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  Factors affecting the UV-Transparency of Molecular Sieves

Engel, S., Kynast, U., Unger, K., & Schüth, F. (1994). Factors affecting the UV-Transparency of Molecular Sieves. In Studies in Surface Science and Catalysis (pp. 477-483). Amsterdam: Elsevier. doi:10.1016/S0167-2991(08)64148-8.

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 Creators:
Engel, S.1, Author
Kynast, U.2, Author
Unger, K.K.1, Author
Schüth, F.1, 3, Author           
Affiliations:
1Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg Universität Mainz, ou_persistent22              
2Philips Forschungslaboratorien Aachen, ou_persistent22              
3Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              

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 Abstract: The optical properties in the UV-region of several types of molecular sieves were studied. The initial onset of absorption around 280 nm which was observed for basically all samles synthesized without special precautions is not due to an early onset of band gap absorption, but might be correlated to the crystal size as well as structural defects within the crystals, e.g. E'-center or peroxy-radical. Using template free synthesis procedures which lead to small crystals containing few defect sites, we were able to synthesize molevular sieves which were almost completely transparent down to 200 nm. Such crystals can become very important in the development of technical luminophores.

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Language(s): eng - English
 Dates: 2008-05-291994
 Publication Status: Published in print
 Pages: -
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 Rev. Type: Peer
 Identifiers: DOI: 10.1016/S0167-2991(08)64148-8
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Title: Studies in Surface Science and Catalysis
Source Genre: Series
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 84 Sequence Number: - Start / End Page: 477 - 483 Identifier: ISSN: 0167-2991
CoNE: https://pure.mpg.de/cone/journals/resource/954926964942_2