Jump to main content
Jump to site search


Thermoelectric Bi2Te3-xSex alloys for efficient thermal to electrical energy conversion

Abstract

Eco-friendly renewable energy conversion methods are constantly investigated. Thermoelectric devices, directly converting thermal into electrical energy, show a high potential for utilizing waste heat into useful electricity. Yet enhancing of their efficiency is a challenging task. Below 300°C, Bi2Te3-xSex thermoelectric alloys are considered as the mostly efficient for such applications. In the current research by controlling the specific compositions and the synthesis route, optimizing the electron doping level and minimizing the lattice thermal conductivity values, very high thermoelectric figure of merit values were obtained beyond ~170°C. It is shown that upon combining of the currently reported Bi2Te2.4Se0.6 and Bi2Te1.5Se1.5 alloys with previously reported highly efficient p- and n- type Bi2Te3 based compositions, a remarkable thermoelectric efficiency of ~9.6% can be obtained for a relatively low temperature difference of 250°C.

Back to tab navigation

Publication details

The article was received on 10 Sep 2017, accepted on 26 Dec 2017 and first published on 02 Jan 2018


Article type: Paper
DOI: 10.1039/C7CP06176E
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
  •   Request permissions

    Thermoelectric Bi2Te3-xSex alloys for efficient thermal to electrical energy conversion

    O. Meroz and Y. Gelbstein, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C7CP06176E

Search articles by author

Spotlight

Advertisements