Self-absorption correction for solid-state photoluminescence quantum yields obtained from integrating sphere measurements.
A new method is presented for analyzing the effects of self-absorption on photoluminescence integrating sphere quantum yield measurements. Both the observed quantum yield and luminescence spectrum are used to determine the self-absorption probability, taking into account both the initial emission and subsequent absorption and reemission processes. The analysis is experimentally validated using the model system of the laser dye perylene red dispersed in a polymer film. This approach represents an improvement over previous methods that tend to overestimate the true quantum yield, especially in cases with high sample absorbance or quantum yield values.
Ahn
Tai-Sang
TS
Department of Chemistry, University of California, Riverside, CA 92521, USA.
Al-Kaysi
Rabih O
RO
Müller
Astrid M
AM
Wentz
Katherine M
KM
Bardeen
Christopher J
CJ
D000465:Algorithms; D016477:Artifacts; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008163:Luminescent Measurements / Q000295:instrumentation / Q000379:methods*; D008872:Microwaves; D011789:Quantum Theory; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity