Raman spectroscopy and hyper-spectral imaging for quality control of CIGS solar cells

Martin De Biasio; Johanna Zikulnig; Wolfgang Muehleisen; Veronique Gevaerts; Marcel Simor; Florian Gruber; Philipp Wollmann; Wulf Grählert; Thomas Arnold

doi:10.1117/12.2655679

15 June 2023 Raman spectroscopy and hyper-spectral imaging for quality control of CIGS solar cells

Martin De Biasio, Johanna Zikulnig, Wolfgang Muehleisen, Veronique Gevaerts, Marcel Simor, Florian Gruber, Philipp Wollmann, Wulf Grählert, Thomas Arnold

Author Affiliations +

Proceedings Volume 12516, Next-Generation Spectroscopic Technologies XV; 125160Y (2023) https://doi.org/10.1117/12.2655679
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Conference Poster

Abstract

Copper indium gallium selenide (CIGS) thin film photovoltaic devices are in the early stages of large-scale commercialization. Their high performance, uniformity, reliability, and a low carbon footprint make them an attractive alternative to standard silicon solar cells. Due to the complex processing required and the associated manufacturing costs, reliable in-line quality control technology is needed. By identifying defective cells early in production, faulty batches can be excluded from further processing, saving resources and costs. We show that micro-Raman spectroscopy (RS) and hyper-spectral imaging (HSI) are powerful tools for quality control and process improvement. Distinctive features in the Raman spectra allow the estimation of the copper to gallium plus indium (CGI) ratio, which is an important criterion for the cell’s efficiency. With HSI in the visible and near infrared range (VNIR) and the near-infrared spectral range (NIR) in combination with machine learning techniques, the layer thickness and CGI ratio are accurately predicted.

Citation Download Citation

Martin De Biasio, Johanna Zikulnig, Wolfgang Muehleisen, Veronique Gevaerts, Marcel Simor, Florian Gruber, Philipp Wollmann, Wulf Grählert, and Thomas Arnold "Raman spectroscopy and hyper-spectral imaging for quality control of CIGS solar cells", Proc. SPIE 12516, Next-Generation Spectroscopic Technologies XV, 125160Y (15 June 2023); https://doi.org/10.1117/12.2655679

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available