Quantum Confinement Effect in Cheese like Silicon Nano Structure Fabricated by Metal Induced Etching

被引：0
作者：
Saxena, Shailendra K. [1 ]
Sahu, Gayatri
Sagdeo, Pankaj R.
Kumar, Rajesh
机构：
[1] Indian Inst Technol Indore, Mat Res Lab, Discipline Phys, Indore 452017, Madhya Pradesh, India
来源：
ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2015) | 2015年 / 1675卷
关键词：
NANOCRYSTALS; SI;
D O I：
10.1063/1.4929247
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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.
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