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Title: Research Update: Emerging chalcostibite absorbers for thin-film solar cells

Copper antimony chalcogenides CuSbCh 2 (Ch=S, Se) are an emerging family of absorbers studied for thin-film solar cells. These non-toxic and Earth-abundant materials show a layered low-dimensional chalcostibite crystal structure, leading to interesting optoelectronic properties for applications in photovoltaic (PV) devices. This research update describes the CuSbCh 2 crystallographic structures, synthesis methods, competing phases, band structures, optoelectronic properties, point defects, carrier dynamics, and interface band offsets, based on experimental and theoretical data. Correlations between these absorber properties and PV device performance are discussed, and opportunities for further increase in the efficiency of the chalcostibite PV devices are highlighted.
Authors:
ORCiD logo [1] ; ORCiD logo [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Materials Science Center; Federal Univ. of São Carlos (Brazil). Dept. of Chemistry
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States). Materials Science Center
Publication Date:
Report Number(s):
NREL/JA-5K00-71225
Journal ID: ISSN 2166-532X
Grant/Contract Number:
AC36-08GO28308; 2016/10513-3; 2014/12166-3
Type:
Accepted Manuscript
Journal Name:
APL Materials
Additional Journal Information:
Journal Volume: 6; Journal Issue: 8; Journal ID: ISSN 2166-532X
Publisher:
American Institute of Physics (AIP)
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States); Federal Univ. of São Carlos (Brazil)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); São Paulo Research Foundation (FAPESP) (Brazil)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; interfaces; metalloids; thin films; solar cells; crystal defects; band structure; solar energy; charge transfer
OSTI Identifier:
1455164
Alternate Identifier(s):
OSTI ID: 1440286