عنوان مجله
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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کلیدواژهها
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Nanomaterials, Environment-friendly solar cells, TiO2, Photovoltaic nanodevices, Mott–Schottky curves
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چکیده
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The lead is a heavy metal with hazardous impacts on environment and human life. Lead-free perovskite solar cells have
attracted much attention in recent years, due to eco-friendly characteristics. Meanwhile, Pb-containing cells showed the
highest efficiencies among the various types of cells. Hence, designing novel Pb-free solar cells with comparable or better
performance than the Pb-containing ones is highly required. In this work, a lead-free methyl-ammonium-germaniumiodide
(
MAGeI3)-based perovskite solar cell with ITO/TiO2/MAGeI3/Spiro-OMeTAD/Ag multilayer nanostructure has been
proposed and its main characteristics including open-circuit voltage (
VOC) and power conversion efficiency (η) have been
evaluated and compared with those of MAPbI3-
based cell, in simulation study. The VOC
and η of the MAGeI3-
based cell
(1.18 V and 11.9%) have been found comparable with those of the MAPbI3
one (1.10 V and 14.6%). These results can excite
more attention to Ge as a more environment-friendly element than Pb, in highly efficient upcoming perovskite solar cells.
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