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Fabrication of back-contacted silicon solar cells using thermomigration to create conductive vias

Patent ·
OSTI ID:1176093
Methods of manufacturing back-contacted silicon solar cells fabricated using a gradient-driven solute transport process, such as thermomigration or electromigration, to create n-type conductive vias connecting the n-type emitter layer on the front side to n-type ohmic contacts located on the back side.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Advent Solar, Inc. (Albuquerque, NM); Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,170,001
Application Number:
10/606,487
OSTI ID:
1176093
Country of Publication:
United States
Language:
English

References (2)

Random walk of liquid droplets migrating in silicon journal June 1976
Al thermomigration applied to the formation of deep junctions for power device insulation journal January 1999

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