Three new lead iodide chain compounds, APbI3, templated by molecular cations
Abstract
The crystal structures of three new hybrid organic-inorganic lead halide compounds [IqH]PbI3, [4MiH]PbI3, and [BzH]PbI3 ([IqH+] = isoquinolinium, [4MiH+] = 4-methylimidazolium, [BzH+] = benzotriazolium) have been determined by single crystal x-ray diffraction. All three compounds have the same generic formula as perovskite, ABX3, but adopt a rare non-perovskite structure built from one dimensional (1D) edge-sharing octahedral chains. The bandgap of each compound was investigated by solid UV–Vis spectra. In comparison with previously reported hybrid compounds containing the same type of octahedral chains, [C10H7CH2NH3]Pbl3 and (C7H7N2)PbI3, all three new compounds have lower bandgaps (<2.4 ev), indicating that they may be promising for photovoltaic application.
Citation
Guo , Y-Y , Yang , L-J & Lightfoot , P 2019 , ' Three new lead iodide chain compounds, APbI 3 , templated by molecular cations ' , Crystals , vol. 9 , no. 12 , 616 . https://doi.org/10.3390/cryst9120616
Publication
Crystals
Status
Peer reviewed
ISSN
2073-4352Type
Journal article
Description
This research was funded by the China Scholarship Council, grant number 201603780005” the University of St Andrews.Collections
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