I have a photodetector with calibrated spectral response data. What does it mean to normalize photocurrent spectral with respect to the detector's spectral response, and how do I go about doing that?
Foton için akımın özelliklerini detektöre uyarlamak demektir. Akımın sahip olduğu her türlü fiziksel,kimyasal ve foton için radyoaktif özelliği detektöre uygun hale getirmek gerekiyor.
I am assuming that you are doing a photo-current spectroscopy measurement on some sample with a light source of tunable wavelength (it could be a tunable laser or white light + monochromator combination). Since the light source will not have the same intensity at all wavelengths, you need to account for this in the photo-current (PC) measurement.
So let us say the wavelength Lmd dependence of the source was Io(Lmd) so the PC signal Spc ~Io(Lmd)PC(Lmd). So to get PC(Lmd) you need Io(Lmd). Now if you have a detector with known response R(Lmd) then if you replace the sample with the detector then you get a signal Sd~Io(Lmd)R(Lmd).
Now you if you divide the two signals you get Spc/Sd =PC(Lmd)/R(Lmd). If you now multiply Spc/Sd with R(Lmd) you will get PC(Lmd). This is referred to normalization of photo-current spectrum.
So, my interpretation is that Spc(Lmd) is the raw photocurrent spectra of a test device (let's say, a solar cell), Sd(Lmd) is the raw photocurrent spectra of the detector, and PC(Lmd) is the normalized photocurrent spectra. Wouldn't PC(Lmd) also be the spectral response of the test device? Did I interpret that correctly?
- Badges
- Science topic
- Similar topics
- Chemistry, Organic
- Organic