Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Vanadium on Structural and Optical Properties of Borate Glasses Containing Er3+ and Silver Nanoparticles

Version 1 : Received: 8 March 2021 / Approved: 9 March 2021 / Online: 9 March 2021 (10:48:59 CET)

How to cite: Zaini, N.A.; Mohamed, S.N.; Mohamed, Z. Effect of Vanadium on Structural and Optical Properties of Borate Glasses Containing Er3+ and Silver Nanoparticles. Preprints 2021, 2021030259 (doi: 10.20944/preprints202103.0259.v1). Zaini, N.A.; Mohamed, S.N.; Mohamed, Z. Effect of Vanadium on Structural and Optical Properties of Borate Glasses Containing Er3+ and Silver Nanoparticles. Preprints 2021, 2021030259 (doi: 10.20944/preprints202103.0259.v1).

Abstract

Glass samples (59.5 – x) B2O3 – 20Na2O – 20CaO – xV2O5 – Er2O3 – 0.5AgCl (x = 0 – 2.5 mol%) were prepared using melt – quenching method to investigate the structural and optical properties of the glass. The structural of the glass were characterized by using XRD, TEM and FTIR, meanwhile the optical properties were characterized by UV – VIS absorption. The XRD patterns confirmed the amorphous nature of the prepared glass samples. FTIR confirmed the presence of VO4, VO5, BO3, and BO4 vibration, and this result showed NBO increased with increasing vanadium concentration. The UV – Vis – NIR spectra exhibits six absorption band centered at 490, 520, 540, 660, 800, and 980 nm. The optical band gap (Eopt), Urbach energy and refractive index shown decrease, increase and increase, respectively. The Judd – Ofelt intensity parameter reveal the trends was Ω2 > Ω4 > Ω6. There are three emission bands at 516 nm, 580 nm, and 673 nm which are represented by 2H11/2 – 4I15/2, 4S3/2 – 4I15/2, and 4F15/2 – 4I15/2, respectively under 800 nm excitation was obtained.

Keywords

Borate glasses; silver nanoparticle; UV – VIS – NIR; Judd – Ofelt theory; Photoluminescence

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