TY - JOUR
T1 - Correlation between the luminescence properties and the surface structures of submicron silica particles
AU - Inai, Seiichiro
AU - Harao, Akira
AU - Nishikawa, Hiroyuki
N1 - Funding Information:
This work is partly supported by a grant-in-aid from Nippon Sheet Glass Foundation.
PY - 2007/4/1
Y1 - 2007/4/1
N2 - We investigated the correlation between the luminescence properties and the surface structures of submicron silica particles prepared by the Stöber method. After annealing in a non-oxidizing atmosphere, the submicron-sized silica particles show a broad photoluminescence (PL) band at 500-540 nm by excitation at an ultraviolet wavelengths (254 and 365 nm), and the one at the 600 nm by excitation an Ar+ laser (488 nm). The PL appeared to result from the removal of impurities and subsequent formation of several luminescent structures on the internal surface of the primary particles by thermal annealing.
AB - We investigated the correlation between the luminescence properties and the surface structures of submicron silica particles prepared by the Stöber method. After annealing in a non-oxidizing atmosphere, the submicron-sized silica particles show a broad photoluminescence (PL) band at 500-540 nm by excitation at an ultraviolet wavelengths (254 and 365 nm), and the one at the 600 nm by excitation an Ar+ laser (488 nm). The PL appeared to result from the removal of impurities and subsequent formation of several luminescent structures on the internal surface of the primary particles by thermal annealing.
KW - Optical properties
KW - Photoluminescence
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U2 - 10.1016/j.jnoncrysol.2006.10.051
DO - 10.1016/j.jnoncrysol.2006.10.051
M3 - Article
AN - SCOPUS:33847375867
SN - 0022-3093
VL - 353
SP - 510
EP - 513
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 5-7
ER -