PVSAT-9, Swansea, 10 Apr 2013 – 12 Apr 2013. 107-110. 10 Apr 2013
The effects of lamp age on the spectral out-put of solar simulator xenon flash lamps and spectral output measurement uncertainty on the spectral mismatch are investigated. Measurements over the life-time of several sets of bulbs showed large unexpected variations due measurement uncertainty in spectral measurements themselves. The main influencing factors are investigated and a faulty temperature control is found to be the main source of uncertainty. It is shown that this alone can affect the mismatch calculation to a larger degree than the MMF would correct in itself.