The standard power used in photocatalysis is 100mW/cm2. But no one really mentions what wavelength the power meter generally set to measure the intensity. I have seen cases where they measure the intensity at specific wavelengths (e.g. 400nm, 450nm, ..., 700nm) then add them up to get the total intensity.
What is the common way?
Ruggero Bonetto
Hi,
You may either try to calibrate your power meter vs a known reference sensor that has been previously calibrated at 100 mW/cm2 or integrate the power meter response over the full spectral function of the light source, since one wouldn't use only one wavelength to calibrate for a polychromatic light source.
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