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Title: Quantum confinement effect in cheese like silicon nano structure fabricated by metal induced etching

Quantum confinement effect has been studied in cheese like silicon nano-structures (Ch-SiNS) fabricated by metal induced chemical etching using different etching times. Scanning electron microscopy is used for the morphological study of these Ch-SiNS. A visible photoluminescence (PL) emission is observed from the samples under UV excitation at room temperature due to quantum confinement effect. The average size of Silicon Nanostructures (SiNS) present in the samples has been estimated by bond polarizability model using Raman Spectroscopy from the red-shift observed from SiNSs as compared to its bulk counterpart. The sizes of SiNS present in the samples decreases as etching time increase from 45 to 75 mintunes.
Authors:
; ; ;  [1]
  1. Material Research Laboratory, Discipline of Physics & MSEG, Indian Institute of Technology Indore, Madhya Pradesh-452017 (India)
Publication Date:
OSTI Identifier:
22488840
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPARATIVE EVALUATIONS; CONFINEMENT; ETCHING; EXCITATION; METALS; NANOSTRUCTURES; PHOTOLUMINESCENCE; POLARIZABILITY; RAMAN SPECTROSCOPY; RED SHIFT; SCANNING ELECTRON MICROSCOPY; SILICON; TEMPERATURE RANGE 0273-0400 K