Electrical performance of efficient quad-crescent-shaped Si nanowire solar cell Article Swipe
R. El-Bashar
,
Mohamed Hussein
,
Salem F. Hegazy
,
Yehia Badr
,
B. M. A. Rahman
,
K. T. V. Grattan
,
Mohamed Farhat O. Hameed
,
S. S. A. Obayya
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1038/s41598-021-03597-x
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1038/s41598-021-03597-x
The electrical characteristics of quad-crescent-shaped silicon nanowire (NW) solar cells (SCs) are numerically analyzed and as a result their performance optimized. The structure discussed consists of four crescents, forming a cavity that permits multiple light scattering with high trapping between the NWs. Additionally, new modes strongly coupled to the incident light are generated along the NWs. As a result, the optical absorption has been increased over a large portion of light wavelengths and hence the power conversion efficiency (PCE) has been improved. The electron–hole (e–h) generation rate in the design reported has been calculated using the 3D finite difference time domain method. Further, the electrical performance of the SC reported has been investigated through the finite element method, using the Lumerical charge software package. In this investigation, the axial and core–shell junctions were analyzed looking at the reported crescent and, as well, conventional NW designs. Additionally, the doping concentration and NW-junction position were studied in this design proposed, as well as the carrier-recombination-and-lifetime effects. This study has revealed that the high back surface field layer used improves the conversion efficiency by $$\sim$$ 80%. Moreover, conserving the NW radial shell as a low thickness layer can efficiently reduce the NW sidewall recombination effect. The PCE and short circuit current were determined to be equal to 18.5% and 33.8 mA $$/\hbox {cm}^2$$ for the axial junction proposed. However, the core–shell junction shows figures of 19% and 34.9 mA $$/\hbox {cm}^2$$ . The suggested crescent design offers an enhancement of 23% compared to the conventional NW, for both junctions. For a practical surface recombination velocity of $$10^{2}$$ cm/s, the PCE of the proposed design, in the axial junction, has been reduced to 16.6%, with a reduction of 11%. However, the core–shell junction achieves PCE of 18.7%, with a slight reduction of 1.6%. Therefore, the optoelectronic performance of the core–shell junction was marginally affected by the NW surface recombination, compared to the axial junction.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1038/s41598-021-03597-x
- https://www.nature.com/articles/s41598-021-03597-x.pdf
- OA Status
- gold
- Cited By
- 18
- References
- 66
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4206188035
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4206188035Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1038/s41598-021-03597-xDigital Object Identifier
- Title
-
Electrical performance of efficient quad-crescent-shaped Si nanowire solar cellWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2022Year of publication
- Publication date
-
2022-01-07Full publication date if available
- Authors
-
R. El-Bashar, Mohamed Hussein, Salem F. Hegazy, Yehia Badr, B. M. A. Rahman, K. T. V. Grattan, Mohamed Farhat O. Hameed, S. S. A. ObayyaList of authors in order
- Landing page
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https://doi.org/10.1038/s41598-021-03597-xPublisher landing page
- PDF URL
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https://www.nature.com/articles/s41598-021-03597-x.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.nature.com/articles/s41598-021-03597-x.pdfDirect OA link when available
- Concepts
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Nanowire, Materials science, Energy conversion efficiency, Optoelectronics, Silicon, DopingTop concepts (fields/topics) attached by OpenAlex
- Cited by
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18Total citation count in OpenAlex
- Citations by year (recent)
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2025: 2, 2024: 7, 2023: 4, 2022: 5Per-year citation counts (last 5 years)
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66Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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