Low-cost back contact silicon solar cells
Back-contacted solar cells offer multiple advantages in regard of reducing module assembling costs and avoiding grid shadowing losses. The investigated emitter-wrap-through (EWT) device design has an electrical connection of the front emitter and the rear emitter grid in form of small holes drilled...
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Veröffentlicht in: | IEEE transactions on electron devices 1999-10, Vol.46 (10), p.2000-2004 |
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container_end_page | 2004 |
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container_issue | 10 |
container_start_page | 2000 |
container_title | IEEE transactions on electron devices |
container_volume | 46 |
creator | Kress, A. Kuhn, R. Fath, P. Willeke, G.P. Bucher, E. |
description | Back-contacted solar cells offer multiple advantages in regard of reducing module assembling costs and avoiding grid shadowing losses. The investigated emitter-wrap-through (EWT) device design has an electrical connection of the front emitter and the rear emitter grid in form of small holes drilled into the crystalline silicon wafer. The obtained cell structure is especially suitable for low-cost base material with small minority carrier diffusion lengths. Different industrially applicable solar cell manufacturing processes for EWT devices are described and compared. The latest experimental results are presented and interpreted; the photocurrent is found to be distinctly increased. The relation between open circuit voltage and rear side passivation is discussed based on two-dimensional (2-D) computer simulations. |
doi_str_mv | 10.1109/16.791988 |
format | Article |
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Konstanz (DE)</creatorcontrib><title>Low-cost back contact silicon solar cells</title><title>IEEE transactions on electron devices</title><addtitle>TED</addtitle><description>Back-contacted solar cells offer multiple advantages in regard of reducing module assembling costs and avoiding grid shadowing losses. The investigated emitter-wrap-through (EWT) device design has an electrical connection of the front emitter and the rear emitter grid in form of small holes drilled into the crystalline silicon wafer. The obtained cell structure is especially suitable for low-cost base material with small minority carrier diffusion lengths. Different industrially applicable solar cell manufacturing processes for EWT devices are described and compared. The latest experimental results are presented and interpreted; the photocurrent is found to be distinctly increased. The relation between open circuit voltage and rear side passivation is discussed based on two-dimensional (2-D) computer simulations.</description><subject>Assembling</subject><subject>BACK CONTACT SOLAR CELLS</subject><subject>COST</subject><subject>DESIGN</subject><subject>Devices</subject><subject>Emitters (electron)</subject><subject>FABRICATION</subject><subject>MATERIALS SCIENCE</subject><subject>Open circuit voltage</subject><subject>Photoelectric effect</subject><subject>Photovoltaic cells</subject><subject>Silicon</subject><subject>SILICON SOLAR CELLS</subject><subject>Solar cells</subject><subject>SOLAR ENERGY</subject><issn>0018-9383</issn><issn>1557-9646</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp90E1LAzEQBuAgCtbqwaunBUHsYetkk8wmRyl-QcGLnkM6zWJ0262bFPHfN2WLR0-ZJA8zL8PYJYcp52DuOE5rw43WR2zElapLgxKP2QiA69IILU7ZWYyf-YpSViM2mXc_JXUxFQtHXwV16-QoFTG0IddF7FrXF-TbNp6zk8a10V8czjF7f3x4mz2X89enl9n9vCShIZW8bgQtAZVB452hBTRGCiUXkkg5gZywEqgAKqy1qr3Ib7pxBpYVX0pvxJhdD31zqGAjheTpI2dZe0q2AgCEGrK6GdSm7763Pia7CnGf0619t4220nkmap3h7b-QY81lhagx08lAqe9i7H1jN31Yuf7XcrD77WZsh-1mezXY4L3_c4fPHXUxcR8</recordid><startdate>19991001</startdate><enddate>19991001</enddate><creator>Kress, A.</creator><creator>Kuhn, R.</creator><creator>Fath, P.</creator><creator>Willeke, G.P.</creator><creator>Bucher, E.</creator><general>IEEE</general><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>19991001</creationdate><title>Low-cost back contact silicon solar cells</title><author>Kress, A. ; Kuhn, R. ; Fath, P. ; Willeke, G.P. ; Bucher, E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-17f3cd065969ea9cb0f94354b4cc5a361c6236500267857e3a368fa90d21d4e93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Assembling</topic><topic>BACK CONTACT SOLAR CELLS</topic><topic>COST</topic><topic>DESIGN</topic><topic>Devices</topic><topic>Emitters (electron)</topic><topic>FABRICATION</topic><topic>MATERIALS SCIENCE</topic><topic>Open circuit voltage</topic><topic>Photoelectric effect</topic><topic>Photovoltaic cells</topic><topic>Silicon</topic><topic>SILICON SOLAR CELLS</topic><topic>Solar cells</topic><topic>SOLAR ENERGY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kress, A.</creatorcontrib><creatorcontrib>Kuhn, R.</creatorcontrib><creatorcontrib>Fath, P.</creatorcontrib><creatorcontrib>Willeke, G.P.</creatorcontrib><creatorcontrib>Bucher, E.</creatorcontrib><creatorcontrib>Univ. 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Konstanz (DE)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-cost back contact silicon solar cells</atitle><jtitle>IEEE transactions on electron devices</jtitle><stitle>TED</stitle><date>1999-10-01</date><risdate>1999</risdate><volume>46</volume><issue>10</issue><spage>2000</spage><epage>2004</epage><pages>2000-2004</pages><issn>0018-9383</issn><eissn>1557-9646</eissn><coden>IETDAI</coden><abstract>Back-contacted solar cells offer multiple advantages in regard of reducing module assembling costs and avoiding grid shadowing losses. The investigated emitter-wrap-through (EWT) device design has an electrical connection of the front emitter and the rear emitter grid in form of small holes drilled into the crystalline silicon wafer. The obtained cell structure is especially suitable for low-cost base material with small minority carrier diffusion lengths. Different industrially applicable solar cell manufacturing processes for EWT devices are described and compared. The latest experimental results are presented and interpreted; the photocurrent is found to be distinctly increased. The relation between open circuit voltage and rear side passivation is discussed based on two-dimensional (2-D) computer simulations.</abstract><cop>United States</cop><pub>IEEE</pub><doi>10.1109/16.791988</doi><tpages>5</tpages></addata></record> |
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subjects | Assembling BACK CONTACT SOLAR CELLS COST DESIGN Devices Emitters (electron) FABRICATION MATERIALS SCIENCE Open circuit voltage Photoelectric effect Photovoltaic cells Silicon SILICON SOLAR CELLS Solar cells SOLAR ENERGY |
title | Low-cost back contact silicon solar cells |
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