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Advanced metallization with low silver consumption for silicon heterojunction solar cells
In this work, three industry-related metallization approaches for silicon heterojunction (SHJ) solar cells are presented which are aiming for a reduction of silver consumption compared to conventional screen-printing of low-temperature silver pastes. The presented results are achieved on large-area...
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description | In this work, three industry-related metallization approaches for silicon heterojunction (SHJ) solar cells are presented which are aiming for a reduction of silver consumption compared to conventional screen-printing of low-temperature silver pastes. The presented results are achieved on large-area cells (area of 244.3 cm2). Firstly, the cell results reveal that with silver-coated copper pastes for screen-printing comparable results as with pure silver pastes can be achieved but with a potentially reduced silver consumption of 30%. Median efficiencies of 21.6% are achieved in both cases utilizing a five busbar cell design. A second approach to reduce the silver consumption is the use of inkjet-printing. The influence of the inkjet-printed layer number per contact finger on the cell performance of busbarless cells is investigated. A maximum conversion efficiency of 23.3% of an inkjet-printed solar cell is achieved within this study. Thirdly, a novel printing technology established at Fraunhofer ISE, called FlexTrail-printing, is introduced. By utilizing the same Ag nanoparticle ink like in the case of inkjet-printing, the finger width is reduced from 75 ± 1 µm down to 16 ± 1 µm on alkaline textured SHJ solar cells. To the authors’ knowledge, this is the smallest feature size ever published on ITO-coated, textured silicon surfaces. A maximum conversion efficiency of 23.7% is measured (busbarless cell). Only 0.3 ± 0.1 mg Ag nanoparticle ink is consumed during FlexTrail-printing on a large-area wafer with a front grid of 80 fingers. |
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To the authors’ knowledge, this is the smallest feature size ever published on ITO-coated, textured silicon surfaces. A maximum conversion efficiency of 23.7% is measured (busbarless cell). Only 0.3 ± 0.1 mg Ag nanoparticle ink is consumed during FlexTrail-printing on a large-area wafer with a front grid of 80 fingers.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.5125872</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Busbars ; Consumption ; Conversion coating ; Heterojunctions ; Inkjet printing ; Metallizing ; Nanoparticles ; Pastes ; Photovoltaic cells ; Screen printing ; Silicon ; Silver ; Solar cells</subject><ispartof>AIP conference proceedings, 2019, Vol.2156 (1)</ispartof><rights>Author(s)</rights><rights>2019 Author(s). 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The presented results are achieved on large-area cells (area of 244.3 cm2). Firstly, the cell results reveal that with silver-coated copper pastes for screen-printing comparable results as with pure silver pastes can be achieved but with a potentially reduced silver consumption of 30%. Median efficiencies of 21.6% are achieved in both cases utilizing a five busbar cell design. A second approach to reduce the silver consumption is the use of inkjet-printing. The influence of the inkjet-printed layer number per contact finger on the cell performance of busbarless cells is investigated. A maximum conversion efficiency of 23.3% of an inkjet-printed solar cell is achieved within this study. Thirdly, a novel printing technology established at Fraunhofer ISE, called FlexTrail-printing, is introduced. By utilizing the same Ag nanoparticle ink like in the case of inkjet-printing, the finger width is reduced from 75 ± 1 µm down to 16 ± 1 µm on alkaline textured SHJ solar cells. To the authors’ knowledge, this is the smallest feature size ever published on ITO-coated, textured silicon surfaces. A maximum conversion efficiency of 23.7% is measured (busbarless cell). Only 0.3 ± 0.1 mg Ag nanoparticle ink is consumed during FlexTrail-printing on a large-area wafer with a front grid of 80 fingers.</description><subject>Busbars</subject><subject>Consumption</subject><subject>Conversion coating</subject><subject>Heterojunctions</subject><subject>Inkjet printing</subject><subject>Metallizing</subject><subject>Nanoparticles</subject><subject>Pastes</subject><subject>Photovoltaic cells</subject><subject>Screen printing</subject><subject>Silicon</subject><subject>Silver</subject><subject>Solar cells</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2019</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNotkEtLAzEUhYMoWKsL_8GAO2FqHpPXshRfUHCjoKtwm0lpSjqpSaZFf71j29WFcz7uPfcgdEvwhGDBHsiEE8qVpGdoRDgntRREnKMRxrqpacM-L9FVzmuMqZZSjdDXtN1BZ11bbVyBEPwvFB-7au_LqgpxX2Ufdi5VNna532wP3jKmf9kPWrVyxaW47jt7sHIMMMAuhHyNLpYQsrs5zTH6eHp8n73U87fn19l0XtshZ6m5VtI6kNQpS2Qr8EIpDqAAD8lbDc1SCQxECssWkljVcNASS70AoRx2nI3R3XHvNsXv3uVi1rFP3XDSUKopEwyzZqDuj1S2vhxeNNvkN5B-DMHmvzpDzKk69gdZPmGG</recordid><startdate>20190918</startdate><enddate>20190918</enddate><creator>Schube, Jörg</creator><creator>Fellmeth, Tobias</creator><creator>Jahn, Mike</creator><creator>Keding, Roman</creator><creator>Glunz, Stefan W.</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20190918</creationdate><title>Advanced metallization with low silver consumption for silicon heterojunction solar cells</title><author>Schube, Jörg ; Fellmeth, Tobias ; Jahn, Mike ; Keding, Roman ; Glunz, Stefan W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c258t-5987cea72e8c17d60b885aa8a0761d9a4f860a176c3b71c845a97079ba68e0e53</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Busbars</topic><topic>Consumption</topic><topic>Conversion coating</topic><topic>Heterojunctions</topic><topic>Inkjet printing</topic><topic>Metallizing</topic><topic>Nanoparticles</topic><topic>Pastes</topic><topic>Photovoltaic cells</topic><topic>Screen printing</topic><topic>Silicon</topic><topic>Silver</topic><topic>Solar cells</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schube, Jörg</creatorcontrib><creatorcontrib>Fellmeth, Tobias</creatorcontrib><creatorcontrib>Jahn, Mike</creatorcontrib><creatorcontrib>Keding, Roman</creatorcontrib><creatorcontrib>Glunz, Stefan W.</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schube, Jörg</au><au>Fellmeth, Tobias</au><au>Jahn, Mike</au><au>Keding, Roman</au><au>Glunz, Stefan W.</au><au>Schubert, Gunnar</au><au>Beaucarne, Guy</au><au>Hoornstra (Retired), Jaap</au><au>Tous, Loic</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Advanced metallization with low silver consumption for silicon heterojunction solar cells</atitle><btitle>AIP conference proceedings</btitle><date>2019-09-18</date><risdate>2019</risdate><volume>2156</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>In this work, three industry-related metallization approaches for silicon heterojunction (SHJ) solar cells are presented which are aiming for a reduction of silver consumption compared to conventional screen-printing of low-temperature silver pastes. 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To the authors’ knowledge, this is the smallest feature size ever published on ITO-coated, textured silicon surfaces. A maximum conversion efficiency of 23.7% is measured (busbarless cell). Only 0.3 ± 0.1 mg Ag nanoparticle ink is consumed during FlexTrail-printing on a large-area wafer with a front grid of 80 fingers.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5125872</doi><tpages>8</tpages></addata></record> |
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source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list) |
subjects | Busbars Consumption Conversion coating Heterojunctions Inkjet printing Metallizing Nanoparticles Pastes Photovoltaic cells Screen printing Silicon Silver Solar cells |
title | Advanced metallization with low silver consumption for silicon heterojunction solar cells |
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