Journal article

Enhancement of Thermoelectric Performance in CuSbSe2 Nanoplate-Based Pellets by Texture Engineering and Carrier Concentration Optimization

Yubo Luo, Chengfeng Du, Qinghua Liang, Yun Zheng, Beibei Zhu, Huanlong Hu, Khiam Aik Khor, Jianwei Xu, Qingyu Yan, Mercouri G Kanatzidis

Small | Wiley - V C H Verlag GmbH & Co. KGaA | Published : 2018

Abstract

This work reports the thermoelectric properties of the CuSbSe2‐x mol% PtTe2 (x = 0, 0.5, 1.0, 1.5, and 2.0) pellets composed of highly oriented single crystalline nanoplates. CuSbSe2‐PtTe2 single crystalline nanoplates are prepared by a wet‐chemical process, and the pellets are prepared through a bottom‐up self‐assembly of the CuSbSe2‐PtTe2 nanoplates and spark plasma sintering (SPS) process. X‐ray diffraction and field emission scanning electron microscopic analyses show a highly textured nature with an orientation factor of ≈0.8 for (00l) facets along the primary surface of the pellets (in‐plane, perpendicular to the SPS pressure). By this way, bulk‐single‐crystal‐like electrical and therm..

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University of Melbourne Researchers

Grants

Awarded by Department of Energy, Office of Science Basic Energy Sciences, DOE Office of Science


Awarded by Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource


Awarded by MRSEC program at the Materials Research Center


Awarded by Office of Science of the U.S. Department of Energy


Awarded by National Natural Science Foundation of China


Awarded by Singapore MOE AcRF Tier 1


Awarded by Singapore A*STAR Pharos Program


Funding Acknowledgements

This work was supported by the Department of Energy, Office of Science Basic Energy Sciences under grant DE-SC0014520, DOE Office of Science (sample preparation, synthesis, XRD, TE measurements, and TEM measurements). This work made use of the EPIC facilities of Northwestern's NUANCE Center, which has received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205); the MRSEC program (NSF DMR-1720139) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. User facilities are supported by the Office of Science of the U.S. Department of Energy under Contract Nos. DE-AC02-06CH11357 and DE-AC02-05CH11231. Access to facilities of high performance computational resources at the Northwestern University is acknowledged. The authors also acknowledge National Natural Science Foundation of China (61728401), Singapore MOE AcRF Tier 1 under Grant No. 2016-T1-002-065, Singapore A*STAR Pharos Program SERC 1527200021 and 1527200022, the support from FACTs of Nanyang Technological University for sample analysis.