Theingi, San and Needell, David R. and Bauser, Haley and Phelan, Megan and Nemeth, William and Findley, Dawn and Su, Hanxiao and Koscher, Brent and Nett, Zach and Ilic, Ognjen and Bukowsky, Colton R. and Nuzzo, Ralph and Alivisatos, A. Paul and Geisz, John and Stradins, Paul and Atwater, Harry A. (2019) Luminescent Solar Concentrator Tandem-on-Silicon with above 700mV Passivated Contact Silicon Bottom Cell. In: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC). IEEE , Piscataway, NJ, pp. 747-749. ISBN 978-1-7281-0494-2. https://resolver.caltech.edu/CaltechAUTHORS:20200214-091130481
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Abstract
Luminescent solar concentrator (LSC) tandem-on-silicon (Si) provides a route towards achieving higher than 30% overall efficiency which can overcome the theoretical efficiency limit of a single junction Si cell. Here, we present optical coupling and performance of high V oc passivated contact Si bottom cell for LSC tandem-on-Si where the top module consists of highly efficient luminophores and an array of micro InGaP cells embedded in a poly (lauryl methacrylate) waveguide. In this device configuration, InGaP cell area coverage is only ~0.5% of the total LSC area which significantly reduces the high cost III-V material usage. The performance of Si sub-cell is investigated under LSC spectrum and is compared against the measurement done under 1 μm thick InGaP filter which mimics the spectrum seen by Si bottom cell in a conventional III-V/Si tandem. V_(oc) of greater than 700 mV has been observed for the passivated contact Si bottom cell in these tandem applications.
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| Additional Information: | © 2019 IEEE. This work is made possible by the Advanced Research Projects Agency for Energy (ARPA-E) U.S. Department of Energy grant under the Micro-scale Optimized Solar-cell Arrays with Integrated Concentration (MOSAIC) award, DEAR0000627. We additionally acknowledge Jinko Cells and Evaporated Coatings Inc. (ECI) in collaboration for providing p-PERC cells and the design and fabrication of the spectrally-selective waveguide filter. | ||||||||||||||||||||||||
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| Subject Keywords: | passivated contact cells, luminescent solar concentrator, silicon | ||||||||||||||||||||||||
| DOI: | 10.1109/pvsc40753.2019.8980809 | ||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20200214-091130481 | ||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200214-091130481 | ||||||||||||||||||||||||
| Official Citation: | S. Theingi et al., "Luminescent Solar Concentrator Tandem-on-Silicon with above 700mV Passivated Contact Silicon Bottom Cell," 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, USA, 2019, pp. 0747-0749. doi: 10.1109/PVSC40753.2019.8980809 | ||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||
| ID Code: | 101286 | ||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||||||
| Deposited On: | 14 Feb 2020 17:27 | ||||||||||||||||||||||||
| Last Modified: | 16 Nov 2021 18:01 |
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