Thermoelectric Properties of Reduced Graphene Oxide/Bi 2 Te 3 Nanocomposites
Yong Du, Jia Li, Jiayue Xu and 1 more
Energies · 2019
doi:10.3390/en12122430 (opens in a new tab)
We email you when a new notice or a question about this paper appears.
Abstract
Reduced graphene oxide (rGO)/Bi<sub>2</sub>Te<sub>3</sub> nanocomposite powders with different contents of rGO have been synthesized by a one-step <i>in-situ</i> reductive method. Then, rGO/Bi<sub>2</sub>Te<sub>3</sub> nanocomposite bulk materials were fabricated by a hot-pressing process. The effect of rGO contents on the composition, microstructure, TE properties, and carrier transportation of the nanocomposite bulk materials has been investigated. All the composite bulk materials show negative Seebeck coefficient, indicating n-type conduction. The electrical conductivity for all the rGO/Bi<sub>2</sub>Te<sub>3</sub> nanocomposite bulk materials decreased with increasing measurement temperature from 25 °C to 300 °C, while the absolute value of Seebeck coefficient first increased and then decreased. As a result, the power factor of the bulk materials first increased and then decreased, and a power factor of 1340 μWm<sup>−1</sup>K<sup>−2</sup> was achieved for the nanocomposite bulk materials with 0.25 wt% rGO at 150 °C.
Abstract licence: CC BY
Reads
Read by people on this page
None yet.
Checked or read by AI through naulon
None yet.
A person counts once a day per paper. We keep no cookie and no address: a reader is a hash that changes every day. Any month under five reads shows no number.
Are you an author?
Is this your paper?
Claim it to add your note and be paid when agents cite it. Free.