alexa Metal Assisted Synthesis of Single Crystalline Silicon Nanowires at Room Temperature for Photovoltaic Application
ISSN: 2157-7439

Journal of Nanomedicine & Nanotechnology
Open Access

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Research Article

Metal Assisted Synthesis of Single Crystalline Silicon Nanowires at Room Temperature for Photovoltaic Application

Md Asgar A1, Hasan M2, Md Huq F3* and Zahid H Mahmood4

1Department of Electronics and Communication Engineering, Jatiya Kabi Kazi Nazrul Islam University, Trishal, Mymensingh, Bangladesh

2Department of Electrical and Electronic Engineering, Shahjalal University of Science and Technology, Kumargaon, Sylhet-3114, Bangladesh

3Department of Nuclear Engineering, University of Dhaka, Dhaka 1000, Bangladesh

4Department of Applied Physics Electronics and Communication Engineering, University of Dhaka, Dhaka-1000, Bangladesh

*Corresponding Author:
Md Huq F
Department of Nuclear Engineering
University of Dhaka, Dhaka 1000, Bangladesh
Tel: 8801913377384
E-mail: [email protected]

Received Date: April 26, 2014; Accepted Date: August 20, 2014; Published Date: August 27, 2014

Citation: Md Asgar A, Hasan M, Md Huq F, Mahmood ZH (2014) Metal Assisted Synthesis of Single Crystalline Silicon Nanowires at Room Temperature for Photovoltaic Application. J Nanomed Nanotechnol 5:221. doi:10.4172/2157-7439.1000221

Copyright: © 2014 Md Asgar A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Synthesis of single crystalline silicon nanowires (SiNWs) array at room temperature by metal assisted chemical etching and its optical absorption measurements have been reported in this article. It has been confirmed that, SiNWs were formed uniformly on p-type silicon substrate by electroless deposition of Cu and Ag nanoparticles followed by wet chemical etching in (Hydrogen Fluoride) HF based Fe(NO3)3 solution. Synthesized SiNW structures were analyzed and investigated by Scanning Electron Microscopy (SEM) and Ultraviolet-Visible (UV-VIS) spectrophotometer. Formation of SiNWs is evident from the SEM images and morphology of the structures depends upon the concentration of chemical solution and etching time. The synthesized SiNWs have shown strong broadband optical absorption exhibited from UVspectroscopy. More than 82% absorption of incident radiation is found for Cu treated samples and a maximum of 83% absorption of incident radiation is measured for Ag synthesized samples which is considerably enhanced than that of silicon substrate as they absorbed maximum of 43% of incoming radiation only.

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