科创中国

Synthesis and Characterization of Layered Perovskite-type Organic-inorganic Hybrids (R-NH_3)_2(CH_3NH_3)Pb_2I_7

原文链接：万方

• 作者：

  郭丽玲

• 摘要：

  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.

• 关键词：

  layered structure organic-inorganic perovskite-type hybrid band gap

• 作者单位：

  School of Materials Science and Engineering%Wuhan University of Technology

• 基金项目：

  National Natural Science Foundation of China(No.50972113)

• 来源期刊：

  武汉理工大学学报(材料科学版)(英文版)

• 年，卷(期)：

  2012005