@article{26ebc670d20a4ec997dbfcfe97f02ef2,
title = "Enhancement of Thermoelectric Performance in CuSbSe2 Nanoplate-Based Pellets by Texture Engineering and Carrier Concentration Optimization",
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 thermal transport properties with a strong anisotropy are obtained, which results in an effective optimization on thermoelectric performance. The maximum in-plane thermoelectric figure-of-merit ZT value reaches 0.50 at 673 K for CuSbSe2-2.0 mol% PtTe2 pellet, which is about five times higher than the in-plane ZT (0.10) for pure CuSbSe2.",
keywords = "CuSbSe, carrier concentration, nanoplate, texture, thermoelectric",
author = "Yubo Luo and Chengfeng Du and Qinghua Liang and Yun Zheng and Beibei Zhu and Huanlong Hu and Khor, {Khiam Aik} and Jianwei Xu and Qingyu Yan and Kanatzidis, {Mercouri G.}",
note = "Funding Information: 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. Funding Information: 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{\textquoteright}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. Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2018",
month = dec,
day = "13",
doi = "10.1002/smll.201803092",
language = "English (US)",
volume = "14",
journal = "Small",
issn = "1613-6810",
publisher = "Wiley-VCH Verlag",
number = "50",
}