Heterogeneous in-situ nanostructure contributes to the thermoelectric performance of Zn4Sb3

Jianping Lin; Guanjun Qiao; Lingzhi Ma; Yang Ren; Baifeng Yang; Youjian Fei; Lei Lei

doi:10.1063/1.4802780

Heterogeneous in-situ nanostructure contributes to the thermoelectric performance of Zn₄Sb₃

Jianping Lin
, Guanjun Qiao
, Lingzhi Ma
, Yang Ren
, Baifeng Yang
, Youjian Fei
, Lei Lei

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

18 Citations (Scopus)

Abstract

Single-phase Zn₄Sb₃ and ZnSb-containing samples were prepared by Plasma Activated Sintering. An abrupt decrease of thermal conductivity was found at about 400 K, which is attributed to the microstructure change of Zn₄Sb₃. Nanoscale inclusions and compositional inhomogeneities were found in Zn₄Sb₃ sample at 473 K by high-resolution transmission electron microscopy. The phonon scattering is enhanced by increasing grain boundaries and chaotic structure, which reduces the thermal conductivity and increases the thermoelectric performance of Zn ₄Sb₃ at elevated temperature. The Rietveld refinement results show that large ZnSb grains in ZnSb-containing samples will accommodate excess Zn atoms, and then reduce thermoelectric performance. © 2013 AIP Publishing LLC.

Original language	English
Article number	163902
Journal	Applied Physics Letters
Volume	102
Issue number	16
DOIs	https://doi.org/10.1063/1.4802780
Publication status	Published - 22 Apr 2013
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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Cite this

@article{c385aee978ec4d939000edde846fbb4d,

title = "Heterogeneous in-situ nanostructure contributes to the thermoelectric performance of Zn4Sb3",

abstract = "Single-phase Zn4Sb3 and ZnSb-containing samples were prepared by Plasma Activated Sintering. An abrupt decrease of thermal conductivity was found at about 400 K, which is attributed to the microstructure change of Zn4Sb3. Nanoscale inclusions and compositional inhomogeneities were found in Zn4Sb3 sample at 473 K by high-resolution transmission electron microscopy. The phonon scattering is enhanced by increasing grain boundaries and chaotic structure, which reduces the thermal conductivity and increases the thermoelectric performance of Zn 4Sb3 at elevated temperature. The Rietveld refinement results show that large ZnSb grains in ZnSb-containing samples will accommodate excess Zn atoms, and then reduce thermoelectric performance. {\textcopyright} 2013 AIP Publishing LLC.",

author = "Jianping Lin and Guanjun Qiao and Lingzhi Ma and Yang Ren and Baifeng Yang and Youjian Fei and Lei Lei",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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volume = "102",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Heterogeneous in-situ nanostructure contributes to the thermoelectric performance of Zn4Sb3

AU - Lin, Jianping

AU - Qiao, Guanjun

AU - Ma, Lingzhi

AU - Ren, Yang

AU - Yang, Baifeng

AU - Fei, Youjian

AU - Lei, Lei

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2013/4/22

Y1 - 2013/4/22

N2 - Single-phase Zn4Sb3 and ZnSb-containing samples were prepared by Plasma Activated Sintering. An abrupt decrease of thermal conductivity was found at about 400 K, which is attributed to the microstructure change of Zn4Sb3. Nanoscale inclusions and compositional inhomogeneities were found in Zn4Sb3 sample at 473 K by high-resolution transmission electron microscopy. The phonon scattering is enhanced by increasing grain boundaries and chaotic structure, which reduces the thermal conductivity and increases the thermoelectric performance of Zn 4Sb3 at elevated temperature. The Rietveld refinement results show that large ZnSb grains in ZnSb-containing samples will accommodate excess Zn atoms, and then reduce thermoelectric performance. © 2013 AIP Publishing LLC.

AB - Single-phase Zn4Sb3 and ZnSb-containing samples were prepared by Plasma Activated Sintering. An abrupt decrease of thermal conductivity was found at about 400 K, which is attributed to the microstructure change of Zn4Sb3. Nanoscale inclusions and compositional inhomogeneities were found in Zn4Sb3 sample at 473 K by high-resolution transmission electron microscopy. The phonon scattering is enhanced by increasing grain boundaries and chaotic structure, which reduces the thermal conductivity and increases the thermoelectric performance of Zn 4Sb3 at elevated temperature. The Rietveld refinement results show that large ZnSb grains in ZnSb-containing samples will accommodate excess Zn atoms, and then reduce thermoelectric performance. © 2013 AIP Publishing LLC.

UR - https://www.scopus.com/pages/publications/84876996849

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U2 - 10.1063/1.4802780

DO - 10.1063/1.4802780

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

M1 - 163902

ER -