Order-disorder transition-induced band nestification in AgBiSe<sub>2</sub>–CuBiSe<sub>2</sub> solid solutions for superior thermoelectric performance
Hanhwi Jang, Stanley Abbey, Woo Hyun Nam, Brakowaa Frimpong, Chien Viet Nguyen, Sung‐Jae Joo, Ho Sun Shin, Jae Yong Song, Eugene N. Cho, Moohyun Kim, Yeon Sik Jung, Min‐Wook Oh
Abstract
The AgBiSe<sub>2</sub>–CuBiSe<sub>2</sub> system shows band nestification at high temperatures, resulting in heavy DOS effective mass while preserving electron mobility.
Topics & Concepts
Effective mass (spring–mass system)Thermoelectric effectMaterials scienceElectronSolid solutionCondensed matter physicsOrder (exchange)PhysicsThermodynamicsQuantum mechanicsBusinessMetallurgyFinanceAdvanced Thermoelectric Materials and DevicesChalcogenide Semiconductor Thin FilmsThermal Radiation and Cooling Technologies