Highly Responsive UV Light Sensors Using Mg-Doped ZnO Nanoparticles

Author:

Alam Mirza Shirjeel1,Manzoor Umair12,Mujahid Mohammad3,Bhatti Arshad S.1

Affiliation:

1. Center for Micro and Nano Devices (CMND), Department of Physics, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan

2. Alamoudi Water Research Chair, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia

3. School of Chemical & Materials Engineering (SCME), National University of Sciences & Technology (NUST), Sector H-12, Islamabad 44000, Pakistan

Abstract

Different concentrations of Mg-doped ZnO nanoparticles (NPs) were synthesized by coprecipitation technique at 60°C. XRD data are used to study phase purity and crystal structure in different doping concentrations. The results indicated that increasing the doping from 0~7.5 wt.% caused a subsequent increase in FWHM in XRD and an associated systematic shift towards higher wavelength in the optical properties. Finally, the sensing of UV light is tested by observing the response of nanoparticles by exposing them to UV light and measuring the resistance in presence and absence of UV light.

Funder

King Abdulaziz City for Science and Technology

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Instrumentation,Control and Systems Engineering

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