八面体
光致发光
结晶学
表征(材料科学)
谱线
单晶
化学
晶体结构
吸收光谱法
Crystal(编程语言)
红外光谱学
钙钛矿(结构)
材料科学
物理
纳米技术
有机化学
量子力学
光电子学
程序设计语言
计算机科学
天文
作者
George C. Papavassiliou,George A. Mousdis,Catherine P. Raptopoulou,Aris Terzis
标识
DOI:10.1515/znb-1999-1112
摘要
The preparation, crystal structures, optical absorption spectra, and photoluminescence spectra of the title compounds are reported. The compounds were prepared in single crystal form. [C 6 H 5 CH 2 NH 3 ] 2 PbI 4 consists of anionic perovskite sheets of corner-sharing Pbl 6 octahedra, which alternate with the C 6 H 5 CH 2 NH 3 + sheets. [ C 6 H 5 CH 2 CH 2 SC(NH 2 ) 2 ] 3 PbI 5 consists of zig-zag chains of anionic corner sharing PbI 6 octahedra separated by C 6 H 5 CH 2 CH 2 SC(NH 2 ) 2 cations. [C 10 H 7 CH 2 NH 3 ]Pbl 3 consists of twin chains of edge-sharing PbI 6 octahedra separated by C 10 H 7 CH 2 NH 3 cations. The compounds are thus low-dimensional systems. The excitonic spectra were observed in all cases, even at room temperature, and the possibility of organicinorganic excitonic interactions is discussed.
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