Br doping-induced evolution of the electronic band structure in dimorphic and hexagonal SnSe₂ thermoelectric materials.

ABSTRACT: SnSe₂ with its layered structure is a promising thermoelectric material with intrinsically low lattice thermal conductivity. However, its poor electronic transport properties have motivated extensive doping studies. Br doping effectively improves the power factor and converts the dimorphic SnSe₂ to a fully hexagonal structure. To understand the mechanisms underlying the power factor improvement of Br-doped SnSe₂, the electronic band parameters of Br-doped dimorphic and hexagonal SnSe₂ should be evaluated separately. Using the single parabolic band model, we estimate the intrinsic mobility and effective mass of the Br-doped dimorphic and hexagonal SnSe₂. While Br doping significantly improves the mobility of dimorphic SnSe₂ (

SUBMITTER: Kim SJ 

PROVIDER: S-EPMC10898343 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature