Surface modification via wet chemical etching of single-crystalline silicon for photovoltaic application

A. H. Reshak, M. M. Shahimin, S. Shaari, N. Johan

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The potential of solar cells have not been fully tapped due to the lack of energy conversion efficiency. There are three important mechanisms in producing high efficiency cells to harvest solar energy; reduction of light reflectance, enhancement of light trapping in the cell and increment of light absorption. The current work represent studies conducted in surface modification of single-crystalline silicon solar cells using wet chemical etching techniques. Two etching types are applied; alkaline etching (KOH:IPA:DI) and acidic etching (HF:HNO3:DI). The alkaline solution resulted in anisotropic profile that leads to the formation of inverted pyramids. While acidic solution formed circular craters along the front surface of silicon wafer. This surface modification will leads to the reduction of light reflectance via texturizing the surface and thereby increases the short circuit current and conversion rate of the solar cells.

Original languageEnglish
Pages (from-to)327-332
Number of pages6
JournalProgress in Biophysics and Molecular Biology
Volume113
Issue number2
DOIs
Publication statusPublished - Nov 2013
Externally publishedYes

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Silicon
Light
Solar Energy

Keywords

  • Acidic etching
  • Alkaline etching
  • Efficiency
  • Silicon solar cell
  • Surface texturization

ASJC Scopus subject areas

  • Molecular Biology
  • Biophysics

Cite this

Surface modification via wet chemical etching of single-crystalline silicon for photovoltaic application. / Reshak, A. H.; Shahimin, M. M.; Shaari, S.; Johan, N.

In: Progress in Biophysics and Molecular Biology, Vol. 113, No. 2, 11.2013, p. 327-332.

Research output: Contribution to journalArticle

Reshak, A. H. ; Shahimin, M. M. ; Shaari, S. ; Johan, N. / Surface modification via wet chemical etching of single-crystalline silicon for photovoltaic application. In: Progress in Biophysics and Molecular Biology. 2013 ; Vol. 113, No. 2. pp. 327-332.
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