Title:
18% Large Area Screen-Printed Solar Cells on Textured MCZ Silicon with High Sheet Resistance Emitter
18% Large Area Screen-Printed Solar Cells on Textured MCZ Silicon with High Sheet Resistance Emitter
| dc.contributor.author | Ebong, Abasifreke | |
| dc.contributor.author | Upadhyaya, V. | |
| dc.contributor.author | Rounsaville, Brian | |
| dc.contributor.author | Kim, Dong Seop | |
| dc.contributor.author | Tate, K. | |
| dc.contributor.author | Rohatgi, Ajeet | |
| dc.contributor.corporatename | Georgia Institute of Technology. University Center of Excellence for Photovoltaic Research and Education | |
| dc.contributor.corporatename | Georgia Institute of Technology. School of Electrical and Computer Engineering | |
| dc.date.accessioned | 2008-12-08T21:40:50Z | |
| dc.date.available | 2008-12-08T21:40:50Z | |
| dc.date.issued | 2006-05 | |
| dc.description | Presented at the 4th World Conference on Photovoltaic Energy Conversion; Hawaii, USA; May 7-12, 2006. | en |
| dc.description.abstract | In this paper we report on high efficiency screen-printed 49 cm(2) solar cells fabricated on randomly textured float zone (1.2 Ω-cm) and magnetic Czochralski (MCz) silicon with resistivities of 1.2 and 4.8 Ω-cm, respectively. A simple process involving POCl3 diffused emitters, low frequency PECVD silicon nitride deposition, Al back contact print, Ag front grid print followed by co-firing of the contacts and forming gas anneal produced efficiencies of 17.6% on 1.2 Ω-cm textured float zone Si, 17.9% on 1.2 Ω-cm MCz Si and 18.0% on 4.8 Ω-cm MCz Si. A combination of high sheet resistance emitter (~95 Ω-/ ) and the surface texturing resulted in a short circuit current density of 37.8 mA/cm(2) in the 4.8 Ω-cm MCz cell, 37.0 mA/cm(2) in the 1.2 Ω-cm(2) MCz cell and 36.5 mA/cm(2) in the 1.2 Ω-cm(2) float zone cell. The open circuit voltages were consistent with the base resistivities of the two materials. The fill factors were in the range of 0.760-0.770 indicating there is considerable room for improvement. Detailed modeling and analysis is performed to explain the cell performance and provide guidelines for achieving 20% efficient screen-printed cells on MCZ Si. | en |
| dc.identifier.uri | http://hdl.handle.net/1853/25919 | |
| dc.language.iso | en_US | en |
| dc.publisher | Georgia Institute of Technology | en |
| dc.subject | Screen-printed solar cells | en |
| dc.subject | High-efficiency cells | en |
| dc.title | 18% Large Area Screen-Printed Solar Cells on Textured MCZ Silicon with High Sheet Resistance Emitter | en |
| dc.type | Text | |
| dc.type.genre | Proceedings | |
| dspace.entity.type | Publication | |
| local.contributor.author | Rohatgi, Ajeet | |
| local.contributor.corporatename | School of Electrical and Computer Engineering | |
| local.contributor.corporatename | College of Engineering | |
| local.contributor.corporatename | University Center of Excellence for Photovoltaics | |
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