METHODS AND APPARATUS FOR DETECTION AND CLASSIFICATION OF SOLAR CELL DEFECTS USING BRIGHT FIELD AND ELECTROLUMINESCENCE IMAGING

METHODS AND APPARATUS FOR DETECTION AND CLASSIFICATION OF SOLAR CELL DEFECTS USING BRIGHT FIELD AND ELECTROLUMINESCENCE IMAGING

Methods and apparatus for integrated, in-line metrology of solar cells involve three distinct inspection and testing operations, prior to string and module assembly. Two of the inspections are performed by image analysis using bright field illumination. The third inspection involves electroluminesce...

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Bibliographische Detailangaben
Hauptverfasser: SCHOCK GERALD, MILLER S. DANIEL, CHIDAMBARAM MAHENDRAN T
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:Methods and apparatus for integrated, in-line metrology of solar cells involve three distinct inspection and testing operations, prior to string and module assembly. Two of the inspections are performed by image analysis using bright field illumination. The third inspection involves electroluminescence imaging, where luminescence in the solar cell is achieved by inducing a forward bias in the solar cell, and analyzing a resulting grayscale image for defects.