Impact Analysis of Metallization Design and Recombination Losses on Performance of Crystalline Silicon Solar Cells

Nowshad Amin (), Sathiswary Santhiran, Nabilah Mat Kassim, Ammar Ahmed Alkahtani, Mohammad Aminul Islam () and Mohd Yusrizal Mohd Yusof
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Nowshad Amin: Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional (@UNITEN, The National Energy University), Kajang 43000, Selangor, Malaysia
Sathiswary Santhiran: Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional (@UNITEN, The National Energy University), Kajang 43000, Selangor, Malaysia
Nabilah Mat Kassim: Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional (@UNITEN, The National Energy University), Kajang 43000, Selangor, Malaysia
Ammar Ahmed Alkahtani: Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional (@UNITEN, The National Energy University), Kajang 43000, Selangor, Malaysia
Mohammad Aminul Islam: Department of Electrical Engineering, Faculty of Engineering, Universiti Malaya, Jalan University, Kuala Lumpur 50603, Selangor, Malaysia
Mohd Yusrizal Mohd Yusof: TNB Renewables Sdn. Bhd. (TRe), 16A Persiaran Barat, Petaling Jaya 46050, Selangor, Malaysia

Energies, 2023, vol. 16, issue 18, 1-10

Abstract: Using Griddler software, this study aims to select the optimal metallization design by analyzing the impact of the number and sizes of busbars and fingers on a solar cell’s performance. There is interest in the PV industry to reduce the finger size toward 25 μm in upcoming years. It is shown that an increase in the number and size of busbars and fingers causes an increase in the fill factor; however, with regards to the cell’s efficiency, the shading factor should be considered in addition to the size and number of metal contacts. The results of this study indicate that solar cells’ efficiency could be increased by 0.33–0.84% when using five busbars and a finger width of 35 μm. Moreover, this increase is achieved by reducing the emitter resistance to less than 60 ohm/sq and considering a recombination rate of about 165 fA/cm 2 .

Keywords: metallization; energy; Griddler; solar cells; recombination; performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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