Astuti, B. and Rusli, N. I. and Hashim, Abdul Manaf and Othaman, Z. and Nafarizal, N. and Al Obaidi, Nihad K. Ali and Mat Safri, Norlaili (2011) Morphological and optical characteristics of porous silicon structure formed by electrochemical etching. In: AIP Conference Proceedings. American Institute of Physics, Maryland, pp. 119-122. ISBN 978-073540903-3
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Official URL: http://dx.doi.org/10.1063/1.3586967
Abstract
Porous silicon (PS) structures are prepared by electrochemical etching method using HF and ethanol as a electrolyte solution. The surface and cross-sectional morphology and optical characteristics of the formed PS structures as a dependence of the anodization time are studied. Although the anodization time is changed from 1 minute to 5 minutes in a sequence of 1 minute, the chemical reaction in the prepared solution is fast enough to create pores with remarkable changes in diameter and depth. It suggests that the anodization time of 5 minutes may produce PS structures with smaller grain size compared to the other samples and supports a blue shift of emission peak. The occurrence of blue shift may due to the quantum confinement effect.
| Item Type: | Book Section |
|---|---|
| Uncontrolled Keywords: | anodization time, morphology, photoluminescence spectra, porous silicon |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Electrical Engineering |
| ID Code: | 29471 |
| Deposited By: | Liza Porijo |
| Deposited On: | 12 Mar 2013 04:31 |
| Last Modified: | 04 Feb 2017 07:24 |
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