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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Unconventional Luminescent Centers in Metastable Phases Created by Topochemical Reduction Reactions
作者: Liu, BM; Zhang, ZG; Zhang, K; Kuroiwa, Y; Moriyoshi, C; Yu, HM; Li, C; Zheng, LR; Li, LN; Yang, G; Zhou, Y; Fang, YZ; Hou, JS; Matsushita, Y; Sun, HT
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
出版日期: 2016
卷号: 55, 期号:16, 页码:4967—4971
关键词: METAL OXIDE-HYDRIDE ; EXTENDED OXIDE ; SILICA GLASS ; IRON-OXIDE ; PHOTOLUMINESCENCE ; TRANSITION ; ANION ; TRANSFORMATION ; LASRCOO3H0.7 ; BATIO3
DOI: 10.1002/anie.201601191
通讯作者: Sun, HT (reprint author), Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China.
文章类型: 期刊文献
英文摘要: A low-temperature topochemical reduction strategy is used herein to prepare unconventional phosphors with luminescence covering the biological and/or telecommunications optical windows. This approach is demonstrated by using Bi-III-doped Y2O3 (Y2-xBixO3) as a model system. Experimental results suggest that topochemical treatment of Y2-xBixO3 using CaH2 creates randomly distributed oxygen vacancies in the matrix, resulting in the change of the oxidation states of Bi to lower oxidation states. The change of the Bi coordination environments from the [BiO6] octahedra in Y2-xBixO3 to the oxygen-deficient [BiO6-z] polyhedra in reduced phases leads to a shift of the emission maximum from the visible to the near-infrared region. The generality of this approach was further demonstrated with other phosphors. Our findings suggest that this strategy can be used to explore Bi-doped or other classes of luminescent systems, thus opening up new avenues to develop novel optical materials.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000374496100016
ISSN号: 1433-7851
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25882
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Liu, BM,Zhang, ZG,Zhang, K,et al. Unconventional Luminescent Centers in Metastable Phases Created by Topochemical Reduction Reactions[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2016-01-01,55(16):4967—4971.
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