Transformation of Perovskite BaBiO3 into Layered BaBiO2.5 Crystals Featuring Unusual Chemical Bonding and Luminescence
文献类型：期刊论文
| 作者 | Zheng, LR ; Moriyoshi, C; Kuroiwa, Y; Ma, JP; Guo, SQ; Li, ZY; Zhang, JY; Liu, BM; Zhao, Q; Li, H
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| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 24期号:35页码:8875-8882 |
| ISSN号 | 0947-6539 |
| 关键词 | bismuth layered structures luminescence phase transitions solid-state structures |
| DOI | 10.1002/chem.201801257 |
| 文献子类 | Article |
| 英文摘要 | Engineering oxygen coordination environments of cations in oxides has received intense interest thanks to the opportunities for the discovery of novel oxides with unusual properties. Herein, the synthesis of stoichiometric layered BaBiO2.5 by a nontopotactic phase transformation of perovskite BaBiO3 is presented. By analyzing the synchrotron X-ray diffraction data by the maximum-entropy method/Rietveld technique, it was found that Bi is involved in an unusual chemical bonding situation with four oxygen atoms featuring one ionic bond and three covalent bonds, which results in an asymmetric coordination geometry. Photophysical characterization revealed that this peculiar structure shows near-infrared luminescence differing from that of conventional Bi-containing compounds. Experimental and theoretical results led to the proposal of an excitonic nature of the luminescence. This work highlights that synthesizing materials with uncommon Bi-O bonding and Bi coordination geometry provides a pathway to the discovery of systems with new functionalities. This could inspire interest in the exploration of a range of materials containing heavier p-block elements with prospects for finding systems with unusual properties. |
| 电子版国际标准刊号 | 1521-3765 |
| WOS关键词 | WHITE-LIGHT EMISSION ; X-RAY ; HYBRID PEROVSKITES ; POWDER DIFFRACTION ; IRON-OXIDE ; BISMUTH ; OXYGEN ; BI ; SUPERCONDUCTORS ; TRANSITIONS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000435932300026 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286095]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zheng, LR,Moriyoshi, C,Kuroiwa, Y,et al. Transformation of Perovskite BaBiO3 into Layered BaBiO2.5 Crystals Featuring Unusual Chemical Bonding and Luminescence[J]. CHEMISTRY-A EUROPEAN JOURNAL,2018,24(35):8875-8882. |
| APA | Zheng, LR.,Moriyoshi, C.,Kuroiwa, Y.,Ma, JP.,Guo, SQ.,...&Sun, HT.(2018).Transformation of Perovskite BaBiO3 into Layered BaBiO2.5 Crystals Featuring Unusual Chemical Bonding and Luminescence.CHEMISTRY-A EUROPEAN JOURNAL,24(35),8875-8882. |
| MLA | Zheng, LR,et al."Transformation of Perovskite BaBiO3 into Layered BaBiO2.5 Crystals Featuring Unusual Chemical Bonding and Luminescence".CHEMISTRY-A EUROPEAN JOURNAL 24.35(2018):8875-8882. |
入库方式： OAI收割
来源：高能物理研究所
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