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Characterization of Rhodamine 6G-Doped Thin Sol-Gel Films
Volume 47, Number 2 (Feb. 1993) Page 229-234
Narang, Upvan; Bright, Frank V.; Prasad, Paras N.
Rhodamine 6G- (R6G) doped thin sol-gel films were cast on glass microscope slides and characterized with the use of steady-state and time-resolved fluorescence spectroscopy. The fluorescence intensity, photo-degradation under laser illumination, and excited-state decay kinetics were all investigated as a function of dopant concentration. The excited-state decay kinetics of highly doped films show clear evidence of R6G aggregation. Photodegradation under laser illumination is very interesting and is discussed in detail.