Slowing down the heat in thermoelectrics

B Qin, D Wang, LD Zhao - InfoMat, 2021 - Wiley Online Library
Heat transport has various applications in solid materials. In particular, the thermoelectric
technology provides an alternative approach to traditional methods for waste heat recovery …

Low thermal conductivity in a modular inorganic material with bonding anisotropy and mismatch

QD Gibson, T Zhao, LM Daniels, HC Walker, R Daou… - Science, 2021 - science.org
The thermal conductivity of crystalline materials cannot be arbitrarily low, as the intrinsic limit
depends on the phonon dispersion. We used complementary strategies to suppress the …

Hierarchical Structures Advance Thermoelectric Properties of Porous n-type β-Ag2Se

J Chen, Q Sun, D Bao, T Liu, WD Liu… - … Applied Materials & …, 2020 - ACS Publications
Owing to the intrinsically good near-room-temperature thermoelectric performance, β-Ag2Se
has been considered as a promising alternative to n-type Bi2Te3 thermoelectric materials …

Melt-spun Sn1− x− ySbxMnyTe with unique multiscale microstructures approaching exceptional average thermoelectric zT

X Yan, S Zheng, Z Zhou, H Wu, B Zhang, Y Huang… - Nano Energy, 2021 - Elsevier
SnTe has attracted worldwide attention as a non-toxic candidate material for thermoelectric
applications; however, un-modified SnTe possesses inferior thermoelectric properties …

Boosting Thermoelectric Performance of Cu2SnSe3 via Comprehensive Band Structure Regulation and Intensified Phonon Scattering by Multidimensional Defects

H Ming, G Zhu, C Zhu, X Qin, T Chen, J Zhang, D Li… - ACS …, 2021 - ACS Publications
As an eco-friendly thermoelectric material, Cu2SnSe3 has recently drawn much attention.
However, its high electrical resistivity ρ and low thermopower S prohibit its thermoelectric …

Uncovering design principles for amorphous-like heat conduction using two-channel lattice dynamics

R Hanus, J George, M Wood, A Bonkowski… - Materials Today …, 2021 - Elsevier
The physics of heat conduction puts practical limits on many technological fields such as
energy production, storage, and conversion. It is now widely appreciated that the phonon …

Creating high-dense stacking faults and endo-grown nanoneedles to enhance phonon scattering and improve thermoelectric performance of Cu2SnSe3

H Ming, C Zhu, T Chen, S Yang, Y Chen, J Zhang, D Li… - Nano Energy, 2022 - Elsevier
Since mid-and low frequency phonons (MLFPs) dominate heat transport in multi-component
alloys/compounds, it is vital to block MLFPs to reduce lattice thermal conductivity k L. Here …

[HTML][HTML] Violation of the T− 1 relationship in the lattice thermal conductivity of Mg3Sb2 with locally asymmetric vibrations

Y Zhu, Y **a, Y Wang, Y Sheng, J Yang, C Fu, A Li… - Research, 2020 - spj.science.org
Most crystalline materials follow the guidelines of T− 1 temperature-dependent lattice
thermal conductivity (κ L) at elevated temperatures. Here, we observe a weak temperature …

Ternary thermoelectric AB2C2 zintls

L Zheng, W Li, C Sun, X Shi, X Zhang, Y Pei - Journal of Alloys and …, 2020 - Elsevier
Abstract As derivatives of Mg 3 Sb 2, ternary CaAl 2 Si 2-structured AB 2 C 2 Zintl
compounds (A= Mg, Ca, Sr, Ba, Eu, Yb; Bdouble bondMg, Zn, Cd; Cdouble bondP, As, Sb …

Ultra-high thermoelectric performance in SnTe by the integration of several optimization strategies

Z Ma, C Wang, Y Chen, L Li, S Li, J Wang… - Materials Today Physics, 2021 - Elsevier
Using nanostructures to improve the performance of bulk thermoelectric materials is a very
effective and prevailing method. The integration of several optimization strategies into a …