We demonstrate that absolute measurements of the photoluminescence quantum yield of solutions can be made using an integrating sphere and a conventional fluorimeter. With this method the need for measurements against a luminescence standard is overcome. The sphere is mounted inside a commercial fluorimeter, which gives flexibility in excitation and emission wavelength ranges. A number of compounds have been investigated and the results are compared to literature values and data obtained using a comparative method.
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ACKNOWLEDGMENTS
We gratefully acknowledge the assistance of Mr J. Hodgson and Mr N. Holmes of the Department of Chemistry mechanical workshop. We also thank Miss Karen Findlay for assistance with some of measurements and Prof Todd B. Marder (Durham University) for providing some of the compounds. A.B., L.P., L.O.P., and A.P.M. thank OneNorth East and CENAMPS for funding through the Nanotechnology IUC Programme.
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Porrès, L., Holland, A., Pålsson, LO. et al. Absolute Measurements of Photoluminescence Quantum Yields of Solutions Using an Integrating Sphere. J Fluoresc 16, 267–273 (2006). https://doi.org/10.1007/s10895-005-0054-8
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DOI: https://doi.org/10.1007/s10895-005-0054-8