High-performance thermoelectric silver selenide thin films cation exchanged from a copper selenide template.

Over the past decade, AgSe has attracted increasing attention due to its potentially excellent thermoelectric (TE) performance as an n-type semiconductor. It has been considered a promising alternative to Bi-Te alloys and other commonly used yet toxic and/or expensive TE materials. To optimize the TE performance of AgSe, recent research has focused on fabricating nanosized AgSe.