title: Absolute determination of photoluminescence quantum efficiency using an integrating sphere setup.
abstract: An integrating sphere-based setup to obtain a quick and reliable determination of the internal quantum efficiency of strongly scattering luminescent materials is presented. In literature, two distinct but similar measurement procedures are frequently mentioned: a "two measurement" and a "three measurement" approach. Both methods are evaluated by applying the rigorous integrating sphere theory. It was found that both measurement procedures are valid. Additionally, the two methods are compared with respect to the uncertainty budget of the obtained values of the quantum efficiency. An inter-laboratory validation using the two distinct procedures was performed. The conclusions from the theoretical study were confirmed by the experimental data.
authors.affiliation: ESAT/Light and Lighting Laboratory, KU Leuven, Technology Campus Ghent, Ghent 9000, Belgium.
authors.forename: S
authors.initials: S
authors.lastname: Leyre
authors.affiliation: Department of Chemistry, KU Leuven, Leuven 3001, Belgium.
authors.forename: E
authors.initials: E
authors.lastname: Coutino-Gonzalez
authors.affiliation: LumiLab, Department of Solid State Sciences, Ghent University, Ghent 9000, Belgium.
authors.forename: J J
authors.initials: JJ
authors.lastname: Joos
authors.affiliation: ESAT/Light and Lighting Laboratory, KU Leuven, Technology Campus Ghent, Ghent 9000, Belgium.
authors.forename: J
authors.initials: J
authors.lastname: Ryckaert
authors.affiliation: ESAT/Light and Lighting Laboratory, KU Leuven, Technology Campus Ghent, Ghent 9000, Belgium.
authors.forename: Y
authors.initials: Y
authors.lastname: Meuret
authors.affiliation: LumiLab, Department of Solid State Sciences, Ghent University, Ghent 9000, Belgium.
authors.forename: D
authors.initials: D
authors.lastname: Poelman
authors.affiliation: LumiLab, Department of Solid State Sciences, Ghent University, Ghent 9000, Belgium.
authors.forename: P F
authors.initials: PF
authors.lastname: Smet
authors.affiliation: ESAT/Light and Lighting Laboratory, KU Leuven, Technology Campus Ghent, Ghent 9000, Belgium.
authors.forename: G
authors.initials: G
authors.lastname: Durinck
authors.affiliation: Department of Chemistry, KU Leuven, Leuven 3001, Belgium.
authors.forename: J
authors.initials: J
authors.lastname: Hofkens
authors.affiliation: ESAT/ELECTA, KU Leuven, Leuven 3001, Belgium.
authors.forename: G
authors.initials: G
authors.lastname: Deconinck
authors.affiliation: ESAT/Light and Lighting Laboratory, KU Leuven, Technology Campus Ghent, Ghent 9000, Belgium.
authors.forename: P
authors.initials: P
authors.lastname: Hanselaer