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Modified multimode polimer optical nanofiber for volatile organic compound sensing in room temperature

F. ABDURRAHMAN1,2, N. ARSAD1,* , A. ASHRIF1, A. BAKAR1, GAN KOK BENG1, S. SHAARI2

Affiliation

  1. Department of Electrical, Electronic and System Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan, Malaysia
  2. STKIPBina Bangsa GETSEMPENA. Aceh, Indonesia

Abstract

An intrinsic fiber-optic sensor to detect volatile organic compounds (VOCs) at room temperature is described. The sensor consists of a multimode fiber coated with a zinc oxide (ZnO) nanoparticle layer. The ZnO layer is deposited on the fiber surface after etching a portion of the fiber cladding to increase the evanescent interaction between the light and ZnO layer. Adsorption of VOCs on the ZnO layer changes its refractive index, resulting in a light intensity change. The interaction process of the light carried by the fiber with the VOCs is observed in absorption spectra. The sensor responds to methanol and acetone vapor concentration ranging from 5%-50%..

Keywords

Fiber intrinsic sensor, Chemical etching, Evanescent, Sensor probe.

Submitted at: Sept. 21, 2018
Accepted at: June 14, 2019

Citation

F. ABDURRAHMAN, N. ARSAD, A. ASHRIF, A. BAKAR, GAN KOK BENG, S. SHAARI, Modified multimode polimer optical nanofiber for volatile organic compound sensing in room temperature, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 5-6, pp. 313-319 (2019)