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- W2902686475 abstract "We study efficiency loss mechanisms and the Potential for improvement of a record-setting monochromatic photovoltaic device, which has demonstrated efficiency of 70% at $830 mathrm {n}mathrm {m}$. We combine experimental and modeling-based estimates of losses due to reflection, transmission, thermalization, and series resistance into an extended detailed-balance model that further includes losses due to nonradioactive recombination, quantified by an external radioactive efficiency (ERE). From the device's efficiency, we estimate ERE $geq10$%. The device efficiency could be improved by increased material quality, operation at a longer wavelength closer to the Gas band gap, and increased light intensity. Each order of magnitude increase in incident light intensity or material ERE increases the efficiency by 4% absolute. Redesigning the device to operate at 850 nm reduces thermalization losses by 2% absolute. Overall device efficiency over 80% could be attained by combining these opportunities." @default.
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- W2902686475 date "2018-06-01" @default.
- W2902686475 modified "2023-09-26" @default.
- W2902686475 title "Opportunities for Increased Efficiency in Monochromatic Photovoltaic Light Conversion" @default.
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- W2902686475 doi "https://doi.org/10.1109/pvsc.2018.8547912" @default.
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