linear relationship, phonon-surface scattering},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3414-7},
doi = {10.1007/s12274-021-3414-7},
abstract = {Tellurene, probably one of the most promising two-dimensional (2D) system in the thermoelectric materials, displays ultra-low thermal conductivity. However, a linear thickness-dependent thermal conductivity of unique tellurium nanoribbons in this study reveals that unprecedently low thermal conductivity can be achieved via well-defined nanostructures of low-dimensional tellurium instead of pursuing dimension-reduced 2D tellurene. For thinnest tellurium nanoribbon with thickness of 144 nm, the thermal conductivity is only ~1.88 ± 0.22 W·m−1·K−1 at room temperature. It's a dramatic decrease (45%), compared with the well-annealed high-purity bulk tellurium. To be more specific, an expected thermal conductivity of tellurium nanoribbons is even lower than that of 2D tellurene, as a result of strong phonon-surface scattering. We have faith in low-dimensional tellurium in which the thermoelectric performance could realize further breakthrough.}
}