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Transformation of Perovskite BaBiO3 into Layered BaBiO2.5 Crystals Featuring Unusual Chemical Bonding and Luminescence
Li, H; Zhao, Q; Liu, BM; Zhang, JY; Li, ZY; Guo, SQ; Ma, JP; Kuroiwa, Y; Moriyoshi, C; Zheng, LR; Sun, HT; Zheng LR(郑黎荣)
2018
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
ISSN0947-6539
EISSN1521-3765
Volume24Issue:35Pages:8875-8882
SubtypeArticle
AbstractEngineering 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.
Keywordbismuth layered structures luminescence phase transitions solid-state structures
DOI10.1002/chem.201801257
WOS KeywordWHITE-LIGHT EMISSION ; X-RAY ; HYBRID PEROVSKITES ; POWDER DIFFRACTION ; IRON-OXIDE ; BISMUTH ; OXYGEN ; BI ; SUPERCONDUCTORS ; TRANSITIONS
Indexed BySCI ; EI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000435932300026
EI Accession Number20182305271652
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286095
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Li, H,Zhao, Q,Liu, BM,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 Li, H.,Zhao, Q.,Liu, BM.,Zhang, JY.,Li, ZY.,...&郑黎荣.(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 Li, H,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.
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