Absorption and fluorescence spectroscopy of rhodamine 6G in titanium dioxide nanocomposites.
A comparison has been made between the spectroscopic properties of the laser dye rhodamine 6G (R6G) in mesostructured titanium dioxide (TiO(2)) and in ethanol. Steady-state excitation and emission techniques have been used to probe the dye-matrix interactions. We show that the TiO(2)-nanocomposite studied is a good host for R6G, as it allows high dye concentrations, while keeping dye molecules isolated, and preventing aggregation. Our findings have important implications in the context of solid state dye-lasers and microphotonic device applications.
Vogel
R
R
Department of Physics and Centre for Biophotonics and Laser Science, University of Queensland, St Lucia Campus, Brisbane, Queensland 4072, Australia.
Meredith
P
P
Harvey
M D
MD
Rubinsztein-Dunlop
H
H
D004396:Coloring Agents / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry; D008027:Light; D036103:Nanotechnology; D012235:Rhodamines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013053:Spectrophotometry / Q000379:methods*; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
D004396:Coloring Agents; D012235:Rhodamines; C009495:titanium dioxide; D000431:Ethanol; D014025:Titanium