Comparative Study of Distinct Halide Composites for Highly Efficient Cesium-Based Perovskite Solar Cells

Abstract

In recent years, perovskite solar cells (PSCs) have appeared as frontrunners in the renewable photovoltaic (PV) landscape. This study presents a substantially improved perovskite material, showcasing enhanced optoelectronic performance and potential for streamlined fabrication processes. Our main focus lies in identifying the optimal cesium halide composition, in conjunction with TiO 2 and CuI as charge transport layers (CTLs), that yield the highest efficiency. Through meticulous optimization encompassing absorber thickness, CTL thickness, defect density, and interface properties, our findings reveal that CsPbI 2 Br-based PSCs exhibit a remarkable boost in power conversion efficiency (PCE) of approximately 15.52%. In contrast, CsPbBr 3 -based PSCs exhibit comparatively lower values for short-circuit current density (J SC ) and open circuit voltage (V OC ), which results in a PCE of 13.96%. This investigation extends to exploring various parameters, including temperature effects, impedance characteristics, series resistance, quantum efficiency (QE), and current− voltage (J−V) behavior. The comprehensive nature of this study bears substantial significance in advancing the efficient fabrication of cesium-based PSC devices. The demonstrated perovskite material holds immense promise across diverse applications in the foreseeable future, owing to its cost-effectiveness and favorable optical absorption properties.

Simulation and optimization of 30.17% high performance N-type TCO-free inverted perovskite solar cell using inorganic transport materials

“…The proposed device produced quantum efficiency curve covering the entire visible spectrum (300–900 nm) achieving an optimum quantum efficiency (QE) of 99.38% at 580 nm wavelength, which is in agreement with other works 15 , 43 , 54 , 61 , 78 , 79 is presented as Fig. 12 .…”

“…The cation embraces individual or mixed compositions of methylammonium (MA), cesium (Cs), and formamidinium (FA), whereas the halogen anion embraces individual or mixed compositions of Cl, Br, and I 14 . Recent researches have focused on perovskite solar cells (PSCs), due to their increased efficiencies 15 , low processing temperatures, high absorption, long diffusion length, high charge mobility, low trap density, low exciton binding energy, tunable bandgap and low-cost of fabrication 14 , 15 . PSCs have been the subject of numerous studies, which have improved energy power conversion efficiencies (PCEs) from 3.8% in 2009 to about 25% after 13 years of development 16 , while 15 reported PCE of 25.6%, and 26.1% have recently been attained 17 .…”

“…Recent researches have focused on perovskite solar cells (PSCs), due to their increased efficiencies 15 , low processing temperatures, high absorption, long diffusion length, high charge mobility, low trap density, low exciton binding energy, tunable bandgap and low-cost of fabrication 14 , 15 . PSCs have been the subject of numerous studies, which have improved energy power conversion efficiencies (PCEs) from 3.8% in 2009 to about 25% after 13 years of development 16 , while 15 reported PCE of 25.6%, and 26.1% have recently been attained 17 . The impressive characteristics of perovskite materials include good charge carrier mobility, high coefficient of absorption, high diffusion charge carrier and low binding energy 18 , 19 .…”

Improving the Photoelectric Conversion Efficiency of Cs2TiBr6-Based Perovskite Solar Cells Using a Theoretical Simulation Method

“…Presently, simulation tools like SILVACO, wxAMPS, and SCAPS-1D have gained widespread usage in research domains such as solar cells. − In this work, we utilized the SCAPS-1D solar cell simulation program, developed by Ghent University in Belgium. Its reliability has been rigorously confirmed in numerous prior studies. − N normalp normalh normalo normalt normalo ( λ , x ) = N normalp normalh normalo normalt normalo ( λ ) · T normalf normalr normalo normaln normalt ( λ ) · exp ( − x α false( x false) ) 1 + R normalb normala normalc normalk ( λ ) exp ( − 2 false( d − x false) α false( λ false) ) 1 − R normalb normala normalc normalk ( λ ) R int exp ( − 2 d α false( λ false) ) G ( x ) = ∫ λ min λ…”

Numerical simulation based performance enhancement approach for an inorganic BaZrS3/CuO heterojunction solar cell

“…It is made up of the following parts: A = Ca, Sr, Pb, Ba, Zn, Mg, Cd, Sn, and B = Zr, Hf, Sn, Si, Ge, Pb, Ti, and X = Se, S. They have a lower ionic concentration than oxides or halides, but they nevertheless have a higher ion concentration than regular semiconductors. These perovskite types have not received much attention despite being synthesised more than 50 years ago [26][27][28][29][30][31][32] , leading to a scarcity of knowledge on their physical attributes [33][34][35] . Following the screening of theory work, the chalcogenide materials ABX 3 situation changed [36][37][38] .…”