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Title:
Enablers for IBC: integral cell and module development and implementation in PV industry
 
Author(s):
 
Published by: Publication date:
ECN Solar Energy 1-10-2017
 
ECN report number: Document type:
ECN-W--17-029 Article (scientific)
 
Number of pages:
8  

Published in: Energy Procedia (Elsevier), , 2017, Vol.Volume 124, September, p.834-841.

Abstract:
An integral solar cell and module concept is developed based on an IBC cell design with a front floating emitter (FFE). The FFE renders the cell resilient to electrical shading and reduces the demands on feature size. The cells are bi-facial by design. We interconnected 6” IBC cells using a conductive back sheet foil, resulting in a visually appealing mono-facial solar module. The IBC cells are made using a process close to existing industrial n-PERT processing, their production in an industrial pilot line has been demonstrated. The cells can be produced at the cost level of a PERC cell. The paper shows how the current cell efficiency of 21.1% cell will be increased beyond 22% in 2017 and what enablers are required to industrialize this concept. One such enabler we report on is high resolution Rsheet mapping using near-field THz scanning.

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