IRREVERSIBLE PHOTOCHEMICAL SPECTRAL HOLE-BURNING IN QUANTUM-SIZED CDSNANOCRYSTALS EMBEDDED IN A POLYMERIC FILM

Authors
ARTEMYEV MV GAPONENKO SV GERMANENKO IN KAPITONOV AM
Citation
Mv. Artemyev et al., IRREVERSIBLE PHOTOCHEMICAL SPECTRAL HOLE-BURNING IN QUANTUM-SIZED CDSNANOCRYSTALS EMBEDDED IN A POLYMERIC FILM, Chemical physics letters, 243(5-6), 1995, pp. 450-455
Citations number
34
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
243
Issue
5-6
Year of publication
1995
Pages
450 - 455
Database
ISI
SICI code
0009-2614(1995)243:5-6<450:IPSHIQ>2.0.ZU;2-2
Abstract
The effect of permanent hole burning is studied in the absorption spec tra of quantum-sized CdS nanocrystals embedded in a polymeric film. Th e prolonged UV irradiation of CdS particles with mean diameter of abou t 3 nm and wide size distribution results in the formation of well-res olved dips with full-width of about 100-120 meV at room temperature. T he selected photoexcitation of appropriate QS CdS nanocrystals is foll owed by their ionization and further irreversible oxidation of CdS pha se by holes h(+).