Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching
Nanostructured solar cells with coaxial p-n junction structures have strong potential to enhance the performances of the silicon-based solar cells. This study demonstrates a radial junction silicon nanowire (RJSNW) solar cell that was fabricated simply and at low cost using wet chemical etching. Exp...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/701809 |
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| author | Chien-Wei Liu Chin-Lung Cheng Bau-Tong Dai Chi-Han Yang Jun-Yuan Wang |
| author_facet | Chien-Wei Liu Chin-Lung Cheng Bau-Tong Dai Chi-Han Yang Jun-Yuan Wang |
| author_sort | Chien-Wei Liu |
| collection | DOAJ |
| description | Nanostructured solar cells with coaxial p-n junction structures have strong potential to enhance the performances of the silicon-based solar cells. This study demonstrates a radial junction silicon nanowire (RJSNW) solar cell that was fabricated simply and at low cost using wet chemical etching. Experimental results reveal that the reflectance of the silicon nanowires (SNWs) declines as their length increases. The excellent light trapping was mainly associated with high aspect ratio of the SNW arrays. A conversion efficiency of ∼7.1% and an external quantum efficiency of ∼64.6% at 700 nm were demonstrated. Control of etching time and diffusion conditions holds great promise for the development of future RJSNW solar cells. Improving the electrode/RJSNW contact will promote the collection of carries in coaxial core-shell SNW array solar cells. |
| format | Article |
| id | doaj-art-0f459e2188a94e0e822504a4478290d4 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-0f459e2188a94e0e822504a4478290d42025-02-03T05:53:36ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/701809701809Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical EtchingChien-Wei Liu0Chin-Lung Cheng1Bau-Tong Dai2Chi-Han Yang3Jun-Yuan Wang4Department of Mechanical Engineering, National Yunlin University of Science and Technology, Yunlin 64054, TaiwanDepartment of Electro-Optical Engineering, National Formosa University, Yunlin 63201, TaiwanNational Nano Device Laboratories, National Applied Research Laboratories, Hsinchu 30078, TaiwanInstitute of Materials Science and Green Energy Engineering, National Formosa University, Yunlin 63201, TaiwanInstitute of Materials Science and Green Energy Engineering, National Formosa University, Yunlin 63201, TaiwanNanostructured solar cells with coaxial p-n junction structures have strong potential to enhance the performances of the silicon-based solar cells. This study demonstrates a radial junction silicon nanowire (RJSNW) solar cell that was fabricated simply and at low cost using wet chemical etching. Experimental results reveal that the reflectance of the silicon nanowires (SNWs) declines as their length increases. The excellent light trapping was mainly associated with high aspect ratio of the SNW arrays. A conversion efficiency of ∼7.1% and an external quantum efficiency of ∼64.6% at 700 nm were demonstrated. Control of etching time and diffusion conditions holds great promise for the development of future RJSNW solar cells. Improving the electrode/RJSNW contact will promote the collection of carries in coaxial core-shell SNW array solar cells.http://dx.doi.org/10.1155/2012/701809 |
| spellingShingle | Chien-Wei Liu Chin-Lung Cheng Bau-Tong Dai Chi-Han Yang Jun-Yuan Wang Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching International Journal of Photoenergy |
| title | Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching |
| title_full | Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching |
| title_fullStr | Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching |
| title_full_unstemmed | Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching |
| title_short | Fabrication and Photovoltaic Characteristics of Coaxial Silicon Nanowire Solar Cells Prepared by Wet Chemical Etching |
| title_sort | fabrication and photovoltaic characteristics of coaxial silicon nanowire solar cells prepared by wet chemical etching |
| url | http://dx.doi.org/10.1155/2012/701809 |
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