Other

Lloyd Harriott

John C Bean

Joe C Campbell

Boris Gelmont

Tatiana Globus

Pineas Paxton Marshall

Naser Alijabbari

A photovoltaic structure for absorption from the solar spectrum, includes a light transmitting substrate layer, a transparent electrode layer on the substrate layer, a direct band-gap, wide band-gap, nanocrystalline or microcrystalline, think film semiconducting first layer on the transparent electrode layer, a second think film layer comprising a narrow band-gap semiconductor on the first layer a second electrode layer on the second think film layer, and a protective layer on the second electrode layer. The structure has a hetero-structure at the boundary between the wide-band-gap layer and the second thin film layer. The second layer can be chalcogenide salt having an average thickness of 0.4 to 1.2 &#x3bc;m, and preferably an average thickness of 0.5 to 0.6 &#x3bc;m. The chalcogenide salt layer is a lead chalcogenide, such as a nanocrystaline lead sulfide, nanocrystalline lead selenide, or a nanocrystalline lead telluride.

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Charlottesville, VA, United States of America

Lloyd Harriott