New type of flexible perovskite solar cell appears to break record in efficiency under indoor light

ENERGY TREND | Installing PV systems inside a building seems to defy common sense, but it is justifiable on practical grounds. Since PV cells absorb a certain range of wavelengths from solar radiation to generate electricity, they can also do the same with light produced by indoor lighting fixtures.While artificial sources of light have their own spectrums that allow for light of different colors, these spectrums generally fall within the same range of wavelengths used by PV cells. Recently, a team of researchers from three countries have developed a type of flexible perovskite PV cell that achieves a new high in conversion efficiency in an indoor environment compared with the devices of similar types.Its members are from Italy’s Tor Vergata University of Rome, Colombia’s Universidad Surcolombiana (South Colombian University), and Germany’s Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology (FEP).

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