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Synthesis, crystal structure and optical absorption of NaInS2-xSex

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Title: Synthesis, crystal structure and optical absorption of NaInS2-xSex
Authors: Takahashi, Natsuumi Browse this author
Ito, Hiroaki Browse this author
Miura, Akira Browse this author →KAKEN DB
Rosero-Navarro, Nataly Carolina Browse this author
Goto, Yosuke Browse this author
Mizuguchi, Yoshikazu Browse this author
Moriyoshi, Chikako Browse this author
Kuroiwa, Yoshihiro Browse this author
Nagao, Masanori Browse this author
Watauchi, Satoshi Browse this author
Tanaka, Isao Browse this author
Tadanaga, Kiyoharu Browse this author
Keywords: Solid state reactions
Crystal structure
X-ray diffraction
Synchrotron radiation
Issue Date: 7-Apr-2018
Publisher: Elsevier
Journal Title: Journal of Alloys and Compounds
Volume: 750
Start Page: 409
End Page: 413
Publisher DOI: 10.1016/j.jallcom.2018.03.407
Abstract: Although NaInS2 and its isostructural NaInSe2 have been known for more than half a century, these solid solutions have not been investigated. In this work, three layered chalcogenides, NaInS1.5Se0.5, NaInSSe, and NaInS0.5Se1.5 were synthesized by ball milling and subsequent heating. In-situ synchrotron X-ray diffraction showed that these three chalcogenides were isostructural with NaInS2/NaInSe2 above 550 K, and were stable below 820 K. The mixed occupancy of S and Se were confirmed by Rietveld refinements; the band gap of NaInSSe was estimated to be 2.31 eV by its optical absorption.
Rights: ©2018.This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 三浦 章

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