Enhanced Thermoelectric Properties of Mg2Sn-Mg3Sb2 Nanocomposites by Tailoring Matrix/Inclusion Interface toward Energy Harvesting Applications

Zhu，Yongbin1; Shu，Rui2; Jiang，Feng1; Elsukova，Anna2; Persson，Per O.Å.2; Eklund，Per2; Liu，Weishu1,3

2023

10.1021/acsanm.3c00439

ACS Applied Nano Materials   Impact Factor & Quartile

2574-0970

Nanocomposites have been long exploited for achieving balanced material properties. Here, we synthesized nominal (MgSnSb)-(MgSb) (x = 0-0.15) nanocomposites, achieving a significant reduction of the lattice thermal conductivity of MgSnSb from 2.03 WmK to 1.38 WmK due to phonon scattering by V point defects, MgSb nanoparticles, and heterogeneous interfaces. Hence, a significantly enhanced thermoelectric figure of merit, ZT, is achieved. At 773 K, the sample of x = 0.075 reaches a ZT of 1.4, corresponding to a 14% enhancement compared to the MgSnSb (x = 0) sample. The strategy of introducing heterogeneous structures has important implications for reducing thermal conductivity for other solid-solution thermoelectric systems.

carrier mobility heterogeneous interfaces lattice thermal conductivity Mg2Sn-Mg3Sb2 nanocomposites thermoelectric

SCI

English

First ; Corresponding

Shenzhen Key Program for Long-Term Academic Support Plan[20200925164021002] ; National Key Research and Development Program of China[2018YFB0703600] ; National Natural Science Foundation of China[51872133] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587] ; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001] ; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoeping University (Faculty Grant SFO-Mat-LiU)[2009 00971] ; Knut and Alice Wallenberg foundation through the Wallenberg Academy Fellows program[KAW-2020.0196] ; Swedish Research Council["2021-00171","RIF21-0026"] ; Foundation for Strategic Research["2021-00171","RIF21-0026"]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000967010800001

AMER CHEMICAL SOC

2-s2.0-85151853228

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Thin Film Physics Division,Department of Physics,Chemistry,and Biology (IFM),Linköping University,Linköping,SE-581 83,Sweden
3.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Zhu，Yongbin,Shu，Rui,Jiang，Feng,et al. Enhanced Thermoelectric Properties of Mg2Sn-Mg3Sb2 Nanocomposites by Tailoring Matrix/Inclusion Interface toward Energy Harvesting Applications[J]. ACS Applied Nano Materials,2023.

Zhu，Yongbin.,Shu，Rui.,Jiang，Feng.,Elsukova，Anna.,Persson，Per O.Å..,...&Liu，Weishu.(2023).Enhanced Thermoelectric Properties of Mg2Sn-Mg3Sb2 Nanocomposites by Tailoring Matrix/Inclusion Interface toward Energy Harvesting Applications.ACS Applied Nano Materials.

Zhu，Yongbin,et al."Enhanced Thermoelectric Properties of Mg2Sn-Mg3Sb2 Nanocomposites by Tailoring Matrix/Inclusion Interface toward Energy Harvesting Applications".ACS Applied Nano Materials (2023).