Institute of Innovative Research, 
Tokyo Institute of Technology.

2022.03.17

Press Release

30-fold Enhancement of Thermoelectric Performance in Polycrystalline Tin Selenide

Tin selenide (SnSe) is a potential thermoelectric material, but needs complicated synthesis processes to realize a high conversion efficiency in its polycrystal form, which is required for practical applications. Tokyo Tech scientists demonstrate that the simple method of tellurium ion substitution can improve electronic and thermal properties simultaneously, resulting in a 30-fold performance enhancement. This result points to a new way for their practical applications in high-efficiency thermoelectric energy conversion.