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Improving efficiency of perovskite solar cell using optimized front surface nanospheres grating
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Improving efficiency of perovskite solar cell using optimized front surface nanospheres grating
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Journal Article
Improving efficiency of perovskite solar cell using optimized front surface nanospheres grating
2021
Overview
Perovskite solar cells (PSCs) are introduced to photovoltaic field as a promising alternative to conventional silicon solar cells because of having low fabrication cost, flexible structure and thin thickness, yet with some environmental concerns of having metal cations. In this paper, we discuss the effect of using SiO
2
nanospheres front surface grating as one of the light trapping techniques on the performance of the PSC and how this trapping method enhances the power conversion efficiency without further need of increasing perovskite absorber layer thickness. A 3D finite element method solver is employed to simulate the proposed solar cell structure and to obtain its optical and electrical properties, and then, we optimize both of the size and the periodicity of the nanospheres grating. Results show that maximum efficiency of the proposed model of PSC with frontal surface grating is
26.06
%
, with short circuit current density of
31.6
m
A
/
cm
2
, while the efficiency of flat surface PSC is
21.9
%
, meaning that the power conversion efficiency is improved by
4.16
%
in case of surface grated cell. The maximum value of output power observed in grated surface PSC is
26.058
m
W
/
cm
2
, about
4.158
m
W
/
cm
2
higher than its value for the flat surface one mentioned in the previously published relevant literature.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
