Influence of base doping level on the npn microstructure solar cell performance: A TCAD study

Salem, Marwa S.; Zekry, Abdelhalim; Abouelatta, Mohamed; Alshammari, Mohammad T.; Alanazi, Adwan; Al‐Dhlan, Kawther A.; Shaker, Ahmed

doi:10.1016/j.optmat.2021.111501

Cited by 12 publications

(12 citation statements)

References 12 publications

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“…Firstly, a qualitative analysis explaining the objective of using the flipped npn structure is presented. Figure 1 shows the proposed flipped npn structure in comparison with the conventional npn microstructure [22]. The main objective of flipping the npn solar cell microstructure (Figure 1a) was to eliminate the effect of shadowing on the structure performance as seen in the conventional structure (Figure 1b), in which the emitter contact produces shadowing.…”

Section: Key Design Parameters Of the Proposed Flipped Npn Microstruc...mentioning

confidence: 99%

“…Consequently, it was qualitatively expected that the optical performance of the flipped structure would be better than that of the conventional npn microstructure. In this study, the proposed flipped npn solar cell microstructure has the same design parameters as the conventional npn structure discussed in our previous work [22], except that the flipped structure has a buried emitter which minimizes the shadowing effect, as is depicted in Figure 1a. The emitter perimeter of the flipped solar cell is larger than that of the conventional solar cell.…”

Section: Key Design Parameters Of the Proposed Flipped Npn Microstruc...mentioning

confidence: 99%

“…These include concentration-dependent mobility (conmob), field-dependent mobility (fldmob), concentration-dependent Shockley-Read-Hall recombination (consrh), Auger recombination (auger) and band gap narrowing (bgn) models. The In this study, the proposed flipped npn solar cell microstructure has the same design parameters as the conventional npn structure discussed in our previous work [22], except that the flipped structure has a buried emitter which minimizes the shadowing effect, as is depicted in Figure 1a. The emitter perimeter of the flipped solar cell is larger than that of the conventional solar cell.…”

Section: Simulation Of the Proposed Flipped Npn Microstructure Using ...mentioning

confidence: 99%

“…The n+ layer thickness is t n+ , which is fixed at 0.1 µm by adjusting the diffusion process through the process simulator. The criteria for choosing such design parameters values were thoroughly argued in our previous work [19,22,23].…”

Section: Simulation Of the Proposed Flipped Npn Microstructure Using ...mentioning

confidence: 99%

“…Recently, a proposed npn microstructure SC, which was based on a heavily doped Si wafer as a base material, demonstrated an initial efficiency of 10.7% [21]. After the optimization of its technological parameters, it provided about 14.5% efficiency [22].…”

Section: Introductionmentioning

confidence: 99%

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Performance Investigation of a Proposed Flipped npn Microstructure Silicon Solar Cell Using TCAD Simulation

et al. 2022

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This work aims at inspecting the device operation and performance of a novel flipped npn microstructure solar cell based on low-cost heavily doped silicon wafers. The flipped structure was designed to eliminate the shadowing effect as applied in the conventional silicon-based interdigitated back-contact cell (IBC). Due to the disappearance of the shadowing impact, the optical performance and short-circuit current density of the structure have been improved. Accordingly, the cell power conversion efficiency (PCE) has been improved in comparison to the conventional npn solar cell microstructure. A detailed analysis of the flipped npn structure was carried out in which we performed TCAD simulations for the electrical and optical performance of the flipped cell. Additionally, a comparison between the presented flipped microstructure and the conventional npn solar cell was accomplished. The PCE of the conventional npn structure was found to be 14.5%, while it was about 15% for the flipped structure when using the same cell physical parameters. Furthermore, the surface recombination velocity and base bulk lifetime, which are the most important recombination parameters, were studied to investigate their influence on the flipped microstructure performance. An efficiency of up to 16% could be reached when some design parameters were properly fine-tuned. Moreover, the impact of the different physical models on the performance of the proposed cell was studied, and it was revealed that band gap narrowing effect was the most significant factor limiting the open-circuit voltage. All the simulations accomplished in this analysis were carried out using the SILVACO TCAD process and device simulators.

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Section: Key Design Parameters Of the Proposed Flipped Npn Microstruc...mentioning

confidence: 99%

Section: Key Design Parameters Of the Proposed Flipped Npn Microstruc...mentioning

confidence: 99%

Section: Simulation Of the Proposed Flipped Npn Microstructure Using ...mentioning

confidence: 99%

Section: Simulation Of the Proposed Flipped Npn Microstructure Using ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Investigation of a Proposed Flipped npn Microstructure Silicon Solar Cell Using TCAD Simulation

et al. 2022

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Numerical study of flexible perovskite/Si tandem solar cell using TCAD simulation

Alanazi,

Eid,

Okil

2023

Opt Quant Electron

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Proposal and design of organic/CIGS tandem solar cell: Unveiling optoelectronic approaches for enhanced photovoltaic performance

Zein,

Alanazi,

Saeed

et al. 2024

Optik

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Influence of base doping level on the npn microstructure solar cell performance: A TCAD study

Cited by 12 publications

References 12 publications

Performance Investigation of a Proposed Flipped npn Microstructure Silicon Solar Cell Using TCAD Simulation

Performance Investigation of a Proposed Flipped npn Microstructure Silicon Solar Cell Using TCAD Simulation

Numerical study of flexible perovskite/Si tandem solar cell using TCAD simulation

Proposal and design of organic/CIGS tandem solar cell: Unveiling optoelectronic approaches for enhanced photovoltaic performance

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