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Coating glass with soot
The external output characteristics
using a graphite pencil layer as a catalyst may be linear,
and this may be undesirable. A better performing, but more
fragile, catalyst can be deposited by holding the conductive
side of the counter electrode with tweezers at the tip of
a candle flame for no longer than 30 seconds. Move the plate
back and forth to produce a thin, uniform coating.
The black soot-coated glass is then allowed to cool, and soot
is removed from a 5 mm strip at one end of the plate and the
edges, using a Q-tip or cotton swab. The catalyst coating
on the counter electrode should not be touched. It should
not be rubbed or slid against the TiO2 electrode or any other
surface. The counter electrode should be picked up at the
edges and carefully placed where it is desired.
Learn more
about the solar cell kit.
© 2007, Sol Ideas Technology Development
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