Effect of various transparent conductive oxide layers on the efficiency of perovskite
solar cells
FARUK SANI, Nura Abdulmumini Yelwa.
Abstract
Recently, the efficiency of lead-based perovskite solar cells (PSCs) has been raised to 25.2 %. However, the
toxic nature of lead deters the commercialization of such efficient solar cells. Therefore, it is vital to further
explore lead-free solar cells with akin power conversion efficiency (PCE). This paper presents a numerical
investigation on the efficiency of methyl-ammonium tin bromide perovskite solar cell by employing different
Transparent Conductive Oxide (TCO) using Solar Cell Capacitance Simulator (SCAPS). To attain an optimum
efficiency, the effect of TCO such as Molybdenum trioxide (MoO3), Zinc oxide (ZnO), and Boron-doped zinc
oxide (BZO) thickness and doping concentration were varied (1013 cm-3 - 1021 cm-3) and investigated. The
results show that the PCE decreased as the TCO thickness increased from 100 nm to 400 nm. However, the
efficiency increased from 5.57 % to 7.23 % with the increasing doping concentration of the TCOs. MoO3
exhibited the best performance at 100 nm and doping concentration of 1021cm-3 with an efficiency of 7.23 %.
It can be concluded in the abstract that MoO3 can substitute the conventional TCO such as Fluorine-doped tin
oxide (FTO) and Indium-doped tin oxide (ITO) in perovskite solar cells.
Key words: efficiency, perovskite, solar cells, Transparent Conductive Oxide, thickness.
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