Experimental investigation of spectral effects on amorphous silicon solar cells in outdoor operation
Ralph Gottschalg
Tom Betts
David Infield
Michael J. Kearney
2134/8219
https://repository.lboro.ac.uk/articles/conference_contribution/Experimental_investigation_of_spectral_effects_on_amorphous_silicon_solar_cells_in_outdoor_operation/9554195
The effect of varying spectrum on PV output is often
underestimated in the case of amorphous silicon photovoltaic
devices. This paper gives an indication of the order
of magnitude of the seasonal variation of the useful irradiance
in a maritime climate and also shows that this will
involve a direct change in efficiency. This can be expected
to be in the range of 15 percent around the annual average,
thus explaining the seasonal performance. The spectral
effects are investigated by distinguishing between a
primary and a secondary effect. The primary effect is dependent
on the availability of useful spectral irradiance
wflile the secondary effect depends also on the spectral
composition of the light in the useful range. It is shown
that the secondary effect is especially significant for double
junction devices.
2011-03-15 16:41:33
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