Zinc Doping Induces Enhanced Thermoelectric Performance of Solvothermal SnTe.

Wang, Lijun; Shi, Xiao-Lei; Li, Lvzhou; Hong, Min; Lin, Bencai; Miao, Pengcheng; Ding, Jianning; Yuan, Ningyi; Zheng, Shuqi; Chen, Zhi-Gang

Wang, Lijun; Shi, Xiao-Lei; Li, Lvzhou; Hong, Min; Lin, Bencai; Miao, Pengcheng; Ding, Jianning; Yuan, Ningyi; Zheng, Shuqi; Chen, Zhi-Gang.

Afiliación

Wang L; School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou, Jiangsu, 213164, China.
Shi XL; School of Chemistry and Physics, ARC Research Hub in Zero-emission Power Generation for Carbon Neutrality, and Centre for Materials Science, Queensland University of Technology, Brisbane, Queensland, 4000, Australia.
Li L; Yangzhou Technology Innovation Research Center for Carbon Neutrality of Yangzhou University, School of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China.
Hong M; Centre for Future Materials and School of Engineering, University of Southern Queensland, Springfield Central, Queensland, 4300, Australia.
Lin B; School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou, Jiangsu, 213164, China.
Miao P; School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou, Jiangsu, 213164, China.
Ding J; Yangzhou Technology Innovation Research Center for Carbon Neutrality of Yangzhou University, School of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, Jiangsu, China.
Yuan N; School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou, Jiangsu, 213164, China.
Zheng S; State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing, 102249, China.
Chen ZG; School of Chemistry and Physics, ARC Research Hub in Zero-emission Power Generation for Carbon Neutrality, and Centre for Materials Science, Queensland University of Technology, Brisbane, Queensland, 4000, Australia.

Chem Asian J ; 19(10): e202400130, 2024 May 17.

Article en En | MEDLINE | ID: mdl-38380867

ABSTRACT

ABSTRACT

The creation of hierarchical nanostructures can effectively strengthen phonon scattering to reduce lattice thermal conductivity for improving thermoelectric properties in inorganic solids. Here, we use Zn doping to induce a remarkable reduction in the lattice thermal conductivity in SnTe, approaching the theoretical minimum limit. Microstructure analysis reveals that ZnTe nanoprecipitates can embed within SnTe grains beyond the solubility limit of Zn in the Zn alloyed SnTe. These nanoprecipitates result in a substantial decrease of the lattice thermal conductivity in SnTe, leading to an ultralow lattice thermal conductivity of 0.50âW m-1 K-1 at 773âK and a peak ZT of ~0.48 at 773âK, marking an approximately 45 % enhancement compared to pristine SnTe. This study underscores the effectiveness of incorporating ZnTe nanoprecipitates in boosting the thermoelectric performance of SnTe-based materials.

Palabras clave

SnTe; ZnTe; lattice thermal conductivity; nanoprecipitate; thermoelectric materials

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