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  4. Lessons Learned From 25 Years Production Technology Research & Development
 
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2022
Conference Paper
Title

Lessons Learned From 25 Years Production Technology Research & Development

Abstract
In 1997, a visionary study addressed limitations of the cost reduction potential for high efficiency solar cell devices. The results of this study triggered increased efforts for the development of production technology at Fraunhofer ISE. Many new approaches with substantial impact have been developed to the demonstration level. Economic analysis and a technology readiness terminology have been established to aid in assessing technological approaches, while the set-up of the PV technology evaluation center (PV-TEC) allowed for testing equipment, processes and materials on a higher maturity level. Reference processes building the backbone of the technology have been developed consistently further and device efficiencies follow a roughly 0.5%/a progress gradient since 2005, which is in good agreement with reports for an industrial pilot line. Today, we can rely on reference processes for PERC, TOPCon and SHJ in the PV-TEC with total and large area efficiencies of up to 22.7%, 24.0% and 24.1%, respectively. Further learning includes that for production technology R&D for PV devices high average power conversion efficiencies must be targeted and that scaling should be combined with thorough testing of products along the value chain. All cost and value determining parameters like production efficiency distribution, yield, capital and operational expenditure as well as degradation and performance under field conditions have to be monitored.
Author(s)
Preu, Ralf  
Fraunhofer-Institut für Solare Energiesysteme ISE
Rentsch, Jochen  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Rein, Stefan  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Clement, Florian  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Nekarda, Jan  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Saint-Cast, Pierre  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Lohmüller, Elmar  orcid-logo
Fraunhofer-Institut für Solare Energiesysteme ISE  
Lohmüller, Sabrina  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Greulich, Johannes  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Wöhrle, Nico  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Pingel, Sebastian  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Steinmetz, Anamaria  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Baliozian, Puzant  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Nold, Sebastian  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Goraya, Baljeet Singh
Fraunhofer-Institut für Solare Energiesysteme ISE  
Glunz, Stefan  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Bett, Andreas W.  
Fraunhofer-Institut für Solare Energiesysteme ISE  
Mainwork
8th World Conference on Photovoltaic Energy Conversion, WCPEC 2022  
Conference
World Conference on Photovoltaic Energy Conversion 2022  
File(s)
Download (512.03 KB)
Rights
Use according to copyright law
DOI
10.4229/WCPEC-82022-1CP.2.1
10.24406/publica-1056
Language
English
Fraunhofer-Institut für Solare Energiesysteme ISE  
Keyword(s)
  • production

  • pv technologies

  • silicon

  • silicon solar cell

  • Heterojunction

  • Screen Printing

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