| heal.abstract |
The need for reduction of materials used in photovoltaic cells, as well as reducing man-
ufacturing costs led to the further development and study of thin film technology and their
properties. An important part of the production process is the microscribing of the films
in order to make the conversion from individual solar cells to full modules.
This master dissertation presents a micro-processing of two types of thin film tech-
nolgy are being presented. The type of films used, consist of zinc oxide (ZnO) and CIGS
thin films. The ZnO films were samples provided by the photovoltaic production company
Heliosphera, while CIGS films were produced by the method of e-beam evaporation method.
For the microscribing process, the experimental setup of the National Research Foun-
dation, the apparatus was used included a pulsed Nd:YAG laser (at 355nm,repetition rate
10Hz and energy from 0.7 to 2.0 mJ/p, when applicable), various optical components (focus
lenses, apertures) and a movable base, on which the films were placed.
The aim of the engravings of thin films was to create channels of 50μm width. During
the engraving process, the in
uence of various factors such as the energy of laser, opti-
cal components and the velocity of the moving table, on the quality of the channel, was
examined. |
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