Hybrid halobismuthates as prospective light-harvesting materials: Synthesis, crystal, optical properties and electronic structure

被引：9

作者：

Anyfantis, George C. ^{[1
]}

Ioannou, Anna ^{[1
]}

Barkaoui, Hamdi ^{[2
]}

Abid, Younes ^{[2
]}

Psycharis, Vassilis ^{[3
]}

Raptopoulou, Catherine P. ^{[3
]}

Mousdis, George A. ^{[1
]}

机构：

[1] Natl Hellen Res Fdn, Theoret & Phys Chem Inst, Vass Constantinou Ave 48, Athens 11635, Greece

[2] Univ Sfax, Fac Sci Sfax, Lab Phys Appl, BP 1171, Sfax, Tunisia

[3] NCSR, Inst Nanosci & Nanotechnol, Athens 15310, Greece

来源：

POLYHEDRON | 2020年 / 175卷

关键词：

Low-dimensional bismuth compounds; Organic-inorganic hybrid composites; Optical properties; Crystal structure; Theoretical calculations; ORGANIC-INORGANIC MATERIAL; PEROVSKITE; IODIDE; TEMPERATURE; SPECTRA; IODOBISMUTHATE; EMISSION; LENGTHS; FIELD;

D O I：

10.1016/j.poly.2019.114180

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the present paper, the synthesis, X-ray structural characterization, optical properties and electronic structures of three novel organic-inorganic hybrid compounds of the general formula [CH3SC (NH2)(2)](x)BiA(x+3), (A = I, Br, Cl, and x = 1 or 2) are reported. All of them show intense narrow excitonic peaks at the absorption spectra and narrow photoluminescence bands. In the case of (x = 1 and A = I) its structure consists of edge sharing BiI6 octahedral forming zigzag chains and in the case of (x = 2 and A = Br, Cl) their structure consists of corner sharing BiX6 octahedral also forming zigzag chains. The amine group is located in the free cavities between the chains. Their structural, optical and vibronic properties were studied. Band structure calculations were made in order to compare the results with the experimental findings and gain an insight of the properties of these new compounds. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：10

共 67 条

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