A method for measuring the photoluminescent quantum yields (PLQY) of luminescent organic dyes is presented. The self-absorption probability calculated at different dye concentrations is used to determine the absolute quantum yield from the observed values. The results for a range of commercially available dyes show high quantum yields, even at high concentrations, and an absence of quenching. The PLQY of several dye mixtures are also presented. The results indicate an absence of any reduction of PLQY in a dye mixture as compared with the individual PLQY of the dyes.
© 2009 Optical Society of America
Original Manuscript: July 15, 2008
Revised Manuscript: November 29, 2008
Manuscript Accepted: December 1, 2008
Published: January 7, 2009
L. R. Wilson and B. S. Richards, "Measurement method for photoluminescent quantum yields of fluorescent organic dyes in polymethyl methacrylate for luminescent solar concentrators," Appl. Opt. 48, 212-220 (2009)