Three new lead iodide chain compounds, APbI3, templated by molecular cations
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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.
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
Copyright © 2019 The Author(s). This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
DescriptionThis research was funded by the China Scholarship Council, grant number 201603780005” the University of St Andrews.
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