Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells
Light trapping has been an important issue for thin film silicon solar cells because of the low absorption coefficient in the near infrared range. In this paper, we present a photonic structure which combines anodic aluminum oxide (AAO) and a distributed Bragg reflector (DBR) in the backside of thin...
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers
2011
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| Online Access: | http://hdl.handle.net/1721.1/61422 https://orcid.org/0000-0002-3913-6189 |
| _version_ | 1826193409727004672 |
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| author | Sheng, Xing Liu, Jifeng Michel, Jurgen Agarwal, Anuradha Murthy Kimerling, Lionel C. |
| author2 | MIT Materials Research Laboratory |
| author_facet | MIT Materials Research Laboratory Sheng, Xing Liu, Jifeng Michel, Jurgen Agarwal, Anuradha Murthy Kimerling, Lionel C. |
| author_sort | Sheng, Xing |
| collection | MIT |
| description | Light trapping has been an important issue for thin film silicon solar cells because of the low absorption coefficient in the near infrared range. In this paper, we present a photonic structure which combines anodic aluminum oxide (AAO) and a distributed Bragg reflector (DBR) in the backside of thin film silicon. Simulation results show that this quasi-periodic AAO structure has a stronger light trapping effect than perfectly periodic diffractive gratings. As a proof of concept, we incorporated the backside structure into thick silicon PV cells. By comparing the measured photoconductance of silicon with different backside structures, the enhancement of light absorption near the band edge of silicon is demonstrated for our proposed light trapping structure. |
| first_indexed | 2024-09-23T09:38:36Z |
| format | Article |
| id | mit-1721.1/61422 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:38:36Z |
| publishDate | 2011 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/614222022-09-26T12:48:35Z Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells Sheng, Xing Liu, Jifeng Michel, Jurgen Agarwal, Anuradha Murthy Kimerling, Lionel C. MIT Materials Research Laboratory Massachusetts Institute of Technology. Department of Materials Science and Engineering Kimerling, Lionel C. Sheng, Xing Liu, Jifeng Michel, Jurgen Agarwal, Anuradha Murthy Kimerling, Lionel C. Light trapping has been an important issue for thin film silicon solar cells because of the low absorption coefficient in the near infrared range. In this paper, we present a photonic structure which combines anodic aluminum oxide (AAO) and a distributed Bragg reflector (DBR) in the backside of thin film silicon. Simulation results show that this quasi-periodic AAO structure has a stronger light trapping effect than perfectly periodic diffractive gratings. As a proof of concept, we incorporated the backside structure into thick silicon PV cells. By comparing the measured photoconductance of silicon with different backside structures, the enhancement of light absorption near the band edge of silicon is demonstrated for our proposed light trapping structure. Massachusetts Institute of Technology. Energy Initiative Robert Bosch GmbH 2011-03-04T20:59:54Z 2011-03-04T20:59:54Z 2010-02 2009-06 Article http://purl.org/eprint/type/JournalArticle 978-1-4244-2949-3 0160-8371 INSPEC Accession Number: 11152507 http://hdl.handle.net/1721.1/61422 Xing Sheng et al. “Low-cost, Deterministic Quasi-periodic Photonic Structures for light trapping in thin film silicon solar cells.” Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE. 2009. 002395-002398. © 2010 IEEE. https://orcid.org/0000-0002-3913-6189 en_US http://dx.doi.org/10.1109/PVSC.2009.5411306 34th IEEE Photovoltaic Specialists Conference (PVSC), 2009 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Sheng, Xing Liu, Jifeng Michel, Jurgen Agarwal, Anuradha Murthy Kimerling, Lionel C. Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells |
| title | Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells |
| title_full | Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells |
| title_fullStr | Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells |
| title_full_unstemmed | Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells |
| title_short | Low-cost, deterministic quasi-periodic photonic structures for light trapping in thin film silicon solar cells |
| title_sort | low cost deterministic quasi periodic photonic structures for light trapping in thin film silicon solar cells |
| url | http://hdl.handle.net/1721.1/61422 https://orcid.org/0000-0002-3913-6189 |
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