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Raman Spectroscopy as a Superior Tool To Understand the Synthetic Pathway of Cu 2 FeSnS 4 Nanoparticles
Author(s) -
Zhou Binbin,
Yan Xiunan,
Li Pan,
Yang Liangbao,
Yu Daoyang
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500189
Subject(s) - chalcogenide , raman spectroscopy , chemistry , nanocrystal , nanoparticle , kesterite , spectroscopy , characterization (materials science) , nanotechnology , band gap , chemical engineering , optoelectronics , czts , materials science , optics , physics , organic chemistry , engineering , quantum mechanics , layer (electronics)
The quaternary chalcogenide Cu 2 FeSnS 4 is important and interesting owing to its many advantageous characteristics for photovoltaic and optoelectronic applications, such as a suitable direct band gap (1.0–1.5 eV), low toxicity, and a relatively high abundance of the elements in the Earth's crust. To date, most of the reports on Cu 2 FeSnS 4 have focused on the synthetic method and optical properties, and few studies have comprehensively and systematically reported the growth mechanism of Cu 2 FeSnS 4 nanoparticles. Therefore, we have synthesized Cu 2 FeSnS 4 nanocrystals by a simple hot‐injection method and performed detailed characterizations. Raman spectroscopy is a characterization tool to differentiate the mixed‐composition phases in the synthetic pathway of Cu 2 FeSnS 4 nanocrystals, which cannot be efficiently distinguished by X‐ray diffraction. A possible synthesis mechanism for Cu 2 FeSnS 4 has been proposed.