TY  - MGZN
T1  - Nanostructures, optical properties, and imaging application of lead-sulfide nanocomposite coatings
T3  - International journal of applied ceramic technology. - 1. 2004, 2, S. 119-128
A1  - Lu,Song Wei
A1  - Schmidt,Helmut K.
Y1  - 2011/02/18
N2  - 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.
KW  - Nanostruktur
KW  - Blei
KW  - Sulfide
KW  - Nanokristall
KW  - Nanokomposit
KW  - Absorption
CY  - Saarbrücken
PB  - Universitäts- und Landesbibliothek
AD  - Postfach 151141, 66041 Saarbrücken
UR  - http://scidok.sulb.uni-saarland.de/volltexte/2011/3073
ER  -