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1. EFFECT OF SPECTRAL IRRADIANCE VARIATIONS ON
THE PERFORMANCE OF HIGHLY EFFICIENT
ENVIRONMENT-FRIENDLY SOLAR CELLS
ABSTRACT
The increasing environmental concerns on photovoltaic (pv) materials have attracted
much attention to Environment-friendly materials for solar energy conversion. In this Paper, the
environment-friendly materials based on dye-sensitized Solar cells (dssc), cuznsnsse2 (czts),
andch3nh3 sni3 based On perovskite solar cells have been studied for their spectral dependence
At selected different locations with varying parameters Such as air mass, aerosol optical depth,
and precipitable water. The spectral dependences of the materials have been obtained by The use
of the spectral factor, and ground-based long-term climatologies In conjunction with the simple
model of the atmospheric Radiative transfer of sunshine have been used. Results show that The
perovskite and dssc solar cells show an important spectral dependence With annual spectral
gains up to 3% and spectral losses Up to−15%. On the other hand, czts solar cells show a low
spectral Dependence with annual spectral gains up to 2% and spectral Losses up to −4%.