Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

NIR-spectroscopical process control for wet chemical processes

: Zimmer, M.; Birmann, K.; Hilgert, J.; Rentsch, J.


Sinke, W. ; WIP - Renewable Energies, München; European Commission; UNESCO; World Council for Renewable Energy; International Photovoltaic Equipment Association:
24th European Photovoltaic Solar Energy Conference 2009. CD-ROM : The compiled State-of-the-Art of PV Solar Technology and Deployment. Proceedings of the International Conference held in Hamburg, 21-25 September 2009
München, 2009
ISBN: 3-936338-25-6
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <24, 2009, Hamburg>
Conference Paper
Fraunhofer ISE ()

Crystalline silicon solar cell fabrication requires many wet chemical processes, such as alkaline and acidic texturisation processes as well as several cleaning procedures. Besides the conventional chemical analysis techniques like titration and chromatography, near-infrared (NIR) spectroscopy gains more and more importance. In this paper, the suitability of NIR spectroscopy for the process control in wet chemical processes is compared to alternative analysis methods like titration, ion chromatography, HPLC and surface tension measurements.