Effect of structural variations in amorphous silicon based single and multi-junction solar cells from numerical analysis

M. I. Kabir, Zahari Ibarahim, Kamaruzzaman Sopian, Nowshad Amin

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21 Citations (Scopus)

Abstract

In this paper, single and multi-junction solar cells based on hydrogenated amorphous silicon (a-Si:H) and its alloy amorphous silicon carbide (a-SiC:H) are analyzed using one dimensional simulator AMPS-1D (Analysis of Microelectronic and Photonic Structures). Effects of thickness and doping concentration of different layers as well as the operating temperature on cell efficiency have been investigated with a view to find a more efficient and stable cell. For the single junction cell, the maximum efficiency of 19.62% has been achieved for a thickness of 500 nm of i-layer, which further improved to 20.8% after the optimization of the doping concentration. In case of double junction cell, the highest efficiency of 20.19% was found for top i-layer thickness of 700 nm after optimizing the bottom cell parameters. For the triple junction cell, parameters of the bottom cell and middle cell were optimized and the maximum efficiency of 21.89% was found with the top i-layer thickness of 600 nm. As regards the operating temperature, the double junction and the triple junction tandem cells showed better stability, with temperature gradient of 0.17% and 0.18%/C, respectively, than the single junction cell of 0.23%/C. The overall investigation on amorphous silicon solar cells as done here gives potential parametric suggestion that may lead to the fabrication of the high efficiency and stabilized a-Si thin film solar cells.

Original languageEnglish
Pages (from-to)1542-1545
Number of pages4
JournalSolar Energy Materials and Solar Cells
Volume94
Issue number9
DOIs
Publication statusPublished - Sep 2010

Fingerprint

Amorphous silicon
Numerical analysis
Doping (additives)
Silicon solar cells
Silicon carbide
Microelectronics
Thermal gradients
Photonics
Simulators
Multi-junction solar cells
Fabrication
Temperature

Keywords

  • a-Si:H
  • a-SiC:H
  • Amorphous silicon
  • AMPS-1D
  • Double junction
  • Single junction
  • Temperature gradient
  • Triple junction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

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title = "Effect of structural variations in amorphous silicon based single and multi-junction solar cells from numerical analysis",
abstract = "In this paper, single and multi-junction solar cells based on hydrogenated amorphous silicon (a-Si:H) and its alloy amorphous silicon carbide (a-SiC:H) are analyzed using one dimensional simulator AMPS-1D (Analysis of Microelectronic and Photonic Structures). Effects of thickness and doping concentration of different layers as well as the operating temperature on cell efficiency have been investigated with a view to find a more efficient and stable cell. For the single junction cell, the maximum efficiency of 19.62{\%} has been achieved for a thickness of 500 nm of i-layer, which further improved to 20.8{\%} after the optimization of the doping concentration. In case of double junction cell, the highest efficiency of 20.19{\%} was found for top i-layer thickness of 700 nm after optimizing the bottom cell parameters. For the triple junction cell, parameters of the bottom cell and middle cell were optimized and the maximum efficiency of 21.89{\%} was found with the top i-layer thickness of 600 nm. As regards the operating temperature, the double junction and the triple junction tandem cells showed better stability, with temperature gradient of 0.17{\%} and 0.18{\%}/C, respectively, than the single junction cell of 0.23{\%}/C. The overall investigation on amorphous silicon solar cells as done here gives potential parametric suggestion that may lead to the fabrication of the high efficiency and stabilized a-Si thin film solar cells.",
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AU - Amin, Nowshad

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AB - In this paper, single and multi-junction solar cells based on hydrogenated amorphous silicon (a-Si:H) and its alloy amorphous silicon carbide (a-SiC:H) are analyzed using one dimensional simulator AMPS-1D (Analysis of Microelectronic and Photonic Structures). Effects of thickness and doping concentration of different layers as well as the operating temperature on cell efficiency have been investigated with a view to find a more efficient and stable cell. For the single junction cell, the maximum efficiency of 19.62% has been achieved for a thickness of 500 nm of i-layer, which further improved to 20.8% after the optimization of the doping concentration. In case of double junction cell, the highest efficiency of 20.19% was found for top i-layer thickness of 700 nm after optimizing the bottom cell parameters. For the triple junction cell, parameters of the bottom cell and middle cell were optimized and the maximum efficiency of 21.89% was found with the top i-layer thickness of 600 nm. As regards the operating temperature, the double junction and the triple junction tandem cells showed better stability, with temperature gradient of 0.17% and 0.18%/C, respectively, than the single junction cell of 0.23%/C. The overall investigation on amorphous silicon solar cells as done here gives potential parametric suggestion that may lead to the fabrication of the high efficiency and stabilized a-Si thin film solar cells.

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