TY - JOUR
T1 - Organic fluorescent dyes trapped in silica and silica-titania thin films by the sol-gel method. Photophysical, film and cage properties
AU - Avnir, David
AU - Kaufman, Vered R.
AU - Reisfeld, Renata
PY - 1985/11/1
Y1 - 1985/11/1
N2 - The sol-gel process is utilized to solve the notorious problem of incorporating an organic dye in an inorganic oxide thin film. Fluorescent thin films are prepared by this low temperature process with the aid of a surface active agent, with good homogeneity and reproducability. A variety of organic fluorescent molecules are embeded either in silica or in silica-titania films. The dye molecules are not leached out by water. Absorption and emission spectra, enhanced photostability, longer lifetimes and energy transfers between the trapped dye molecules are described and discussed in terms of the effects of molecule matrix-isolation on these properties. Potential uses of the special thin films are numerous, e.g., as laser or solar light guides.
AB - The sol-gel process is utilized to solve the notorious problem of incorporating an organic dye in an inorganic oxide thin film. Fluorescent thin films are prepared by this low temperature process with the aid of a surface active agent, with good homogeneity and reproducability. A variety of organic fluorescent molecules are embeded either in silica or in silica-titania films. The dye molecules are not leached out by water. Absorption and emission spectra, enhanced photostability, longer lifetimes and energy transfers between the trapped dye molecules are described and discussed in terms of the effects of molecule matrix-isolation on these properties. Potential uses of the special thin films are numerous, e.g., as laser or solar light guides.
UR - http://www.scopus.com/inward/record.url?scp=0022160945&partnerID=8YFLogxK
U2 - 10.1016/0022-3093(85)90081-X
DO - 10.1016/0022-3093(85)90081-X
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AN - SCOPUS:0022160945
SN - 0022-3093
VL - 74
SP - 395
EP - 406
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 2-3
ER -