Optimization of a high-performance lead-free cesium-based inorganic perovskite solar cell through numerical approach

Tulka, Tasmin Kamal; Alam, Nowshin; Akhtaruzzaman, Md.; Sobayel, K.; Hossain, M. Mofazzal

doi:10.1016/j.heliyon.2022.e11719

Cited by 16 publications

(4 citation statements)

References 51 publications

(51 reference statements)

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“…𝛥𝐸 𝑐 = 𝜒 𝐸𝑇𝐿 − 𝜒 𝐴𝑏𝑠 (6) 𝛥𝐸 𝑣 = (𝜒 𝐻𝑇𝐿 + 𝐸𝑔 𝐻𝑇𝐿 ) − (𝜒 𝐴𝑏𝑠 + 𝐸𝑔 𝐴𝑏𝑠 ) (7) The basic physical parameters used in this simulation have been taken from research works on the materials used in the structure [14,15,16,17].…”

Section: Structure Methodology and Theoretical Modelmentioning

confidence: 99%

Study of an Efficient and Environmentally Friendly Germanium-Based CsGeI3 Perovskite Structure For Single and Double Solar Cells

Arbouz

2024

IJCESEN

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This work deals with the simulation and optimization of a single perovskite solar cell based on the lead-free, inorganic perovskite absorber CsGeI3 with a bandgap energy of 1.6 eV. An appropriate simulation model was designed on the basis of the physical properties employed and carefully selected. Firstly, the study demonstrated the role of increasing the bulk defect density of the absorber as well as the interface defect density at the boundaries between the absorber and the carrier transport layers on increasing the photo-generated carrier recombination velocity, causing the collapse of the solar cell performance. The effect of layer thickness on photovoltaic parameters was also investigated. Next, various combinations of ETL and HTL electron and hole transport materials, with different bandgap alignments with the absorber were studied. The performance of the different structures was used to determine the optimum structure for obtaining the best results. An efficiency of 15.9% was obtained with the ETL-SnO2 /CsGeI3/HTL- SrCu2O2 architecture. Finally, the optimized structure was simulated in a 2T-tandem configuration in combination with the 1.3 eV-CsSnI3 based solar sub-cell. It was found that the efficiency could reach 25%. The aim of this work is to develop an efficient, lead-free and stable perovskite cell structure that could replace its hybrid perovskite counterpart and be used as a performing sub-cell in a tandem structure.

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Section: Structure Methodology and Theoretical Modelmentioning

confidence: 99%

Study of an Efficient and Environmentally Friendly Germanium-Based CsGeI3 Perovskite Structure For Single and Double Solar Cells

Arbouz

2024

IJCESEN

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“…The continuity equation, on the other hand, ensures the preservation of all charge carriers through their movement, creation, and annihilation [41]. The continuity equation for electrons and holes is given by expression 2.…”

Section: Theoretical Methodologymentioning

confidence: 99%

Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Njema,

Kibet,

Rono

et al. 2024

IET Optoelectronics

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Among the emerging photovoltaic technologies, solid‐state dye‐sensitised solar cells (ssDSSCs) have attracted considerable interest due to their cost‐effective production, adjustable characteristics, and potential for lightweight and flexible applications. Nevertheless, achieving efficiencies comparable to established technologies, such as perovskite and silicon‐based solar devices, have proven challenging. Herein, the device structure, Pt/PEDOT: PSS/N719 dye/PC61BM/ITO is investigated theoretically using the solar cell capacitance simulator (SCAPS‐1D). Groundbreaking advancement is introduced in ssDSSC design, achieving remarkable theoretical power conversion efficiency of 20.73%, surpassing the performance reported in traditional dye‐based solar cell technologies. The model ssDSSC demonstrates an exceptional Fill factor of 86.64%, indicating efficient current collection; along with a modest short‐circuit current density (Jsc) of 22.38 mA/cm2 and an impressive open‐circuit voltage (Voc) of 1.0691 V, highlighting efficient light absorption and charge separation. Mott–Schottky capacitance analysis and parasitic resistances (series and shunt) have been thoroughly discussed. Despite the fact that only numerical simulation is involved, the proposed ssDSSCs structure gives insights into the fabrication of a highly efficient solar cell that can be injected into the production workflow in order to advance the photovoltaic technology of the solid‐state DSSC.

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“…With increasing thickness, a greater number of photon energy can be absorbed. Furthermore, this energy can reach deeper into the PVK layer, generating more electronhole pairs [38]. Consequently, this leads to an elevated J SC and subsequently enhances overall efficiency.…”

Section: Optimization Of Absorber Layer Thickness and Carrier Concent...mentioning

confidence: 99%

Correlation between defect properties and the performance of eco-friendly CsSnI₃-based perovskite solar cells

Mottakin,

Su’Ait,

Chelvanathan

et al. 2024

Semicond. Sci. Technol.

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This study investigates the potential use of eco-friendly, all-inorganic CsSnI3 perovskite (PVK) as an absorber layer. Despite having higher temperature stability of CsSnI3,the challenge is to get a uniform and defect-free film that hinders the performance. To accomplish this goal, we investigated several PSC performance-related variables, including material defect density (Nt), transport materials, layer thickness, temperature impacts, and back contact work functions. TiO2 demonstrates the best performances as ETL and PEDOT:PSS as HTL. Negative valence band or conduction band offset values indicate no barrier preventing photogenerated carriers from flowing into the charge transport layers. The simulation result shows that HTL thickness shows a higher impact than ETL thickness. For the PVK thickness of 500 nm and a carrier density of 1018 cm−3, the device offers an optimum PCE of 20.1 %. The PVK defect significantly impacts performance more than the interface defect. Higher recombination occurs at the TiO2-CsSnI3 interface. Defects in the deep-level trap (DLT) at the middle of the band gap energy are detrimental to device performance. The proposed structure's temperature coefficient (CT) is approximately ‒0.367 % K‒1, indicating excellent thermal stability in an open environment. Selection of 'A' cation, addition of additives, or carefully controlled fabrication technique can passivate the defect. This research shows the strategy for creating defects-free perovskite solar cell devices, ultimately enhancing performance and stability.

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Optimization of a high-performance lead-free cesium-based inorganic perovskite solar cell through numerical approach

Cited by 16 publications

References 51 publications

Study of an Efficient and Environmentally Friendly Germanium-Based CsGeI3 Perovskite Structure For Single and Double Solar Cells

Study of an Efficient and Environmentally Friendly Germanium-Based CsGeI3 Perovskite Structure For Single and Double Solar Cells

Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Correlation between defect properties and the performance of eco-friendly CsSnI₃-based perovskite solar cells

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Optimization of a high-performance lead-free cesium-based inorganic perovskite solar cell through numerical approach

Cited by 16 publications

References 51 publications

Study of an Efficient and Environmentally Friendly Germanium-Based CsGeI3 Perovskite Structure For Single and Double Solar Cells

Study of an Efficient and Environmentally Friendly Germanium-Based CsGeI3 Perovskite Structure For Single and Double Solar Cells

Numerical simulation of a novel high performance solid‐state dye‐sensitised solar cell based on N719 dye

Correlation between defect properties and the performance of eco-friendly CsSnI3-based perovskite solar cells

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Correlation between defect properties and the performance of eco-friendly CsSnI₃-based perovskite solar cells