Peculiarities of Photoluminescence in Porous Silicon Prepared by Metal-Assisted Chemical Etching
Joint Authors
Smyntyna, Valentin
Sviridova, Olga
Pavlenko, Nykolai
Iatsunskyi, Igor
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-01
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Photoluminescent (PL) porous layers were formed on p-type silicon by a metal-assisted chemical etching method using H2O2 as an oxidizing agent.
Silver particles were deposited on the (100) Si surface prior to immersion in a solution of HF and H2O2.
The morphology of the porous silicon (PS) layer formed by this method was investigated by atomic force microscopy (AFM).
Depending on the metal-assisted chemical etching conditions, the macro- or microporous structures could be formed.
Luminescence from metal-assisted chemically etched layers was measured.
It was found that the PL intensity increases with increasing etching time.
This behaviour is attributed to increase of the density of the silicon nanostructure.
It was found the shift of PL peak to a green region with increasing of deposition time can be attributed to the change in porous morphology.
Finally, the PL spectra of samples formed by high concentrated solution of AgNO3 showed two narrow peaks of emission at 520 and 550 nm.
These peaks can be attributed to formation of AgF and AgF2 on a silicon surface.
American Psychological Association (APA)
Iatsunskyi, Igor& Smyntyna, Valentin& Pavlenko, Nykolai& Sviridova, Olga. 2012. Peculiarities of Photoluminescence in Porous Silicon Prepared by Metal-Assisted Chemical Etching. ISRN Optics،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-511441
Modern Language Association (MLA)
Iatsunskyi, Igor…[et al.]. Peculiarities of Photoluminescence in Porous Silicon Prepared by Metal-Assisted Chemical Etching. ISRN Optics No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-511441
American Medical Association (AMA)
Iatsunskyi, Igor& Smyntyna, Valentin& Pavlenko, Nykolai& Sviridova, Olga. Peculiarities of Photoluminescence in Porous Silicon Prepared by Metal-Assisted Chemical Etching. ISRN Optics. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-511441
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511441