Improving the thermoelectric performance of p-type (BixSb1−x)2Te3 thin films via tuning the BixSb1−x layer DOI

Hang Ju,

Beibei Zhu, Wenya Wang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(33), P. 22276 - 22285

Published: Jan. 1, 2024

Through annealing the precursor layer Bi x Sb 1− combined with thickness variation, Seebeck coefficient and electrical conductivity are increased simultaneously in (Bi ) 2 Te 3 . A resultant high PF of 37.78 μW cm −1 K −2 is obtained.

Language: Английский

High thermoelectric performance of polycrystalline SnSe prepared by cold sintering DOI

Lijie Shi,

Jun Ding,

Xiangbin Chen

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

1
Perspective on Crystal Structures, Synthetic Methods, and New Directions in Thermoelectric Materials DOI Creative Commons
Marta María González-Barrios, Marina Tabuyo‐Martínez, David Ávila‐Brande

et al.

Small Structures, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

This review explores the state‐of‐the‐art of thermoelectric materials, covering different crystalline structures and material families (e.g., chalcogenides, Zintl phases, skutterudites, clathrates, oxides, half‐Heusler, organic–inorganic composites, metal–organic frameworks, silicides). It examines their corresponding properties while considering synthesis methods employed, paying significant attention to those that particularly follow sustainable routes. Additionally, work addresses current challenges in field, such as enhancing stability at high temperatures reducing manufacturing costs. The understanding gained this field opens avenues for designing more efficient devices convert waste heat into electrical energy, thereby advancing cleaner technologies.

Language: Английский

Citations

4
Achieving a High zTavg in n-Type Sb-Doped Mg2Si0.3Sn0.7 via High-Pressure-Modulated Microstructures DOI

Xiangyang Dong,

Rongwei Zhai, Bowen Zheng

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Mg2Si-based compounds are cost-effective and environmentally friendly thermoelectric materials. However, the current Mg2(Si,Sn) solid solutions still suffer from low figure of merit zT (or energy conversion efficiency), especially averaged value (zTavg < 1.0). In this study, we synthesize Mg2(Si0.3Sn0.7)1–xSbx (x = 0, 0.5, 0.75, 1, 1.5%) through combination high-pressure, high-temperature (HPHT) synthesis spark plasma sintering (SPS). The high-pressure instrument effectively inhibits unfavorable oxidation Mg. This HPHT + SPS methodology improves defect formation efficiency Sb-doped Mg2Si0.3Sn0.7, leading to an increased carrier concentration enhanced electrical conductivity. Moreover, as a benefit pressure-induced conduction band convergence Sb-flattened band, density states' effective mass (md*) significantly increases ∼3.3me, maintaining high Seebeck coefficients even at concentration. synergetic effects doping md* increase peak power factor exceed 50 μW cm–1 K–2. Notably, due HPHT-modified microstructures, hierarchy phonon scatterings established suppress lattice thermal conductivity 1.29 W m–1 K–1 568 K; Sb point defects, dislocations, grain boundaries/pores can scatter short-, medium-, long-wavelength phonons, respectively. Ultimately, optimized Mg2(Si0.3Sn0.7)0.99Sb0.01 sample in whole temperature region; is 1.37 673 K, plateau ∼1.35 realized between 723 K. Thus, notable average over range 323–723 K 1.08. Our work demonstrates that high-pressure-induced concentration, doping, microstructure modifications facilitate property improvement Mg2(Si,Sn)-based compounds.

Language: Английский

Citations

0
Synergistically optimize thermoelectric and mechanical properties of cubic SnSe-based alloys via nanocomposite engineering utilizing SiC nanoparticles as the dispersed phase DOI
Wenying Wang, Junliang Zhu,

Lin Bo

et al.

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Language: Английский

Citations

0
A Review of Polycrystalline SnSe Thermoelectric Materials: Progress and Prospects DOI

Yaru Gong,

Wei Dou, Yanan Li

et al.

Acta Metallurgica Sinica (English Letters), Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Language: Английский

Citations

0
Exploring the frontiers of SnSeS: A comprehensive review of properties and applications DOI

Yating Wang,

Lin Lin, Jian Zhang

et al.

Materials Science in Semiconductor Processing, Journal Year: 2024, Volume and Issue: 185, P. 108862 - 108862

Published: Aug. 31, 2024

Language: Английский

Citations

1
Variations in the optical and thermoelectric behavior of ZnCo2O4 nanostructures as a function of synthesis temperature DOI
Muhammad Usman Asad,

Naeem Ur-Rehman,

N. Bano

et al.

Journal of Ovonic Research, Journal Year: 2024, Volume and Issue: 20(5), P. 745 - 762

Published: Nov. 1, 2024

Zinc cobalt oxide nanostructures were synthesized by electrochemical deposition of zinccobalt alloy at various bath temperatures (15, 30, 45 and 60 ˚C) its hydrothermal oxidation 100 ˚C. X-ray diffraction pattern Raman spectroscopy data reveals the formation spinal structure ZnCo2O4. Photoluminescence spectra samples exhibit broad peaks with a red shift in emission energy. Diffused reflectance measured band gap materials; is 3.06, 3.03, 3.02 2.99 eV, for electrodeposited 15, ˚C, respectively. Optical conductivity materials decreases increasing layers while shows opposite trend. Thermoelectric set up measures change potential difference through when different are applied an increment observed. Seebeck co-efficient power factor also studied as function temperature.

Language: Английский

Citations

0
Improving the thermoelectric performance of p-type (BixSb1−x)2Te3 thin films via tuning the BixSb1−x layer DOI

Hang Ju,

Beibei Zhu, Wenya Wang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(33), P. 22276 - 22285

Published: Jan. 1, 2024

Through annealing the precursor layer Bi x Sb 1− combined with thickness variation, Seebeck coefficient and electrical conductivity are increased simultaneously in (Bi ) 2 Te 3 . A resultant high PF of 37.78 μW cm −1 K −2 is obtained.

Language: Английский

Citations

0