Preparation and optical properties of nanocrystalline (C6H5C2H4NH3)2PbI4-doped PMMA films |
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| Authors: | N Kitazawa |
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| Affiliation: | (1) Department of Materials Science and Engineering, National Defence Academy, 1-10-20 Hashirimizu, Yokosuka Kanagawa, 239, Japan |
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| Abstract: | Nanocrystalline (RNH3)2PbI4-doped PMMA films were successfully fabricated on glass substrates by the spin-coating technique and subsequent annealing. X-ray diffraction spectra revealed that the (RNH3)2PbI4 crystals dispersed as nanometre-sized crystals in the PMMA matrix. These films showed a strong exciton absorption band with narrow bandwidth, even at room temperature. The exciton absorption observed here could be attributed to the 6s to 6p transition of Pb2+. The stability of the (RNH3)2PbI4 crystal was improved by doping these crystals into a PMMA matrix. © 1998 Chapman & Hall |
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