Advancements in flexible CIGS module manufacturing
- 10 August 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Roll-to-roll (RTR) manufacturing of consistent photovoltaic (PV) material over 1000-ft long metal foil lots has been realized at Global Solar Energy (GSE). Development of robust sensors and in-situ, real-time process control strategies for all thin-film coating (TFC) steps has enabled Global Solar to achieve manufacturing yields above 90%. In turn, reliable processing conditions enable rapid progress using well-controlled experiments designed for device optimization. Average large-area cell efficiency now exceeds 10%. Efficiency and yield have also been increased at the module level through improved fabrication methods. Flexible modules attain a power-to-weight ratio of 40 W/kg and aperture area efficiencies exceeding 11%. Real-time and accelerated stress tests investigating product reliability are underway.Keywords
This publication has 5 references indexed in Scilit:
- Reversible changes of the fill factor in the ZnO/CdS/Cu(In,Ga)Se2 solar cellsSolar Energy Materials and Solar Cells, 2003
- CIGS module development on flexible substratesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- A study of the influence of the Ga content on the long-term stability of Cu(In,Ga)Se2 thin film solar cellsThin Solid Films, 2003
- In situ X-ray fluorescence used for real-time control of CuInxGa1−xSe2 thin film compositionThin Solid Films, 2002
- Stability Issues of Cu(In,Ga)Se2-Based Solar CellsThe Journal of Physical Chemistry B, 2000