The Photoluminescence Enhancement and Stability of Porous Silicon by Cathodic Reduction and Acid Treatment

Chang Qing Li; Kun Wang; Pei Jia Liu; Qi Ming

doi:10.4028/www.scientific.net/AMR.887-888.458

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 887-888The Photoluminescence Enhancement and Stability of...

The Photoluminescence Enhancement and Stability of Porous Silicon by Cathodic Reduction and Acid Treatment

Abstract:

Porous silicon (PSi) was fabricated by using electrochemical anodic etching method. Then acid treatment and cathode reduction treatment were employed to improve the luminescence properties and stability of PSi material. Photoluminescence (PL) measurements and scanning electron microscope (SEM) were used to observe the luminescence properties and microstructure of samples, respectively. The results of PL measurements showed that the PL intensity and the stability of luminescence of samples after cathodic reduction and acid treatment were significantly improved. The SEM images showed that the porosity of PSi may be increased through the cathodic reduction treated.

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Advanced Materials Research (Volumes 887-888)

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458-461

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.887-888.458

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Online since:

February 2014

Authors:

Chang Qing Li*, Kun Wang, Pei Jia Liu, Qi Ming

Keywords:

Cathodic Reduction, Photoluminescence (PL), Porous Silicon, Scanning Electron Microscopy (SEM)

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