I want to measure the PL decay time of CdSe/ZnS QDs spin coated on glass and nickel oxide thin film separately. Unfortunately, I do not have access to a time resolved PL system. I'm looking for some alternate techniques to measure the PL decay time.
I am not an expert in PL, so take my answer as a suggestion or a reflection.
thinking about your problem, I was reasoning that we can measure light by means of its spectral and temporal content. In principle if you have a complex measurement, i.e. in amplitude and phase, of the spectrum of your sample you could reconstruct its temporal amplitude and phase with a Gerchberg - Saxton algorithm. From temporal amplitude you obtain the intensity that is what you want, as far as I understand.
However depending on your experimental apparatus, you could find another way. I imagine that you do have photodetectors and short excitation pulse, but your detectors are too slow. if this is the case, I would try to overcome where possible this restriction (deconvolute the measured time trace with the instrument response) , at least you ll have an estimation
hope this help
You can use fast Oscilloscope ( 2.5 Ghz or so) and fast detector ( 100's of ps or less) to measure time resolved PL decay. This will have low Signal Noise Ratio.
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