학술논문
Spectral and Aggregation Properties of Phenylthio-Substituted Al-Phthalocyanine Molecules in Nanoporous Silicate Matrices.
Document Type
Article
Source
Subject
*POLYVINYL butyral
*EXCITATION spectrum
*FLUORESCENCE spectroscopy
*SILICATES
*MATRICES (Mathematics)
*METAL phthalocyanines
*PHTHALOCYANINE derivatives
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Language
ISSN
0021-9037
Abstract
The absorption, fluorescence, and fluorescence excitation spectra of phenylthio-substituted Al-phthalocyanine in solutions, polyvinyl butyral films, and silicate gel matrices at room temperature were studied. It was found that monomeric fluorescent forms of impurity molecules are formed not only in ethanol and polyvinyl butyral but also in inorganic and organic-inorganic silicate matrices colored by the direct sol–gel synthesis method. It was shown that nonfluorescent aggregates, presumably of the H-type, are formed when the tetraethoxysilane matrix is stained by the impregnation method. The obtained solid silicate matrices can be used as multipurpose luminescent materials for the near-IR region. [ABSTRACT FROM AUTHOR]