Effect of Electrolyte Volume Ratio on Electroluminescence of Porous Silicon Nanostructures (PSiNs) Intensity

Abstract:

For this experiment, the main purpose of this experiment is to determine the electroluminescence of PSiNs samples with optimum electrolyte volume ratio of photo-electrochemical anodisation. PSiNs samples were prepared by photo-electrochemical anodisation by using p-type silicon substrate. For the formation of PSiNs on the silicon surface, a fixed current density (J=20 mA/cm2) and 30 minutes etching time were applied for the various electrolyte volume ratio. Volume ratio of hydrofluoric acid 48% (HF48%) and absolute ethanol (C2H5OH), HF48%:C2H5OH was used for sample A (3:1), sample B (2:1), sample C (1:1), sample D (1:2) and sample E (1:3). The light emission can be observed at visible range. The effective electroluminescence was observed for sample C. Porous silicon nanostructures light–emitting diode (PSiNs-LED) has high-potential device for future flat screen display and can be high in demand.

• Periodical: Advanced Materials Research (Volume 686)
• Pages: 49-55
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.686.49
• Online since: April 2013
• Authors: M. Ain Zubaidah, N.A. Asli, Mohamad Rusop, Saifollah Abdullah
• Keywords: Electroluminescence, Photoluminescence (PL), Porous Silicon Nanostructures

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