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Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements
This article presents a novel technique to estimate the mechanical properties of the aluminum composite layer on silicon solar cells by using a hybrid 3-dimensional laser scanning force measurement (3-D LSFM) system. The 3-D LSFM system measures the material properties of sub-layers constituting a s...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4780100/ https://www.ncbi.nlm.nih.gov/pubmed/26948248 http://dx.doi.org/10.1038/srep22752 |
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author | Bae, Sung-Kuk Choi, Beomjoon Chung, Haseung Shin, Seungwon Song, Hee-eun Seo, Jung Hwan |
author_facet | Bae, Sung-Kuk Choi, Beomjoon Chung, Haseung Shin, Seungwon Song, Hee-eun Seo, Jung Hwan |
author_sort | Bae, Sung-Kuk |
collection | PubMed |
description | This article presents a novel technique to estimate the mechanical properties of the aluminum composite layer on silicon solar cells by using a hybrid 3-dimensional laser scanning force measurement (3-D LSFM) system. The 3-D LSFM system measures the material properties of sub-layers constituting a solar cell. This measurement is critical for realizing high-efficient ultra-thin solar cells. The screen-printed aluminum layer, which significantly affects the bowing phenomenon, is separated from the complete solar cell by removing the silicon (Si) layer with deep reactive ion etching. An elastic modulus of ~15.1 GPa and a yield strength of ~35.0 MPa for the aluminum (Al) composite layer were obtained by the 3-D LSFM system. In experiments performed for 6-inch Si solar cells, the bowing distances decreased from 12.02 to 1.18 mm while the Si layer thicknesses increased from 90 to 190 μm. These results are in excellent agreement with the theoretical predictions for ultra-thin Si thickness (90 μm) based on the obtained Al composite layer properties. |
format | Online Article Text |
id | pubmed-4780100 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47801002016-03-09 Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements Bae, Sung-Kuk Choi, Beomjoon Chung, Haseung Shin, Seungwon Song, Hee-eun Seo, Jung Hwan Sci Rep Article This article presents a novel technique to estimate the mechanical properties of the aluminum composite layer on silicon solar cells by using a hybrid 3-dimensional laser scanning force measurement (3-D LSFM) system. The 3-D LSFM system measures the material properties of sub-layers constituting a solar cell. This measurement is critical for realizing high-efficient ultra-thin solar cells. The screen-printed aluminum layer, which significantly affects the bowing phenomenon, is separated from the complete solar cell by removing the silicon (Si) layer with deep reactive ion etching. An elastic modulus of ~15.1 GPa and a yield strength of ~35.0 MPa for the aluminum (Al) composite layer were obtained by the 3-D LSFM system. In experiments performed for 6-inch Si solar cells, the bowing distances decreased from 12.02 to 1.18 mm while the Si layer thicknesses increased from 90 to 190 μm. These results are in excellent agreement with the theoretical predictions for ultra-thin Si thickness (90 μm) based on the obtained Al composite layer properties. Nature Publishing Group 2016-03-07 /pmc/articles/PMC4780100/ /pubmed/26948248 http://dx.doi.org/10.1038/srep22752 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Bae, Sung-Kuk Choi, Beomjoon Chung, Haseung Shin, Seungwon Song, Hee-eun Seo, Jung Hwan Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements |
title | Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements |
title_full | Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements |
title_fullStr | Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements |
title_full_unstemmed | Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements |
title_short | Characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3D scanning force measurements |
title_sort | characterizing microscale aluminum composite layer properties on silicon solar cells with hybrid 3d scanning force measurements |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4780100/ https://www.ncbi.nlm.nih.gov/pubmed/26948248 http://dx.doi.org/10.1038/srep22752 |
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