Computational Modeling of Polycrystalline Silicon on Oxide Passivating Contact for Silicon Solar Cells

Younas, Rehan; Imran, Hassan; Shah, Syed Ijlal Hassan; Abdolkader, Tarek M.; Butt, Nauman Zafar

doi:10.1109/ted.2019.2900691

Cited by 16 publications

(7 citation statements)

References 43 publications

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“…Simulation has been used for the optimization of parameters in energy [21], [22], transportation [23]- [25], heat transfer [26]- [28], production planning [29], water, and food production [6], [30]. Numerical simulation has also been employed in improving the properties of solar cells [14], [31], [32].…”

Section: Numerical Modeling and Materials Parametersmentioning

confidence: 99%

Simulation and Numerical Investigation of the Effect of Temperature and Defect on ZnTe/ZnSe/ZnO Thin-Film Photovoltaic Solar Cell Performance Efficiency

Zyoud

2023

IREA

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Thin film-based solar cell semiconductor emerges as a promising candidate for solar photovoltaic future applications. A proposed heterojunction ZnTe/ZnSe/ZnO thin film-based solar cell has been simulated by using Solar Cell Capacitance Simulator-One Dimension (SCAPS-1D) in order to study the impact of temperature and defect layers on its efficiency parameters. The heterojunction thin film-based solar cell has been selected for simulation due to its low cost, availability, and reduced toxicity compared to other absorber layer materials. Numerical modeling has been used to comprehend device properties before fabrication. The results indicate that the efficiency parameters (Jsc, VOC, FF, and η) have been significantly affected by temperature and the presence of defect layers. The simulated J-V characteristics demonstrate how defect density affects solar cell efficiency parameters. In the defect system, the efficacy parameters have been reduced except for a slight increase in VOC at 300 K. The findings of this study are significant as they demonstrate the importance of understanding the impact of temperature and defect layers on the performance of thin film-based solar cells. The use of numerical modeling tools like SCAPS-1D can aid in the design and development of new solar cell technologies, which could ultimately lead to the widespread adoption of solar energy as a clean and sustainable energy source.

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Section: Numerical Modeling and Materials Parametersmentioning

confidence: 99%

Simulation and Numerical Investigation of the Effect of Temperature and Defect on ZnTe/ZnSe/ZnO Thin-Film Photovoltaic Solar Cell Performance Efficiency

Zyoud

2023

IREA

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“…Based on the observation that tunneling and pinhole transport may coexist and could both potentially be the dominant means of transport depending on the SiO x film properties such as thickness, , a model superposing the two mechanisms was proposed, which can explain experimentally determined J 0 and ρ c values for various types of poly-Si passivating contacts . Subsequently, this combined model was refined and implemented by various groups for investigating, predicting, and optimizing the properties of poly-Si passivating contacts. − While these implementations are powerful tools, they still rely on a few simplifying assumptions. One common assumption of the models implemented is that the diffused region in the substrate is homogeneous. − However, process simulation studies have shown for both phosphorus (P)- and boron (B)-doped poly-Si passivating contacts that local enhancement of dopant diffusion is expected in the substrate under the pinholes, as depicted schematically in Figure . , …”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, this combined model was refined and implemented by various groups for investigating, predicting, and optimizing the properties of poly-Si passivating contacts. − While these implementations are powerful tools, they still rely on a few simplifying assumptions. One common assumption of the models implemented is that the diffused region in the substrate is homogeneous. − However, process simulation studies have shown for both phosphorus (P)- and boron (B)-doped poly-Si passivating contacts that local enhancement of dopant diffusion is expected in the substrate under the pinholes, as depicted schematically in Figure . , …”

Section: Introductionmentioning

confidence: 99%

Local Enhancement of Dopant Diffusion from Polycrystalline Silicon Passivating Contacts

Fırat

Wouters

Lagrain

et al. 2022

ACS Appl. Mater. Interfaces

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Passivating contacts consisting of heavily doped polycrystalline silicon (poly-Si) and ultrathin interfacial silicon oxide (SiO x ) films enable the fabrication of high-efficiency Si solar cells. The electrical properties and working mechanism of such poly-Si passivating contacts depend on the distribution of dopants at their interface with the underlying Si substrate of solar cells. Therefore, this distribution, particularly in the vicinity of pinholes in the SiO x film, is investigated in this work. Technology computer-aided design (TCAD) simulations were performed to study the diffusion of dopants, both phosphorus (P) and boron (B), from the poly-Si film into the Si substrate during the annealing process typically applied to poly-Si passivating contacts. The simulated 2D doping profiles indicate enhanced diffusion under pinholes, yielding deeper semicircular regions of increased doping compared to regions far removed from the pinholes. Such regions with locally enhanced doping were also experimentally demonstrated using high-resolution (5–10 nm/pixel) scanning spreading resistance microscopy (SSRM) for the first time. The SSRM measurements were performed on a variety of poly-Si passivating contacts, fabricated using different approaches by multiple research institutes, and the regions of doping enhancement were detected on samples where the presence of pinholes had been reported in the related literature. These findings can contribute to a better understanding, more accurate modeling, and optimization of poly-Si passivating contacts, which are increasingly being introduced in the mass production of Si solar cells.

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“…Nevertheless, the increase in material quality, particularly during cell processing or crystallization process, has now contributed to the demonstration of efficiencies up to 22 % [6]. On the other hand, mc-Si on oxide junction passivating contacts have been demonstrated as selective carrier contacts for Si-based solar cells with high-efficiency [7]. mc-Si wafers have become the pillar of the PV market owing to their lower cost, availability, enhanced quality of wafers, and understanding of how to convert them into highly efficient solar cells.…”

Section: Introductionmentioning

confidence: 99%

From Crystalline to Low-cost Silicon-based Solar Cells: a Review

Okil

Salem

Abdolkader

et al. 2021

Silicon

Self Cite

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Renewable energy has become an auspicious alternative to fossil fuel resources due to its sustainability and renewability. In this respect, Photovoltaics (PV) technology is one of the essential technologies. Today, more than 90 % of the global PV market relies on crystalline silicon (c-Si)-based solar cells. This article reviews the dynamic field of Si-based solar cells from high-cost crystalline to low-cost cells and investigates how to preserve high possible efficiencies while decreasing the cost. First, we discuss the various types of c-Si solar cells with different device architectures and report recent developments. Next, thin-film solar cells with their recent advancements are given. Then, Si nanowires solar cells and their recent results are discussed. Finally, we present the most encouraging tendencies in achieving low-cost solar cells utilizing cheap materials like heavily doped silicon wafers.

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Computational Modeling of Polycrystalline Silicon on Oxide Passivating Contact for Silicon Solar Cells

Cited by 16 publications

References 43 publications

Simulation and Numerical Investigation of the Effect of Temperature and Defect on ZnTe/ZnSe/ZnO Thin-Film Photovoltaic Solar Cell Performance Efficiency

Simulation and Numerical Investigation of the Effect of Temperature and Defect on ZnTe/ZnSe/ZnO Thin-Film Photovoltaic Solar Cell Performance Efficiency

Local Enhancement of Dopant Diffusion from Polycrystalline Silicon Passivating Contacts

From Crystalline to Low-cost Silicon-based Solar Cells: a Review

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