All-optical augmentation of solar cells using a combination of up- and downconversion
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Peer-reviewed
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Abstract
The limiting efficiency of a solar cell enhanced by both up- and downconversion is calculated to be 44.6% under one sun illumination using a detailed balance formalism. We show that solar cells are enhanced by both spectral conversion and photon recycling. This device architecture has the advantage of being able to enhance existing technologies after relatively few modifications. Importantly, we show that this device architecture's limiting efficiency peaks close to the band gap of silicon, unlike other spectral converters with three absorbing thresholds.
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Keywords
spectral conversion, solar cells, limiting efficiencies, upconversion, downconversion
Journal Title
Journal of Photonics for Energy
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Journal ISSN
1947-7988
1947-7988
1947-7988
Volume Title
8
Publisher
Society of Photo-Optical Instrumentation Engineers (SPIE)
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Sponsorship
Engineering and Physical Sciences Research Council (EP/M006360/1)
Engineering and Physical Sciences Research Council (EP/M024873/1)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (705113)
Engineering and Physical Sciences Research Council (EP/P027741/1)
Engineering and Physical Sciences Research Council (EP/M024873/1)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (705113)
Engineering and Physical Sciences Research Council (EP/P027741/1)
We acknowledge EPSRC and the Winton Programme for the Physics of Sustainability for funding. This work was supported by a Marie Sklodowska Curie Individual Fellowship (705113). T.W.S. acknowledges the Australian Research Council for a Future Fellowship (FT130100177). This work was supported by the Australian Research Council (Centre of Excellence in Exciton Science CE170100026).