Progress in and potential of liquid phase crystallized silicon solar cells

•Recent progress on liquid phase crystallized silicon is reviewed.•Influence of doping density and BSF finger width on IBC cell is studied.•A roadmap for further development of LPC silicon solar cells is presented. Liquid phase crystallization of silicon (LPC-Si) offers great potential for high-qual...

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Bibliographic Details
Published in:Solar energy 2018-11, Vol.175, p.75-83
Main Authors: Trinh, Cham Thi, Schlatmann, Rutger, Rech, B., Amkreutz, Daniel
Format: Article
Language:English
Subjects:
Crystallization
Current loss
Fabrication
Heterojunction
IBC
Liquid phase crystallization
Liquid phases
Photovoltaic cells
Quality assessment
Quality control
Silicon
Silicon films
Silicon solar cell
Solar cells
Solar energy
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Summary:•Recent progress on liquid phase crystallized silicon is reviewed.•Influence of doping density and BSF finger width on IBC cell is studied.•A roadmap for further development of LPC silicon solar cells is presented. Liquid phase crystallization of silicon (LPC-Si) offers great potential for high-quality Si films and a cost effective fabrication technique for thin crystalline silicon solar cells on glass. In this work, we report on the progress on LPC-silicon at HZB in the past years. Beginning with a brief description of the fabrication process, we summarize the work on the different contact systems developed for these absorbers before focusing on the interdigitated back contact architecture on which the highest efficiencies were reported. State-of-the art cells form the basis for a detailed discussion of the status of this technology. We investigate the current loss mechanisms and explore the potential for further improvement. Finally, based on this comprehensive quality assessment, we develop a roadmap to increase the cell efficiencies to wafer-equivalent values.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2017.12.041