Chalcogenide thermoelectrics empowered by an unconventional bonding mechanism

Y Yu, M Cagnoni, O Cojocaru‐Mirédin… - Advanced Functional …, 2020 - Wiley Online Library
Thermoelectric materials have attracted significant research interest in recent decades due
to their promising application potential in interconverting heat and electricity. Unfortunately …

Layered materials with 2D connectivity for thermoelectric energy conversion

M Samanta, T Ghosh, S Chandra… - Journal of materials …, 2020 - pubs.rsc.org
The current problems of decreasing fossil fuel reserves and the increasing pollution level
due to burning of these fossil fuels are expected to worsen in the future with ever increasing …

Doping by design: enhanced thermoelectric performance of GeSe alloys through metavalent bonding

Y Yu, C Zhou, T Ghosh, CF Schön, Y Zhou… - Advanced …, 2023 - Wiley Online Library
Doping is usually the first step to tailor thermoelectrics. It enables precise control of the
charge‐carrier concentration and concomitant transport properties. Doping should also turn …

[HTML][HTML] Key properties of inorganic thermoelectric materials—tables (version 1)

R Freer, D Ekren, T Ghosh, K Biswas… - Journal of Physics …, 2022 - iopscience.iop.org
This paper presents tables of key thermoelectric properties, which define thermoelectric
conversion efficiency, for a wide range of inorganic materials. The twelve families of …

Metavalent bonding in GeSe leads to high thermoelectric performance

D Sarkar, S Roychowdhury, R Arora… - Angewandte Chemie …, 2021 - Wiley Online Library
Orthorhombic GeSe is a promising thermoelectric material. However, large band gap and
strong covalent bonding result in a low thermoelectric figure of merit, zT≈ 0.2. Here, we …

General strategies to improve thermoelectric performance with an emphasis on tin and germanium chalcogenides as thermoelectric materials

M Rakshit, D Jana, D Banerjee - Journal of Materials Chemistry A, 2022 - pubs.rsc.org
Thermoelectric (TE) materials have attracted tremendous research interests over the past
few decades, due to their application in power generation technology from waste heat …

Ferroelectric Instability Induced Ultralow Thermal Conductivity and High Thermoelectric Performance in Rhombohedral p-Type GeSe Crystal

D Sarkar, T Ghosh, S Roychowdhury… - Journal of the …, 2020 - ACS Publications
The orthorhombic phase of GeSe, a structural analogue of layered SnSe (space group:
Pnma), has recently attracted attention after a theoretical prediction of high thermoelectric …

Germanium chalcogenide thermoelectrics: electronic structure modulation and low lattice thermal conductivity

S Roychowdhury, M Samanta, S Perumal… - Chemistry of …, 2018 - ACS Publications
Thermoelectric materials can convert untapped heat to electricity and are expected to have
an important role in future energy utilization. IV–VI metal chalcogenides are the most …

Crystal symmetry enables high thermoelectric performance of rhombohedral GeSe (MnCdTe2) x

X Li, Z Liang, J Li, F Cheng, J He, C Zhang, J Li, F Liu… - Nano Energy, 2022 - Elsevier
High symmetry favors high power factor by virtue of the balanced Seebeck coefficient and
carrier mobility, nonetheless, the role of crystal symmetry in enhancing the material's …

Enhanced thermoelectric performance through crystal field engineering in transition metal–doped GeTe

J Shuai, XJ Tan, Q Guo, JT Xu, A Gellé, R Gautier… - Materials Today …, 2019 - Elsevier
The change of multivalence band structure configuration between rhombohedral and cubic
phase in GeTe offers additional dimension to modify its thermoelectric properties. Here, we …