ad
T H I N F I L M E D P H O T O V O L T A I C C E L L S
1. Cheaper to produce than crystalline silicon
but not as efficient
2.
Traditional solar cells are made up using
300-400micrometre thick wafers,
however these cells
generate 90%
of its energy from the top 15-20 micrometres
of the cell. The rest of the
cell is used as support.
3.
Thin Film technology consists of depositing
a thin layer of semiconductor
onto an already present surface
(glass window, roof panels)
4.
We’ve seen them as solar powered calculators
and watches
5.
The material uses an amorphous silicon,
which is of lower grade only 8%
efficient (currently) to the traditional
flat plate collectors. Amorphous
cells usually degrade with continued
exposure to sunlight, but new
developements are fixing this problem.