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Title:
 
The EU Project R2M-Si on Roll to Module Processed Crystalline Silicon Thin-Films
 
Author(s):
 
S. Lindekugel, B. Terheiden, R. Pavlovic, K. Van Nieuwenhuysen, T. Pettersen, E. Astrova, A. Straboni, H.H. Kühnlein, S. Reber
 
Keywords:
 
Porous Silicon, Solar Cell, c-Si Thin Films, Lift-Off
 
Topic:
 
THIN FILM SOLAR CELLS
Subtopic: Silicon-based Thin Film Solar Cells
Event: 29th European Photovoltaic Solar Energy Conference and Exhibition
Session: 3CV.1.31
 
Pages:
 
1673 - 1677
ISBN: 3-936338-34-5
Paper DOI: 10.4229/EUPVSEC20142014-3CV.1.31
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


This paper presents a summary of the EU project “roll to module processed crystalline silicon thinfilms” (R2M-Si). The aim of this project was to lift off c-Si-thin-films in a cost effective manner, and to process them to integrated interconnected solar cells. One major goal was therefore to provide Si foil material for solar cells with a high efficiency potential. Within the R2M-Si project both the theoretical understanding and the actual process development of porosifying and detaching layers from flat wafers as well as from the circumference of a silicon rod have been investigated. Studies on crystal orientation dependence of the porosification along with tool development towards a continuous formation of a separation layer were accompanied by in depth understanding and thus optimization of the reorganization and subsequent epitaxial growth process. Finally the introduction of a special attachment process and an integrated solar cell concept could be achieved.