Burstein-moss effect leads to an unusual suppression of bipolar conduction with shrinking bandgap
Chenxi Zhao, Shengtao Cui, Yuanlong Li, Yunbo Wu, Tongrui Li, Kai Li, Liang Sun, Zhe Sun, Chong Xiao, Yi Xie
Abstract
The energy sum of bandgap and Fermi level shift ( E g + Δ E shift ) is a better indicator than E g alone for judging the ease of intrinsic excitation and bipolar conduction in thermoelectric materials.
Topics & Concepts
Band gapCondensed matter physicsConduction bandMaterials scienceQuasi Fermi levelThermal conductionExcitationFermi levelOptoelectronicsPhysicsDirect and indirect band gapsQuantum mechanicsElectronComposite materialAdvanced Thermoelectric Materials and DevicesTopological Materials and Phenomena2D Materials and Applications