Paper Title:
Preparation and Optical Properties of Thin-Films of Layered Perovskite-Type Hybrid Compounds (CnH2n+1 NH3)2 PbX4
  Abstract

Thin films of organic-inorganic hybrids (CnH2n+1NH3)2PbX4(X=Cl, Br, I; n=4,6,8,10) were prepared by the spin-coating method. The influences of annealing temperature on the crystal structure of the films were analyzed by X-ray diffraction(XRD). The surface morphology of the films were observed using scanning electronic microscope(SEM). The room-temperature UV-Vis absorption spectra of the films were employed to examine the effect on the optical properties of different elements X (X=Cl,Br,I), and varying n from 4 to 10, respectively. The results showed that a significant red shift of the absorption peak was observed for different X in inorganic layers, and the position of the exciton absorption peaks did not shift obviously with the increasing of the alkyl chain length in organic layers. The results suggested that the exciton absorption arise from electronic transitions within the inorganic layer, rather than from the organic layer.

  Info
Periodical
Solid State Phenomena (Volume 111)
Edited by
Cheng-Jun Sun, Jun Ding, Manoj Gupta, Gan-Moog Chow, Lynn Kurihara and Lawrence Kabacoff
Pages
119-122
DOI
10.4028/www.scientific.net/SSP.111.119
Citation
K.Y. Shi, L.L. Guo, H.X. Liu, L. Zou, S.F. Ying, "Preparation and Optical Properties of Thin-Films of Layered Perovskite-Type Hybrid Compounds (CnH2n+1 NH3)2 PbX4 ", Solid State Phenomena, Vol. 111, pp. 119-122, 2006
Online since
April 2006
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$32.00
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