PHOTOVOLTAIC CELLS OF UNCONVENTIONAL SHAPE
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2012, Vol 59, Issue 259
Abstract
Applied in practice, silicon photovoltaic panels are combined from individual cells, built in the shape of a rectangle or square, due to the technology for the production of the basic materials - monocrystalline or polycrystalline silicon. Small cells, with an area of several cm2, applied for power supply of calculators, toys, and low-power light sources, are also similar shapes. Implemented in different countries successful solutions with decorative and esthetic qualities in which the photovoltaic panels are incorporated into modern architecture, also use these cells with standard shapes. An innovative method for laser cutting of silicon cells by using the trajectory fiber laser emitting nanosecond pulse, is developed at the Institute of Electrical Engineering Systems of the Lodz University of Technology. This method allows the production of solar decorative elements of any shapes for artistic and commercial applications. Microscopic examination revealed at least a satisfactory quality of the cutting edge, and only a slight effect of the laser beam on the change the structure of layers of active cells. Tests of the cut parts of cells confirmed a small impact of the designated cutting process on characteristics and parameters of current, which gives favorable conditions for the use of new technology in a wider scale.
Authors and Affiliations
Ryszard PAWLAK, Ewa KORZENIEWSKA, Marcin LEBIODA, Adam ROSOWSKI, Jacek RYMASZEWSKI, Maciej SIBIŃSKI, Mariusz TOMCZYK, Maria WALCZAK
Keywords
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