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Sun simulators are employed to test the performance of photovoltaic (PV)\uddevices, according to the standard International Electrotechnical Commission (IEC) 61215.\udEconomical and technical analysis show that PV manufacturers need to integrate Sun\udsimulators in the production process and, in particular, at the end of the production chain in\udorder to measure the I-V curve and to evaluate the peak power of PV devices. Sun\udsimulators need specific lamps to simulate the solar spectrum and a specific filter to\udsimulate atmosphere absorbance. Such a filter can cost over €6 per square centimeter. The\udaim of this work is to develop an alternative filter. In particular, both chemical analysis and\udspectrophotometric measurements are carried out to evaluate if the Air Mass (AM) 1.5 G filter\udcan be replaced by a cheaper material. Preliminary simulations show how specific compounds\udcoated on a glass surface can absorb the Sun spectrum, such as the AM 1.5 filter, but with\udlower costs

Sun Simulators: Development of an Innovative Low Cost Film Filter