Document Type : Research article
Authors
Department of Electrical and Computer Engineering, Jundi-Shapur University of Technology, Dezful, Iran
Abstract
In this study, the effect of the width of the n- and p-strips and gap between the electrodes on output characteristics of the IBC-SHJ solar cell, including short-circuit current density, open-circuit voltage, fill factor, and efficiency, was investigated using Silvaco ATHENA and ATLAS simulation software. In this regard, the efficiency of the IBC-SHJ solar cell was improved by developing the geometry of the back contacts. The values for the short-circuit current density, open-circuit voltage, fill factor, and efficiency of the solar cell were analysed using physical phenomena and the distribution of the electric field and electric potential for the aforementioned parameters. The results have shown that the width of the n- and p-strips is one of the most effective parameters for improving the efficiency. Moreover, a maximum efficiency of 23.52% was achieved for IBC-SHJ with improved solar cell parameters, focusing on the elimination of additional ARCs and greater structural periodicity. Thus, a simple structure with no complexity in the fabrication process is proposed. The results show that the best width of the p-strip, n-strip, and gap between the electrodes is 400 μm, 80 μm, and 30 μm, respectively, to achieve improved efficiency.
Keywords
- Back contacts geometry engineering
- P-Strip width
- N-Strip width
- Gap width
- IBC-SHJ solar cell
- Cell efficiency
Main Subjects
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