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Synthesis and characterization of layered perovskite-type organic-inorganic hybrids (R-NH3)2(CH3NH3)Pb2I7

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Abstract

Layered organic-inorganic hybrids containing bilayer perovsikte (R-NH3)2(CH3NH3)Pb2I7 (where R=C12H25,C6H5C2H4) were synthesized by reactions in solution. The influences of the solvents and the reactant ratio on the structures of the products were investigated. The structures and the properties of the hybrids were characterized using X-ray diffraction (XRD) and ultraviolet and visible (UV) adsorption spectra. For comparing with the bilayer perovskite hybrids in structure and band gap magnitude, the hybrids containing monolayer perovskite (R-NH3)2PbI4 were also synthesized and characterized. The results demonstrate that the thickness of inorganic layer has obvious effect on the tunneling magnitude of the band gap but the organic part can be micro actuator of band gap.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China

    Liling Guo  (郭丽玲), Zhang Sun, Guanghui Zhao, Xing Li & Hanxing Liu

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  1. Liling Guo  (郭丽玲)
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  2. Zhang Sun
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  3. Guanghui Zhao
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  4. Xing Li
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  5. Hanxing Liu
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Correspondence to Liling Guo  (郭丽玲).

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Funded by National Natural Science Foundation of China(No. 50972113)

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Guo, L., Sun, Z., Zhao, G. et al. Synthesis and characterization of layered perovskite-type organic-inorganic hybrids (R-NH3)2(CH3NH3)Pb2I7 . J. Wuhan Univ. Technol.-Mat. Sci. Edit. 27, 957–961 (2012). https://doi.org/10.1007/s11595-012-0581-5

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  • DOI: https://doi.org/10.1007/s11595-012-0581-5

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