Artificial light sources are essential for performance validation in photovoltaic device manufacturing and for characterization of properties such as photoconductivity and quantum efficiency in the development of new photovoltaic materials. Traditionally, characterization of photovoltaic devices has employed xenon arc or tungsten-halogen lamps typically to approximate the solar spectrum. However their spectral output is not readily amenable to controlled adjustment, and long duration (weeks to months) tests are limited by their relatively short operating lifetimes. Lumencor’s high-performance illuminators remove these limitations and introduce new capabilities such as the capacity to assemble any required spectral distribution by combining outputs from as many as 21 discrete solid-state light sources.
