@misc{65c922e46de44fd4b1837f00ad9e4188,
title = "Photovoltaics Based on Direct and Indirect Gap Semiconductors",
abstract = "Direct and thin, or indirect and thick absorbers can yield cells close to 30% but there are practical limits due to defects, cost, reliability. Tandems and new ideas are needed to minimize thermalization and entropy losses and to enable high absorptance in thin Si layers. Direct-gap absorbers have ~1000x higher recombination losses than Si, but being 100x thinner, the limiting 1-sun efficiencies are similar due to 100x higher G.",
keywords = "direct-gap, indirect-gap, photovoltaic, PV, semiconductor, Si, silicon, tandem solar cell",
author = "Paul Stradins",
year = "2024",
language = "American English",
series = "Presented at the 2024 Silicon Workshop, 28-31 July 2024, Breckenridge, Colorado",
publisher = "National Renewable Energy Laboratory (NREL)",
address = "United States",
type = "Other",
}