期刊
CURRENT APPLIED PHYSICS
卷 4, 期 6, 页码 599-602出版社
ELSEVIER
DOI: 10.1016/j.cap.2004.01.027
关键词
quantum confinement effect; perovskite; polycrystalline thin films; optical absorption and emission spectroscopy
Phenethylammonium-based perovskites, which can be regarded as a semiconductor/insulator multiple quantum well consisting of lead halide semiconductor layers sandwiched between phenethylammonium insulator layers were prepared. To investigate the effects of the electronic state and the orientation of organic insulator layers on the optical properties of layered perovskites, fluorine substituted analogues were also prepared. The structure and optical properties were investigated by the XRD, UV-Vis absorption, and fluorescence measurements. The exciton absorption peak was shifted by the substitution of fluorine atoms in organic ammonium compounds. It became clear that the optical properties of two-dimensional perovskite compounds were controlled by the substitution of fluorine atoms. (C) 2004 Elsevier B.V. All rights reserved.
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