Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2017
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| Online Access: | http://hdl.handle.net/1721.1/106702 |
| _version_ | 1826212491803230208 |
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| author | Yen, Patricia, S.M. Massachusetts Institute of Technology |
| author2 | Tonio Buonassisi. |
| author_facet | Tonio Buonassisi. Yen, Patricia, S.M. Massachusetts Institute of Technology |
| author_sort | Yen, Patricia, S.M. Massachusetts Institute of Technology |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016. |
| first_indexed | 2024-09-23T15:23:07Z |
| format | Thesis |
| id | mit-1721.1/106702 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:23:07Z |
| publishDate | 2017 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1067022019-04-12T17:09:34Z Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells Yen, Patricia, S.M. Massachusetts Institute of Technology Tonio Buonassisi. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Cataloged from student-submitted PDF version of thesis. Includes bibliographical references (pages 53-62). Photovoltaic (PV) energy is an abundant and clean alternative to conventional energy sources, which pose an irreversible threat to the environment. For PV to reach cost parity with conventional energy, advances like laser-fired contacts must be adopted to improve cost levers like solar cell efficiency and industrial throughput. This work examines the relationship between laser-processing on the structure and property of solar cells, with the goal of (1) characterizing the differences between using two lasers simultaneously (double-shot lasing) versus a single laser for LFC processing, and (2) using the new findings to optimize industrial LFC efforts. Electrical properties such as lifetime degradation and contact resistance are evaluated using photoluminescence imaging and transmission line measurements, respectively. LFC structures are studied using scanning electron microscope and elemental mapping tools like micro-X-ray fluorescence microscopy and energy dispersive spectroscopy. For the conditions studied, it is unclear whether double-shot lasing can produce higher-quality LFCs than single-shot lasing, although results suggest that the infrared laser influences electrical properties more than the green laser. For future LFC optimization, the [mu]-XRF maps of elemental distribution may offer a novel way to evaluate LFC formation. by Patricia Yen. S.M. 2017-01-30T18:51:20Z 2017-01-30T18:51:20Z 2016 2016 Thesis http://hdl.handle.net/1721.1/106702 969905281 eng MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582 62 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Yen, Patricia, S.M. Massachusetts Institute of Technology Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells |
| title | Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells |
| title_full | Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells |
| title_fullStr | Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells |
| title_full_unstemmed | Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells |
| title_short | Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells |
| title_sort | correlative elemental and electrical micro analysis of laser fired contacts in silicon solar cells |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/106702 |
| work_keys_str_mv | AT yenpatriciasmmassachusettsinstituteoftechnology correlativeelementalandelectricalmicroanalysisoflaserfiredcontactsinsiliconsolarcells |