TUNGSTEN DYE INDUCED FAST BLUE VIOLET PHOTOLUMINESCENCE FROM NANOCRYSTALLINE SILICON-SILICA COMPOSITE THIN-FILMS

Authors
VEPREK S RUCKSCHLOSS M WIRSCHEM T LANDKAMMER B FUSS M LIN X
Citation
S. Veprek et al., TUNGSTEN DYE INDUCED FAST BLUE VIOLET PHOTOLUMINESCENCE FROM NANOCRYSTALLINE SILICON-SILICA COMPOSITE THIN-FILMS, Applied physics letters, 67(15), 1995, pp. 2215-2217
Citations number
28
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
67
Issue
15
Year of publication
1995
Pages
2215 - 2217
Database
ISI
SICI code
0003-6951(1995)67:15<2215:TDIFBV>2.0.ZU;2-0
Abstract
Doping of the nanocrystalline-Si/SiO2 composite material with tungsten results in a quenching of the ''red'' photoluminescence (PL) and an a ppearance of an intense blue/violet one with a spectral maximum around 2.8 eV and decay time of less than or equal to 3 ns. Unlike the green /blue PL from silanol groups, this PL is stable upon annealing and doe s not show any polarization memory. A possible mechanism of this PL is suggested. (C) 1995 American Institute of Physics.