Vacancy controlled n–p conduction type transition in CuAgSe with superior thermoelectric performance
Yu Tian, Suiting Ning, Tingting Zhang, Xiangbin Chen, Qian Liu, N. D. Qi, Zhiquan Chen, Xianli Su, Xinfeng Tang
Abstract
The conduction type of CuAgSe can be tuned by chemical composition. The positron technique indicates that n–p transition is controlled by vacancy.
Topics & Concepts
Vacancy defectThermoelectric effectThermal conductionMaterials scienceType (biology)Condensed matter physicsThermodynamicsPhysicsComposite materialBiologyEcologyAdvanced Thermoelectric Materials and DevicesChalcogenide Semiconductor Thin FilmsHeusler alloys: electronic and magnetic properties