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  Home > JCE Print > Journal of Chemical Education > Issues > 2002  > November  >
Research: Science and Education
How Does Light Scattering Affect Luminescence? Fluorescence Spectra and Quantum Yields in the Solid Phase
M. Gabriela Lagorio and Enrique San Román
INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Universidad de Buenos Aires, Buenos Aires, Argentina
Cover
November 2002
Vol. 79 No. 11
p. 1362
Abstract
Fluorescence quantum yields and luminescence spectra for solid samples are presented and interpreted. Re-absorption of the emitted light is very important in these systems causing a decrease in the observed luminescence quantum yield as well as distortions in emission spectra (usually a shift to longer wavelengths). These processes affect far more the emission from thick layers than from thin layers of scattering materials. Quantitative corrections due to light re-absorption and re-emission processes are introduced. This manuscript summarizes the practical cautions to be taken into account to avoid misunderstanding or false results when dealing with luminescence data in the presence of light scattering.
More Information
*  Citation
 Lagorio, M. Gabriela; San Román, Enrique. J. Chem. Educ. 2002 79 1362.
*  Keywords
 Fluorescence Spectrometry; Instrumental Methods; Luminescence; Photochemistry; Physical Chemistry; Solids
*  History
 Created:
Last Updated:		 September 30, 2002
March 16, 2005
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