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ProvenanceCreative Commons Attribution 4.0 License, from Open Stax CNX, "An Introduction to Solar Technology" by Brittany L. Oliva-Chatelain and Andrew R. Barron,
https://cnx.org/contents/3QU3ovtd@1/An-Introduction-to-Solar-Cell-. Figure adapted from P. J. Reddy, Science and Technology of Photovoltaics, 2nd edition, CRC Press, Leiden (2010)
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