Low-cost selective deposition of wax onto textured solar cells
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2011
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| Online Access: | http://hdl.handle.net/1721.1/62994 |
| _version_ | 1826189580393512960 |
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| author | Páez, Daýan |
| author2 | Emanuel Sachs. |
| author_facet | Emanuel Sachs. Páez, Daýan |
| author_sort | Páez, Daýan |
| collection | MIT |
| description | Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008. |
| first_indexed | 2024-09-23T08:18:13Z |
| format | Thesis |
| id | mit-1721.1/62994 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T08:18:13Z |
| publishDate | 2011 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/629942019-04-09T17:47:26Z Low-cost selective deposition of wax onto textured solar cells Páez, Daýan Emanuel Sachs. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008. Cataloged from PDF version of thesis. The active regions of a solar cell must be inoculated with wax, while leaving the metal fingers and bus bars bare, in preparation for the electroplating step of a new solar panel manufacturing process. Different methods to achieve the inoculation of the cell are discussed, along with their advantages and disadvantages. A proposed solution is presented, along with results from test runs. The methods use a new feature of solar cells-microscopic, light-trapping textures-to passively wick the liquid wax to the extents of the regions through capillarity. Using this self-aligning feature of the cell texture, a low-cost delivery device was designed to bring liquid wax beads to within close proximities of the surface, without requiring high-precision equipment. The prototype uses an array of pins of diameter 1 mm, each of which beads a repeatable amount of wax on its head (- 0.1 mg), to transport the liquid wax from reservoir to cell texture. No metal-to-wafer contact is done in the process. The design has been used as a basis to create a machine at the Photovoltaics Laboratory (PV Lab). Successful inoculation of monocrystalline solar cells has been achieved using the proposed method. by Daýan Páez. S.B. 2011-05-23T17:58:49Z 2011-05-23T17:58:49Z 2008 2008 Thesis http://hdl.handle.net/1721.1/62994 720657674 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 29 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Páez, Daýan Low-cost selective deposition of wax onto textured solar cells |
| title | Low-cost selective deposition of wax onto textured solar cells |
| title_full | Low-cost selective deposition of wax onto textured solar cells |
| title_fullStr | Low-cost selective deposition of wax onto textured solar cells |
| title_full_unstemmed | Low-cost selective deposition of wax onto textured solar cells |
| title_short | Low-cost selective deposition of wax onto textured solar cells |
| title_sort | low cost selective deposition of wax onto textured solar cells |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/62994 |
| work_keys_str_mv | AT paezdayan lowcostselectivedepositionofwaxontotexturedsolarcells |