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ID 49716
著者
Okada, Ryoki
Kawanishi, Kodai
Katagiri, Kiyofumi 大学院工学研究科 広大研究者総覧
Inumaru, Kei 大学院工学研究科 広大研究者総覧
キーワード
Oxycyanamide
Carbodiimide
Mixed anion compound
Phosphor
Urea
抄録(英)
A facile method was successfully developed to prepare lanthanum oxycyanamide, La2O2CN2. Urea was selected as a cyanamidation agent, instead of gaseous NH3 with graphite containers, to achieve a safe and simple synthetic strategy. Through the optimization of reaction conditions, including content of urea and heat-treatment temperature, single-phase La2O2CN2 could be obtained without any impurities. We also prepared a La2O2CN2:Eu3+ phosphor. The Eu3+-doped La2O2CN2 matrix showed a red emission. Furthermore, in comparison with La2O3:Eu3+, the photoluminescence excitation bands corresponding to the Eu3+–ligand charge transfer region were broadened. These results suggested that La2O2CN2 prepared via the urea route will offer superb application prospects for photoluminescence materials such as white light-emitting diodes.
内容記述
This work was supported by JSPS KAKENHI Grant Numbers JP17H05483 and JP17H03392. This work was partly supported by the Center for Functional Nano Oxide at Hiroshima University, Japan.
アクセプト後にキーワードの変更あり。
掲載誌名
Ceramics International
45巻
7号
開始ページ
9325
終了ページ
9329
出版年月日
2019-05
出版者
Elsevier
ISSN
0272-8842
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
関連情報URL
部局名
工学研究科
備考
Post-print version/PDF may be used in an institutional repository after an embargo period of 24 months.