Descripción
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Metallization plays a fundamental role in the fabrication of solar cells and it is then a key process for enhancing the efficiency of silicon solar cells in a cost effective way. In this work, Laser Induced Forward Transfer (LIFT) technique has been used to direct write the metallic contacts (fingers and busbars) onto c-Si cells. Commercial silver pastes, used in conventional screen-printing process, are deposited onto a glass substrate, placed over the cell, and transferred be means of focusing a laser pulse in the interface between the paste and the glass substrate. Standard ns-pulsed diode pumped solid state lasers and new generation ps-pulsed industrial lasers have been used as laser sources for LIFT. Fine parameterization of the process is needed. Single dots of paste have been transfer in a wide parametric window. Once the optima experimental conditions are determined, it is possible using both pulse time durations to transfer large material volumes per pulse (~102 pL) and define metallic lines with large aspect ratios. | |
Internacional
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Si |
Nombre congreso
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31st European Photovoltaic Solar Energy Conference and Exhibition EUPVSEC 2015 |
Tipo de participación
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970 |
Lugar del congreso
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Hamburgo, Alemania |
Revisores
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Si |
ISBN o ISSN
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3-936338-39-6 |
DOI
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Fecha inicio congreso
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14/09/2015 |
Fecha fin congreso
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18/09/2015 |
Desde la página
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1 |
Hasta la página
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3 |
Título de las actas
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Proceedings of the international Conference held in Hamburg, Germany Paper 2CV.4.20 |