Ferry, Vivian E. and Verschuuren, Marc A. and Li, Hongbo B. T. and Verhagen, Ewold and Walters, Robert J. and Schropp, Ruud E. I. and Atwater, Harry A. and Polman, Albert (2010) Plasmonic light trapping for thin film A-SI:H solar cells. In: 35th IEEE Photovoltaic Specialists Conference. IEEE , Piscataway, NJ, pp. 760-765. ISBN 978-1-4244-5890-5. https://resolver.caltech.edu/CaltechAUTHORS:20190308-144831828
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Abstract
Here we discuss the design, fabrication, and simulation of ultrathin film n-i-p a-Si:H solar cells incorporating light trapping plasmonic back reflectors which exceed the performance of n-i-p cells on randomly textured Asahi substrates. The periodic patterns are made via an inexpensive and scalable nanoimprint method, and are structured directly into the metallic back contact. Compared to reference cells with randomly textured back contacts and flat back contacts, the patterned cells exhibit higher short-circuit current densities and improved overall efficiencies than either reference case. Angle-resolved photocurrent measurements confirm that the enhanced photocurrents are due to coupling to waveguide modes of the cell. Electromagnetic modeling is shown to agree well with measurements, and used to understand further details of the device.
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| Additional Information: | © 2010 IEEE. We are grateful to C. H. M. van der Werf for solar cell deposition, and to L. A. Sweatlock, I. M. Pryce, and R. de Waele for illuminating discussions. The Caltech portion of this work was supported by the Department of Energy under contract number DE-FG02-07ER46405 (modeling) and DE-FG36-08GO18006 (fabrication). Work at AMOLF is part of the research program of FOM which is financially supported by NOW. The work at Utrecht University was fully supported internally. This work is part of the Smart-Mix program Memphis and the Global Climate and Energy Project (GCEP). | ||||||||||||
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| DOI: | 10.1109/PVSC.2010.5617101 | ||||||||||||
| Record Number: | CaltechAUTHORS:20190308-144831828 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190308-144831828 | ||||||||||||
| Official Citation: | V. E. Ferry et al., "Plasmonic light trapping for thin film A-SI:H solar cells," 2010 35th IEEE Photovoltaic Specialists Conference, Honolulu, HI, 2010, pp. 000760-000765. doi: 10.1109/PVSC.2010.5617101 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 93670 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||
| Deposited On: | 08 Mar 2019 22:55 | ||||||||||||
| Last Modified: | 16 Nov 2021 16:59 |
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