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  4. Electrochemical contact separation for PVD aluminum back contact solar cells
 
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2015
Journal Article
Title

Electrochemical contact separation for PVD aluminum back contact solar cells

Abstract
This work deals with a possibility to simplify the processing of back-contact back-junction solar cells. A novel metallization process without using any additional mask is presented. The main focus is set on the contact separation resulting in the interdigitated metal pattern. In case of using evaporated aluminum as contacting material to silicon, aluminum anodizing is a convenient process to convert electrically conductive aluminum to electrically isolating aluminum oxide. In the established processes in which anodizing of aluminum is used for aluminum structuring, masks are used to achieve local anodized areas. In order to make the contact separation process by anodizing more economic, several in-situ anodizing processes either using structured processing units or printing techniques are developed and tested.
Author(s)
Kamp, Mathias
Maywald, A.
Bartsch, Jonas  
Efinger, Raphael  
Keding, Roman  
Glatthaar, Markus  
Glunz, Stefan W.  
Krossing, Ingo
Journal
Energy Procedia  
Conference
Workshop on Metallization for Crystalline Silicon Solar Cells 2014  
Open Access
DOI
10.1016/j.egypro.2015.03.289
Link
Link
Language
English
Fraunhofer-Institut für Solare Energiesysteme ISE  
Keyword(s)
  • Solarzellen - Entwicklung und Charakterisierung

  • Silicium-Photovoltaik

  • Kontaktierung und Strukturierung

  • Modulintegration

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