| Abstract Scope |
Transition metal chalcogenides perovskite (TMPCs), a novel class of perovskites with rich tunability in functionalities, are gaining increased attention for applications in electronic, photonic, and energy technologies. TMPCs have a general chemical formula of ABX3, where A is an alkaline earth metal (Ba, Sr ), B is a transition metal ( Ti, Zr ) and X is a chalcogen (S, Se). Though these materials have been explored for optoelectronic and photonic applications , their thermoelectric properties remain undiscovered. Although chalcogenides like tellurides and selenides have shown reasonably good thermoelectric performance determined by their figure of merit (ZT= α2σT/κ), these materials suffer from high cost, toxicity, high temperature instability etc. The sulphide based TMPCs being cost effective and environmentally benign can emerge as an alternative solution for novel low cost thermoelectrics. Furthermore, the rich tunability with respect to their structural diversity offers an opportunity to innovate desired functionalities for energy applications. |