Abstract—An improved Tungsten light source system for
photovoltaic cell testing constructed from low-cost,
commercially available materials is presented as an alternative
to current high-cost solar simulators. In this work, spectral
correction of the Tungsten light source is achieved by
increasing the colour temperature to ~5200 K using
inexpensive commercially available filters. Spectral
measurements of the corrected light source reveal that a better
spectrum match towards the solar spectrum is achieved than
what has been previously demonstrated by our team.
Specifically, the improved solar spectrum match is achieved by
substantial filtering of the infrared range. The proposed setup
is used to evaluate the performance of both silicon and organic
based solar cells.