Engineering an atomic-level crystal lattice and electronic band structure for an extraordinarily high average thermoelectric figure of merit in n-type PbSe
Bangzhi Ge, Hyungseok Lee, Jino Im, Y. S. Choi, Shin‐Yeong Kim, Ji Yeong Lee, Sung‐Pyo Cho, Yung‐Eun Sung, Kwang‐Yong Choi, Chongjian Zhou, Zhongqi Shi, In Jae Chung
Abstract
Multiscale defect structures driven by interstitial Cu, off-centered Pb and Se atoms and scarce anion vacancies in the new Cu x Pb(Se 0.8 Te 0.2 ) 0.95 give a record-high average ZT among all polycrystalline n-type thermoelectric materials due to high PF.
Topics & Concepts
Thermoelectric effectCrystalliteMaterials scienceIonCrystal structureLattice (music)Condensed matter physicsFigure of meritElectronic band structureThermoelectric materialsCrystallographyMetallurgyChemistryOptoelectronicsPhysicsThermodynamicsOrganic chemistryAcousticsAdvanced Thermoelectric Materials and DevicesChalcogenide Semiconductor Thin FilmsHeusler alloys: electronic and magnetic properties