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Pressure induced structural transitions in CuSbS2 and CuSbSe2 thermoelectric compounds

Journal Article · · Journal of Alloys and Compounds
 [1];  [2];  [2];  [2];  [2];  [3];  [4];  [2];  [2];  [2];  [2]
  1. Univ. of Nevada, Las Vegas, NV (United States). Dept. of Physics and Astronomy and High Pressure Science and Engineering Center (HiPSEC); UNLV
  2. Univ. of Nevada, Las Vegas, NV (United States). Dept. of Physics and Astronomy and High Pressure Science and Engineering Center (HiPSEC)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of Nevada, Las Vegas, NV (United States)
Here, we investigate the structural behavior of CuSbS2 and CuSbSe2 thermoelectric materials under high pressure conditions up to 80 GPa using angle dispersive X-ray diffraction in a diamond anvil cell (DAC). We also perform high pressure Raman spectroscopy measurements up to 16 GPa. We observed a pressure-induced structural transformation from the ambient orthorhombic structure with space group Pnma to a triclinic type structure with space group P1 beginning around 8 GPa in both samples and completing at 13 GPa and 10 GPa in CuSbS2 and CuSbSe2, respectively. High pressure Raman experiments complement the transitions observed by high pressure X-ray diffraction (HPXRD). Finally, the transitions were found to be reversible on releasing the pressure to ambient in the DAC. The bulk modulus and compressibility of these materials are further discussed.
Research Organization:
Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab.; Univ. of Nevada, Las Vegas, NV (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE National Nuclear Security Administration (NNSA), Office of Defense Science (NA-113); USDOE Office of Legacy Management (LM), Office of Site Operations (LM-20); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357; FG02-99ER45775; NA0001974; NA0001982; NA0002006
OSTI ID:
1332338
Alternate ID(s):
OSTI ID: 1338323
OSTI ID: 22450674
OSTI ID: 1182304
OSTI ID: 1254361
Journal Information:
Journal of Alloys and Compounds, Journal Name: Journal of Alloys and Compounds Journal Issue: C Vol. 643; ISSN 0925-8388
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Copper Sulfides: Earth‐Abundant and Low‐Cost Thermoelectric Materials journal April 2019
Micro-Raman spectroscopy of natural members along CuSbS 2 -CuSbSe 2 join journal May 2018
Growth of CuSbS 2 Single Crystal as an Environmentally Friendly Thermoelectric Material journal February 2019
Reaction Tailoring for Synthesis of Phase-Pure Nanocrystals of AgInSe 2 , Cu 3 SbSe 3 and CuSbSe 2 journal March 2018
The impact of lone-pair electrons on the lattice thermal conductivity of the thermoelectric compound CuSbS 2 journal January 2017
Pressure-induced conduction band convergence in the thermoelectric ternary chalcogenide CuBiS 2 journal January 2019
CuSbSe 2 /TiO 2 : novel type-II heterojunction nano-photocatalyst journal January 2019
Copper antimony sulfide thin films for visible to near infrared photodetector applications journal January 2018
Observation of photoluminescence edge emission in CuSbSe 2 absorber material for photovoltaic applications journal August 2019
Phase transformation and photoelectrochemical characterization of Cu/Bi and Cu/Sb based selenide alloys as promising photoactive electrodes journal November 2019
Development of sputtered CuSbS 2 thin films grown by sequential deposition of binary sulfides journal April 2018
Copper–antimony and copper–bismuth chalcogenides—Research opportunities and review for solar photovoltaics journal January 2018

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