Efficiency enhancement of triple absorber layer perovskite solar cells with the best materials for electron and hole transport layers: numerical study

Abstract

In this paper, a novel perovskite solar cell (PSC) with a triple absorber layer is numerically simulated using Solar Cell Capacitance One-Dimensional software (SCAPS-1D). The initial simulation of the structure (FTO/TiO2/CsSnI3/CsSnGeI3/Cs3Sb2Br9/Spiro-OMeTAD/Au) reveals that by combining Cesium Tin Triiodide (CsSnI3), Cesium Tin-Germanium Triiodide (CsSnGeI3) and Cesium Antimony Bromide (Cs3Sb2Br9) as triple absorber layer, we obtain a higher efficiency {31.81%} than the single (CsSnI3), and double (CsSnI3/CsSnGeI3) layer structures, whose efficiencies are 12.87% and 29.41%, respectively. Then, to optimize the proposed structure, different parameters like; thicknesses of the triple absorber layer, different materials of ETL (electron transport layer) and HTL (hole transport layer), thicknesses of ETL & HTL, as well as the operating temperature have been investigated. The optimized structure (0.4/0.1/0.1 µm of CsSnI3/CsSnGeI3/Cs3Sb2Br9 as triple absorber layer; 0.1 µm of tungsten trioxide WO3 as ETL and 0.35 µm of Copper(I) Oxide Cu2O as HTL, as well as an optimum temperature of 300 K) shows a remarkable photovoltaic parameters i.e., JSC = 32.640774 mA/cm2, VOC = 1.2442 V, FF = 89.17% and η = 36.21% (which corresponds to an improvement of 4.4% compared to the initial proposed structure {31.81%}). This study’s simulation results open a better route toward fabricating highly efficient perovskite solar cells

Numerical investigation of octakis (4-methoxyphenyl) spiro [fluorene-9, 9′ xanthene]−2, 2′, 7, 7′-tetraamine) (X60) as hole transport layer in solid-state dye-sensitized solar cell

“…Table 1 shows the input parameters employed in this numerical study, obtained from the literature [13,[17][18][19]25]. Table 2 presents the X60/N719 defect interface parameters [18,19].…”

Theoretical analysis of introducing CeOx as a passivation layer: an innovative approach to boosting CIGS solar cell efficiency

“…The absorber layer in Copper Indium Gallium Selenide (CIGS) solar cells plays a vital role in converting sunlight into electrical energy. Its shows a continuous decrease with thicker absorber layers due to charge carrier recombination [26]. This decreasing trend in V OC is unfavorable for solar cell performance, as the efficiency of the solar cell is directly dependent on the open circuit voltage.…”

Simulations and Suitability Study of Inorganic Cu‐Based Hole‐Transport Layers in Planar CH3NH3SnI3‐Based Perovskite Solar Cell and Module

“…Use of copper oxide (CuO) as HTL in FTO/TiO 2 /CH 3 NH 3 SnI 3 /CuO/Au solar cell deign significantly affected the device performance and exhibited vital role in extraction of holes to improve output performance of the solar cell. [ 28–30 ]…”

“…Use of copper oxide (CuO) as HTL in FTO/TiO 2 /CH 3 NH 3 SnI 3 /CuO/Au solar cell deign significantly affected the device performance and exhibited vital role in extraction of holes to improve output performance of the solar cell. [28][29][30] In solar cell design, the selection of structural layers is a huge task along with perovskite absorber material. The capacity of materials to absorb light at various wavelengths is indicated by their unique characteristics such as bandgap energy, refractive index, electron affinity, dielectric permittivity, and absorption coefficient.…”