I want to use a Ultra-high-performance lamp as a light source in measuring the J-V curve of solar cell. But I want to know first the full spectrum of this lamp. does it emits in the UV range or only the visible and IR range?
This PDF from newport has a lot of information, solar spectrum, and simulator spectrums. In particular, see figure 5 and figure 12
If you are sampling just a small piece of solar cell, you can simplify your problem by getting LED each for particular wavelength of spectrum. Then test the sample by each LED in sequence to get a full spectrum. The resolution of the this will be low in J-V curve making however it is an inexpensive approach. The obvious but expensive and solution will be monochromator. It will give you accurate full spectrum curve plot. Unless you have lots of time and resources, you can build one with xenon and tungsten halogen lamps. Each lamp has its own wavelength range. A combination of two will give you a full spectrum range you are asking for.
I already tried a Xenon lamp as the light source, but the homogeneity was so bad even by using a car reflector. Now I am planning to use Ultra high performance lamp such as used in media projector with its own reflector as the light source for solar cell characterization. But I just if any one knows the full spectrum of these types of lamps.
Perhaps the simplest and least expensive solution is the ELH lamp, used in slide projectors and the fit for the solar spectrum is reasonable for some purposes. Attached is a paper about solar simulation with spectra for various lamps. If you use a slide projector, be aware that they sometimes include an IR filter which would possibly change the spectrum and would have to be removed.
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