Abstract
In this paper, a nanostructured perovskite solar cell (PSC) on a textured silicon substrate is examined, and its performance is analyzed. First, its configuration and the simulated unit cell are discussed, and its fabrication method is explained. In this proposed structure, poly-dimethylsiloxane (PDMS) is used instead of glass. It is shown that the use of PDMS dramatically reduces the reflection from the cell surface. Furthermore, the light absorption is found to be greatly increased due to the light trapping and plasmonic enhancement of the electric field in the active layer. Then, three different structures, are compared with the main proposed structure in terms of absorption, considering the imperfect fabrication conditions and the characteristics of the built PSC. The findings show that in the worst fabrication conditions considered structure (FCCS), short-circuit current density (Jsc) is 22.28 mA/cm2, which is 27% higher than that of the planar structure with a value of 17.51 mA/cm2. As a result, the efficiencies of these FCCSs are significant as well. In the main proposed structure, the power conversion efficiency (PCE) is observed to be improved by 32%, from 13.86% for the planar structure to 18.29%.
Highlights
In this paper, a nanostructured perovskite solar cell (PSC) on a textured silicon substrate is examined, and its performance is analyzed
It is widely used in PSCs due to its high chemical stability, appropriate optical and electronical properties, and simple deposition methods[35,36]
The results have shown that the use of PDMS instead of glass in the proposed structure reduces the reflection loss of the cell
Summary
A nanostructured perovskite solar cell (PSC) on a textured silicon substrate is examined, and its performance is analyzed. The use of nanostructures with different dimensions and shapes in the construction of various types of solar cells resulted in high efficiencies with less volume of absorbing material and generally more complex cell s tructures[12,13,14,15,16,17]. Nanostructures enhance cell performance through the mechanism of light trapping in the absorbing medium[18], improving carrier e xtraction[19], or concentrating the electromagnetic field in the active layer using various configurations, especially plasmonic s tructures[20]. If the size of the MNS were small (
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