Versatile Vanadium Doping Induces High Thermoelectric Performance in GeTe via Band Alignment and Structural Modulation
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Energy Materials"
DOI: 10.1002/aenm.202100544
Abstract: Owing to the moderate energy offset between light and heavy band edges of the rock‐salt structured GeTe, its figure‐of‐merit (ZT) can be enhanced by the rational manipulation of electronic band structures. In this study, density… read more here.
Keywords: versatile vanadium; doping induces; performance; band ... See more keywords
Real-time observation of the thermally-induced phase transformation in GeTe and its thermal expansion properties
Sign Up to like & getrecommendations! Published in 2019 at "Acta Materialia"
DOI: 10.1016/j.actamat.2018.11.059
Abstract: Abstract The GeTe-based system has long been considered as a promising candidate system for various functional applications; many of which are directly related to the polymorphic phase transformation in their crystalline forms. Consequently, the microstructure… read more here.
Keywords: phase transformation; real time; gete; phase transition ... See more keywords
Germanium telluride: Layered high-performance anode for sodium-ion batteries
Sign Up to like & getrecommendations! Published in 2020 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2019.135393
Abstract: Abstract Germanium telluride (GeTe) with a layered structure and a GeTe nanocomposite modified by amorphous carbon (GeTe/C) are prepared via a simple solid-state synthesis, and their electrochemical performance for sodium-ion batteries is evaluated. To determine… read more here.
Keywords: sodium ion; germanium telluride; gete; ion ... See more keywords
Chemistry in Advancing Thermoelectric GeTe Materials.
Sign Up to like & getrecommendations! Published in 2022 at "Accounts of chemical research"
DOI: 10.1021/acs.accounts.2c00467
Abstract: ConspectusThe ever-growing energy crisis and the deteriorated environment caused by carbon energy consumption motivate the exploitation of alternative green and sustainable energy supplies. Because of the unique advantages of zero-emission, no moving parts, accurate temperature… read more here.
Keywords: thermoelectric materials; chemistry; energy; gete ... See more keywords
Synergistically Optimized Thermal Conductivity and Carrier Concentration in GeTe by Bi-Se Codoping.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c00546
Abstract: The GeTe compound has been revealed to be an outstanding thermoelectric compound, while its inherent high thermal conductivity restricts further improvement in its performance. Herein, we report a study on the synergistic optimization of the… read more here.
Keywords: thermal conductivity; carrier concentration; gete; conductivity ... See more keywords
High-Performance GeTe Thermoelectrics in Both Rhombohedral and Cubic Phases.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.8b09147
Abstract: GeTe experiences phase transition between cubic and rhombohedral through distortion along the [111] direction. Cubic GeTe shares the similarity of a two-valence-band structure (high-energy L and low-energy Σ bands) with other cubic IV-VI semiconductors such… read more here.
Keywords: degeneracy; energy; rhombohedral cubic; band ... See more keywords
Unusual thermoelectric transport anisotropy in quasi-two-dimensional rhombohedral GeTe
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.075201
Abstract: In this study, we calculate the $T$=300 K scattering and thermoelectric transport properties of rhombohedral GeTe using first-principles modeling. The room-temperature phase of GeTe has a layered structure, with cross-plane and in-plane directions oriented parallel… read more here.
Keywords: plane; thermoelectric transport; anisotropy; cross plane ... See more keywords