TY - JOUR
T1 - Luminescence enhancement of rhodamine 6G in sol-gel films containing silver aggregates
AU - Reisfeld, R.
AU - Eyal, M.
AU - Brusilovsky, D.
PY - 1988/12/9
Y1 - 1988/12/9
N2 - Spectroscopic properties and lifetimes of a luminescent dye, rhodamine 6G (Rh6G), incorporated into films of sol-gel glasses in the presence of silver aggregates have been studied. The intensity of luminescence is dependent on the preparation conditions and up to a twofold enhancement of steady-state luminescence has been observed. The lifetime of Rh6G in sol-gel films is 2.9± 0.1 ns and its decay curve is exponential, while the decay curves of Rh6G in the presence of silver show a deviation from exponentiality at short (0.2-0.3 ns) times, becoming exponential with a lifetime of 2.8±0.2 ns at longer times. The presence of silver aggregates causes substantial depolarization of the luminescence.
AB - Spectroscopic properties and lifetimes of a luminescent dye, rhodamine 6G (Rh6G), incorporated into films of sol-gel glasses in the presence of silver aggregates have been studied. The intensity of luminescence is dependent on the preparation conditions and up to a twofold enhancement of steady-state luminescence has been observed. The lifetime of Rh6G in sol-gel films is 2.9± 0.1 ns and its decay curve is exponential, while the decay curves of Rh6G in the presence of silver show a deviation from exponentiality at short (0.2-0.3 ns) times, becoming exponential with a lifetime of 2.8±0.2 ns at longer times. The presence of silver aggregates causes substantial depolarization of the luminescence.
UR - http://www.scopus.com/inward/record.url?scp=0000291148&partnerID=8YFLogxK
U2 - 10.1016/0009-2614(88)85214-X
DO - 10.1016/0009-2614(88)85214-X
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AN - SCOPUS:0000291148
SN - 0009-2614
VL - 153
SP - 210
EP - 214
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 2-3
ER -