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Title: Pressure induced structural transitions in CuSbS2 and CuSbSe2 thermoelectric compounds

Journal Article · · Journal of Alloys and Compounds
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1];  [1];  [1];  [1]
  1. Univ. of Nevada, Las Vegas, NV (United States). Dept. of Physics and Astronomy and High Pressure Science and Engineering Center (HiPSEC)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Nevada, Las Vegas, NV (United States)

We have investigated 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 have also performed high-pressure Raman spectroscopy measurements up to 15 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). 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:
Univ. of Nevada, Las Vegas, NV (United States); Carnegie Inst. of Science, Washington, DC (United States). Geophysical Lab.
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Science (NA-113); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Legacy Management (LM), Office of Field Operations
Grant/Contract Number:
NA0001982; NA0001974; FG02-99ER45775; AC02-06CH11357; NA0002006
OSTI ID:
1332338
Alternate ID(s):
OSTI ID: 1254361; OSTI ID: 1338323
Journal Information:
Journal of Alloys and Compounds, Vol. 643, Issue C; ISSN 0925-8388
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 45 works
Citation information provided by
Web of Science

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Cited By (11)

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

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