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Comparisons of IV Curves between Xenon Lamp-Based and LED-Based Solar Simulators

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Comparisons of IV Curves between Xenon Lamp-Based and LED-Based Solar Simulators

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Advancements in LED technology are providing novel test and measurement equipment to aid research in new PV cells. The new AAA VeraSol from Oriel Instruments is an LED-based solar simulator which offers numerous advantages over previous lampbased AAA solar simulators. With an equivalent spectral match, irradiance uniformity, and temporal stability, the VeraSol has a filter-free, variable intensity output from 0 to 1 sun. The LEDs are electrically gated and can be turned on or off in less than 100ms without requiring a mechanical shutter for PV IV characterization. The user is granted custom spectral control over the entire AM1.5G spectrum. Functionally, the LEDs have inherently longer lamp lifetime, consume less power, and require less mechanical cooling, which further simplifies the instrument.

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