Issue 50, 2015

Optically-transparent and electrically-conductive AgI–AgPO3–WO3 glass fibers

Abstract

In this study, we report to our knowledge the first optically-transparent and electrically-conductive optical glass fiber belonging to the system AgI–AgPO3–WO3. The addition of tungsten oxide (WO3) into the phosphate glassy network allowed the adjustment of the glass transition temperature, thermal expansion coefficient, refractive index, optical band edge, and electrical conductivity, which are all very important parameters in view of drawing glass fibers with a desired set of electrical and optical properties. Furthermore, the addition of WO3 can improve considerably glass stability against water and humidity in the environment. AgI–AgPO3–WO3 glass fibers with 15 mol% WO3 showed 2 dB m−1 optical propagation loss from 800 to 950 nm wavelength range, and 10−3 S cm−1 electrical conductivity at 1 MHz AC frequency. Complex impedance spectra and thermal activation energies ranging from 0.15 to 0.30 eV are indicative of a dominant conductivity mechanism being ionic in nature within the range of AC frequencies from 1 Hz to 1 MHz. Fibers exhibited higher electrical conductivities than the bulk glasses. Glasses in the AgI–AgPO3–WO3 system can be used for fibers that require a set of adjustable properties pertaining to electrical conductivity, optical transparency, and environmental stability.

Graphical abstract: Optically-transparent and electrically-conductive AgI–AgPO3–WO3 glass fibers

Supplementary files

Article information

Article type
Paper
Submitted
14 Jan 2015
Accepted
20 Apr 2015
First published
20 Apr 2015

RSC Adv., 2015,5, 40236-40248

Optically-transparent and electrically-conductive AgI–AgPO3–WO3 glass fibers

M. Rioux, Y. Ledemi, J. Viens, S. Morency, S. A. Ghaffari and Y. Messaddeq, RSC Adv., 2015, 5, 40236 DOI: 10.1039/C5RA00681C

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