Lasers in energy device manufacturing

A. Ostendorf; A. Schoonderbeek

doi:10.1117/12.760350

23 February 2008 Lasers in energy device manufacturing

A. Ostendorf, A. Schoonderbeek

Proceedings Volume 6880, Laser-based Micro- and Nanopackaging and Assembly II; 68800B (2008) https://doi.org/10.1117/12.760350
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

Global warming is a current topic all over the world. CO₂ emissions must be lowered to stop the already started climate change. Developing regenerative energy sources, like photovoltaics and fuel cells contributes to the solution of this problem. Innovative technologies and strategies need to be competitive with conventional energy sources. During the last years, the photovoltaic solar cell industry has experienced enormous growth. However, for solar cells to be competitive on the longer term, both an increase in efficiency as well as reduction in costs is necessary. An effective method to reduce costs of silicon solar cells is reducing the wafer thickness, because silicon makes up a large part of production costs. Consequently, contact free laser processing has a large advantage, because of the decrease in waste materials due to broken wafers as caused by other manufacturing processes. Additionally, many novel high efficiency solar cell concepts are only economically feasible with laser technology, e.g. for scribing silicon thin-film solar cells. This paper describes laser hole drilling, structuring and texturing of silicon wafer based solar cells and describes thin film solar cell scribing. Furthermore, different types of lasers are discussed with respect to processing quality and time.

Citation Download Citation

A. Ostendorf and A. Schoonderbeek "Lasers in energy device manufacturing", Proc. SPIE 6880, Laser-based Micro- and Nanopackaging and Assembly II, 68800B (23 February 2008); https://doi.org/10.1117/12.760350

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