Amorphous silicon single-junction thin-film solar cell exceeding 10 % efficiency by design optimization

Mohammed Ikbal Kabir, Seyed A. Shahahmadi, Victor Lim, Saleem H. Zaidi, Kamaruzzaman Sopian, Nowshad Amin

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The conversion efficiency of a solar cell can substantially be increased by improved material properties and associated designs. At first, this study has adopted AMPS-1D (analysis of microelectronic and photonic structures) simulation technique to design and optimize the cell parameters prior to fabrication, where the optimum design parameters can be validated. Solar cells of single junction based on hydrogenated amorphous silicon (a-Si:H) have been analyzed by using AMPS-1D simulator. The investigation has been made based on important model parameters such as thickness, doping concentrations, bandgap, and operating temperature and so forth. The efficiency of single junction a-Si:H can be achieved as high as over 19% after parametric optimization in the simulation, which might seem unrealistic with presently available technologies. Therefore, the numerically designed and optimized a-SiC:H/a-SiC:H-buffer/a-Si:H/ a-Si:H solar cells have been fabricated by using PECVD (plasma-enhanced chemical vapor deposition), where the best initial conversion efficiency of 10.02% has been achieved (V o c = 0.88 V, J sc = 15.57 mA/cm2 and FF = 0.73) for a small area cell (0.086 cm2). The quantum efficiency (QE) characteristic shows the cell's better spectral response in the wavelength range of 400 nm-650 nm, which proves it to be a potential candidate as the middle cell in a-Si-based multijunction structures.

Original languageEnglish
Article number460919
JournalInternational Journal of Photoenergy
Volume2012
DOIs
Publication statusPublished - 2012

Fingerprint

design optimization
Amorphous silicon
amorphous silicon
Solar cells
AMPS (satellite payload)
solar cells
Conversion efficiency
thin films
cells
Plasma enhanced chemical vapor deposition
Quantum efficiency
Microelectronics
Photonics
Materials properties
Buffers
Energy gap
Simulators
operating temperature
spectral sensitivity
Doping (additives)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

Amorphous silicon single-junction thin-film solar cell exceeding 10 % efficiency by design optimization. / Kabir, Mohammed Ikbal; Shahahmadi, Seyed A.; Lim, Victor; Zaidi, Saleem H.; Sopian, Kamaruzzaman; Amin, Nowshad.

In: International Journal of Photoenergy, Vol. 2012, 460919, 2012.

Research output: Contribution to journalArticle

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