Document Type
Article
Publication Date
3-1-2016
Abstract
In this paper, we report our recent experimental findings on the enhancement of thermoelectric performance of C60 doped Bi0.5Sb1.5Te3 bulk alloys. Incorporation of a small amount of C60 significantly reduces the crystalline particle size and leads to closely packed nanostructure, whilst slightly improve the electric conductivity in the measured temperature range. In addition, a minimum thermal conductivity of 0.4 W/(mK) at 358 K was observed, which is identified to be caused by the strong lattice phonon scattering at grain boundaries, yielding a high figure-of-merit ZT = 1.47 ± 0.07 at 358 K. Our results demonstrate that the materials can be used for the development of advanced thermoelectrics.
Publication Source (Journal or Book title)
Materials Science and Engineering: B
First Page
36
Last Page
39
Recommended Citation
Wang, Z., Vemishetti, A., Ejembi, J., Wei, G., Zhang, B., Wang, L., Zhang, Y., Guo, S., Luo, J., Chepko, C., Dai, Q., Tang, J., & Zhao, G. (2016). High thermoelectric performance of fullerene doped Bi0.5Sb1.5Te3 alloys. Materials Science and Engineering: B, 205, 36-39. https://doi.org/10.1016/j.mseb.2015.12.001
