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Image Processing for Solar Cell Analysis, Diagnostics and Quality Assurance Inspection

Image Processing for Solar Cell Analysis, Diagnostics and Quality Assurance Inspection

Michael G. Mauk
Copyright: © 2013 |Pages: 37
ISBN13: 9781466639942|ISBN10: 1466639946|EISBN13: 9781466639959
DOI: 10.4018/978-1-4666-3994-2.ch071
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MLA

Mauk, Michael G. "Image Processing for Solar Cell Analysis, Diagnostics and Quality Assurance Inspection." Image Processing: Concepts, Methodologies, Tools, and Applications, edited by Information Resources Management Association, IGI Global, 2013, pp. 1426-1462. https://doi.org/10.4018/978-1-4666-3994-2.ch071

APA

Mauk, M. G. (2013). Image Processing for Solar Cell Analysis, Diagnostics and Quality Assurance Inspection. In I. Management Association (Ed.), Image Processing: Concepts, Methodologies, Tools, and Applications (pp. 1426-1462). IGI Global. https://doi.org/10.4018/978-1-4666-3994-2.ch071

Chicago

Mauk, Michael G. "Image Processing for Solar Cell Analysis, Diagnostics and Quality Assurance Inspection." In Image Processing: Concepts, Methodologies, Tools, and Applications, edited by Information Resources Management Association, 1426-1462. Hershey, PA: IGI Global, 2013. https://doi.org/10.4018/978-1-4666-3994-2.ch071

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Abstract

Image capturing, processing, and analysis have numerous uses in solar cell research, device and process development and characterization, process control, and quality assurance and inspection. Solar cell image processing is expanding due to the increasing performance (resolution, sensitivity, spectral range) and low-cost of commercial CCD and infrared cameras. Methods and applications are discussed, with primary focus on monocrystalline and polycrystalline silicon solar cells using visible and infrared (thermography) wavelengths. The most prominent applications relate to mapping of minority carrier lifetime, shunts, and defects in solar cell wafers, in various stages of the manufacturing process. Other applications include measurements of surface texture and reflectivity, surface cleanliness, integrity of metallization lines, uniformity of coatings, and crystallographic texture and grain size. Image processing offers the capability to assess large-areas (> 100 cm2) with a non-contact, fast (~ 1 second), and modest cost. The challenge is to quantify and interpret the image data in order to better inform device design, process engineering, and quality control. Many promising solar cell technologies fail in the transition from laboratory to factory due to issues related to scale-up in area and manufacturing throughput. Image analysis provides an effective method to assess areal uniformity, device-to-device reproducibility, and defect densities. More integration of image analysis from research devices to field testing of modules will continue as the photovoltaics industry matures.

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