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Proceedings Paper

Q-dots and Q-wires in the microporous and mesoporous zeolite as matrix host-guest and guest-guest interaction
Author(s): German M. Tel'biz; Olexyi V. Shvets; Michail S. Brodyn; Volodymyr L. Vozny
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Paper Abstract

We report here on the development of host-guest and guest-guest interaction in course of preparation procedures semiconductor clusters (CdS, PbI2), in zeolite (FAU,LTL) matrix. Optical properties of practically unexplored PbI2/zeolite LTL system have been investigated. Both in absorption (reconstructed from diffuse reflection via Kubelka-Munk function) and luminescence spectra the features were observed at energies much exceeding the excitation resonance energy Eex in bulk PbI2. This is considered as an indication of size quantization through the unambiguous attribution of the respective transitions requires further studies, including theoretical ones. For the samples with relatively high PbI2 content the narrow emission peak only slightly blue-shifted from Eex was observed and attributed to long clusters formed inside the main channels of zeolite LTL lattice and possible retaining the layer structure of bulk PbI2. The gradual disappearance of this peak during the storage of samples in the air is explained by assuming that originally formed long clusters undergo fragmentation into smaller species.

Paper Details

Date Published: 17 April 2001
PDF: 7 pages
Proc. SPIE 4413, International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology, (17 April 2001); doi: 10.1117/12.425424
Show Author Affiliations
German M. Tel'biz, Institute of Physical Chemistry (Ukraine)
Olexyi V. Shvets, Institute of Physical Chemistry (Ukraine)
Michail S. Brodyn, Institute of Physics (Ukraine)
Volodymyr L. Vozny, Institute of Physics (Ukraine)


Published in SPIE Proceedings Vol. 4413:
International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology
Jaroslaw Rutkowski; Jakub Wenus; Leszek Kubiak, Editor(s)

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