Please use this identifier to cite or link to this item: doi:10.22028/D291-24748
Title: Nanostructures, optical properties, and imaging application of lead-sulfide nanocomposite coatings
Author(s): Lu, Song Wei
Schmidt, Helmut K.
Language: English
Year of Publication: 2004
OPUS Source: International journal of applied ceramic technology. - 1. 2004, 2, S. 119-128
SWD key words: Nanostruktur
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Lead-sulfide (PbS) nanocrystals were precipitated in nanocomposite coatings after a pre-photo-polymerization followed by a reaction with H2S gas at 25°C for 1 hr. PbS nanocrystalline size and optical absorption increased with decreasing UV energy for prephoto-polymerization and increasing concentration. The absorption onset has a large blue shift from 0,41 eV of the corresponding bulk crystal, resulting from the quantum confinement effect. As a result, coating color changes significantly from deep brown to light yellow depending on coating processing conditions. Partially masking the coatings during pre-photo-polymerization gives rise to different colors, leading to imaging applications of PbS nanocomposite coatings.
Link to this record: urn:nbn:de:bsz:291-scidok-30739
Date of registration: 18-Feb-2011
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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