Structural modulation and resonant level enable high thermoelectric performance of GeTe in the mid-to-low temperature range
Guangjie Wu, Zhe Guo, Ruoyu Wang, Xiaojian Tan, Chen Cui, Peng Sun, Haoyang Hu, Jiehua Wu, Guoqiang Liu, Jun Jiang
Abstract
A peak ZT of 2.1 at 773 K and a high average ZT of 1.61 (400–773 K) are obtained in the Sb–InSe codoped GeTe by the synergistic effects of structural modulation and esonant level.
Topics & Concepts
Thermoelectric effectModulation (music)Materials scienceAtmospheric temperature rangeRange (aeronautics)Condensed matter physicsOptoelectronicsEngineering physicsPhysicsThermodynamicsComposite materialAcousticsAdvanced Thermoelectric Materials and DevicesChalcogenide Semiconductor Thin FilmsPhase-change materials and chalcogenides