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Author Hou, Xian ♦ Li, Yan ♦ Yan, Jian-Jun ♦ Wang, Cheng-Wei
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ COPPER COMPOUNDS ♦ ENERGY GAP ♦ ILLUMINANCE ♦ IRRADIATION ♦ METHYL ORANGE ♦ NANOSTRUCTURES ♦ PHOTOCATALYSIS ♦ POWDERS ♦ P-TYPE CONDUCTORS ♦ SOLAR CELLS ♦ TIN SULFIDES ♦ TITANIUM OXIDES ♦ VISIBLE RADIATION ♦ VISIBLE SPECTRA ♦ ZINC COMPOUNDS
Abstract Highlights: • Kesterite CZTS nanocrystal powder was synthesized by one-pot method. • First successful use CZTS nanocrystal powder as photocatalyst. • CZTS shows an efficient photocatalysis under visible light irradiation. • CZTS photocatalyst having excellent stability. - Abstract: Cu{sub 2}ZnSnS{sub 4}, as a very promising p-type semiconductor material, has been extensively used in the study of solar cells owing to its suitable band gap (1.1–1.5 eV), large absorption coefficient of 10{sup 4} cm{sup −1} in the visible spectrum, good photo stability, nontoxicity and relative abundance of the component elements. In this paper, we have successfully synthesized p-type kesterite Cu{sub 2}ZnSnS{sub 4} nanocrystal powder by facile one-pot method, and made our first successful attempt to use Cu{sub 2}ZnSnS{sub 4} nanocrystal powder as a photocatalyst to degradation methyl orange under visible-light irradiation. The exciting results show that in the visible light region, Cu{sub 2}ZnSnS{sub 4} nanocrystal powder possesses an excellent photocatalytic performance of K = 0.0317 min{sup −1}, nearly about 6 times of well known commercial P25 titania powder performance under the same conditions, which suggests that the p-type kesterite Cu{sub 2}ZnSnS{sub 4} nanocrystal would be a promising candidate of photocatalyst.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-12-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 60


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