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Title: Single Crystal Growth of Sillén–Aurivillius Perovskite Oxyhalides Bi₄NbO₈X (X = Cl, Br)
Authors: Zhong, Chengchao
Kato, Daichi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-1600-4095 (unconfirmed)
Takeiri, Fumitaka
Fujii, Kotaro
Yashima, Masatomo
Nishiwaki, Emily
Fujii, Yasuhiro
Koreeda, Akitoshi
Tassel, Cédric  kyouindb  KAKEN_id
Abe, Ryu  kyouindb  KAKEN_id
Kageyama, Hiroshi
Author's alias: 鐘, 承超
加藤 大地
竹入, 史隆
ニシワキ, エミリ
タッセル, セドリック
阿部, 竜
陰山, 洋
Keywords: single crystal growth
Sillén–Aurivillius compounds
melt growth
photocatalyst
Issue Date: 16-Apr-2018
Publisher: MDPI AG
Journal title: Inorganics
Volume: 6
Issue: 2
Thesis number: 41
Abstract: Sillén–Aurivillius perovskite Bi₄NbO₈X (X = Cl, Br) is a promising photocatalyst for water splitting under visible light, as well as a potential ferroelectric material. In this work, we investigate the crystal growth conditions by mainly varying soak temperature, soak time and cooling rate. Under the optimal conditions, we successfully obtained yellow platelet single crystals with an in-plane distance of several hundred microns. As opposed to conventional crystal growth, a moderate cooling is essential to suppress an evaporation of the Bi–O–Cl species from a melt zone. The single crystals of Bi4NbO8Br were also grown using a similar condition. We suggest that the knowledge obtained in this study can be generally applied to other Sillén–Aurivillius phases and related oxyhalides
Rights: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
URI: http://hdl.handle.net/2433/234207
DOI(Published Version): 10.3390/inorganics6020041
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