First investigation on CZTS electron affinity and thickness optimization using SILVACO-Atlas 2D simulation

Seboui, Zeineb; Dabbabi, Samar

doi:10.1016/j.simpat.2023.102758

Cited by 8 publications

(3 citation statements)

References 28 publications

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“…In addition to the SCAPS-1D simulator, modeling solar cell devices may also be done using other simulating programs such as AFORS-HET, TCAD, Silvaco ATLAS, and Lumerical. However, device optimization is not available in all sorts of solar cells in PV solar cells due to a few limitations and insufficient methods in physical models and parameters [56][57][58][59][60][61][62][63]. However, the main issue with the SCAPS-1D is the struggle to solve multi-dimensional issues, and it is also difficult to comprehend the findings in detail.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Different Perovskite Active Layers for Attaining Higher Efficiency Solar Cells: Numerical Simulation Approach

Bhattarai,

Mohammed,

Madan

et al. 2023

Sustainability

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The simulated device structures of ITO/ZnO/Perovskite absorber layers (PAL)/Spiro-OMeTAD/Au with distinct absorbers were modeled and investigated using solar cell capacitance simulator (SCAPS-1D) simulating software (version 3.8). The primary objective is to enhance the thermal stability of the solar device. As the absorber thickness and temperature impact PV performance parameters, thus main aim of this work is to determine the optimum thickness of PAL as well as the temperature affectability on the PV performance of the cells. It was also observed that the maximum PV parameters (among the cells under consideration), viz. 29% PCE, are achieved with the formamidinium tin iodide (FASnI3) at the thickness of 600 nm. Similarly, the temperature of 300 K shows a much-improved efficiency offering nearly 29%. Further, the external quantum efficiency (EQE) and J-V also confirm the determent of the more stable, lead-free, FASnI3-based device, which can provide an effective way to develop highly efficient, low-cost solar cell devices.

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Section: Introductionmentioning

confidence: 99%

Comparative Study of Different Perovskite Active Layers for Attaining Higher Efficiency Solar Cells: Numerical Simulation Approach

Bhattarai,

Mohammed,

Madan

et al. 2023

Sustainability

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“…However, they use the rare metals Ga and In, and contain the toxic element Se, thereby presenting concerns regarding their environmental impacts. An environmentally friendly, earth-abundant, nontoxic, and inexpensive alternative compound is essential for the long-term commercialization of solar cells, and Cu 2 ZnSnS 4 (CZTS) thin films have attracted attention as environmentally friendly, earth-abundant, and inexpensive alternatives considering these factors [ 1 , 2 , 3 , 4 , 5 ]. However, their disadvantage is poor crystal quality owing to their large number of elements.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Sulfide Annealing Conditions for Ag8SnS6 Thin Films

Munekata,

Uchimura,

Araki

et al. 2023

Materials

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Ag8SnS6 (ATS) has been reported to have a band gap of 1.33 eV and is expected to be a suitable material for the light-absorbing layers of compound thin-film solar cells. However, studies on solar cells that use ATS are currently lacking. The objective of this study is to obtain high-quality ATS thin films for the realization of compound thin-film solar cells using vacuum deposition and sulfide annealing. First, glass/SnS/Ag stacked precursors are prepared by vacuum deposition. Subsequently, they are converted to the ATS phase via sulfide annealing, and various process conditions, namely, annealing time, annealing temperature, and number of steps, are studied. By setting the heat treatment temperature at 550 °C and the heat treatment time at 60 min, a high-quality ATS thin film could be obtained. Multi-step heat treatment also produces thin films with nearly no segregation or voids.

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“…In addition, since CZTS and CZTSe have different band gaps, tandem solar cells are designed based on them. A CZTS/CZTSe tandem solar cell with an efficiency of 26.21% was designed in simulation [19].…”

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confidence: 99%

Optimizing CZTSe Solar Cell Architecture: Comparative Study of ZnO, TiO₂, and MoO₃ as Electron Transport Layers

Gulomov,

Accouche,

Ziyoitdinov

et al. 2024

IEEE Access

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This study investigates the optimization of Cu 2 ZnSnSe 4 (CZTSe)-based solar cells by employing distinct charge transport layers (CTLs) for enhancing their efficiency. ZnO, TiO 2 , and MoO 3 are evaluated as electron transport layers (ETLs), while NiOx serves as a hole transport layer (HTL). By systematically varying ETL and CZTSe layer thicknesses, the influence of these parameters on solar cell performance is explored. According to obtained results, it has been found that the optimum size of base and emitter layers are equal to 2 µm and 80 nm in n-ZnO/p-CZTSe/p-NiO x , 1.5 µm and 60 nm in n-TiO 2 /p-CZTSe/p-NiO x , as well as 1 µm and 60 nm in n-MoO 3 /p-CZTSe/p-NiO x . Maximum efficiencies of n-ZnO/p-CZTSe/p-NiO x , n-TiO 2 /p-CZTSe/p-NiO x , and n-MoO 3 /p-CZTSe/p-NiO x solar cells with optimal sizes are equal to 21.35%, 21.76% and 24.14%, respectively. So, MoO 3 with thickness of 60 nm is the optimal ETL for CZTSe based solar cell due to forming high electric field and large electrostatic potential difference which helps to separate effectively the photogenerated electron-hole pairs. Each solar cells reached to maximum open circuit voltage at minimum base thickness and to maximum short circuit current at maximum base thickness. Furthermore, the study assesses the potential of CZTSe, a promising alternative to traditional silicon-based solar cells, as it exhibits a tunable bandgap allowing for efficient sunlight absorption. The investigation delves into the unique ETL/CZTSe/HTL structure, utilizing ZnO, TiO 2 , and MoO 3 as ETLs and NiOx as the HTL. The results reveal that MoO 3 , with a thickness of 60 nm, emerges as the optimal ETL for CZTSe-based solar cells, achieving a peak efficiency of 24.14% due to its ability to create a high electric field and significant electrostatic potential difference, enhancing the effective separation of photogenerated electron-hole pairs. Additionally, the study explores the interplay between emitter and base layer thicknesses, demonstrating the impact on open circuit voltage and short circuit current, providing valuable insights for the design and optimization of CZTSe-based solar cells.

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First investigation on CZTS electron affinity and thickness optimization using SILVACO-Atlas 2D simulation

Cited by 8 publications

References 28 publications

Comparative Study of Different Perovskite Active Layers for Attaining Higher Efficiency Solar Cells: Numerical Simulation Approach

Comparative Study of Different Perovskite Active Layers for Attaining Higher Efficiency Solar Cells: Numerical Simulation Approach

Optimization of Sulfide Annealing Conditions for Ag8SnS6 Thin Films

Optimizing CZTSe Solar Cell Architecture: Comparative Study of ZnO, TiO₂, and MoO₃ as Electron Transport Layers

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