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Tailoring spectroscopic properties of Er3+ doped zinc sodium tellurite glass via gold nanoparticles

Awang, Asmahani and Ghoshal, Sib Krishna and Sahar, Md. Rahim and Arifin, Ramli (2015) Tailoring spectroscopic properties of Er3+ doped zinc sodium tellurite glass via gold nanoparticles. In: 3rd International Science Postgraduate Conference 2015 (ISPC 2015), 24-26 Feb, 2015, Skudai, Johor.

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Tailoring the spectroscopic properties of rare earth (RE) doped inorganic glasses mediated via surface plasmon resonance (SPR) by embedding metallic nanoparticles (NPs) with controlled concentration is prerequisite for photonic applications. Erbium (Er3+) doped tellurite glasses containing gold (Au) NPs are prepared and systematic characterizations are made to inspect the impacts of Au NPs of spectral features for desired tailoring. X-ray diffraction pattern confirm the amorphous nature of the glass samples and EDX analysis detects elemental traces. The UV-Vis spectra exhibit six absorption bands centered at 488, 523, 655, 800, 973 and 1533 nm corresponding to 4f-4f transitions of Er3+ions. Glass sample containing 0.4 mol% Au (without Er2O3) reveals Au plasmon band at around 629 nm. The EDX spectra display elemental traces of Te, Er, Zn, Na and Au. Glass sample containing 0.2 mol% Au demonstrates maximum enhancement in the emission band intensity by a factor of 20.23 (orange), 18.35 (strong green), 16.80 (moderate green) and 15.46 (blue). The enhancement is attributed to the Au NPs assisted SPR effect. The beneficial features of proposed glasses nominate them as potential candidate for photonic devices and solid state lasers.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:embedding metallic nanoparticles (NPs)
Subjects:Q Science > QC Physics
ID Code:60589
Deposited By: Fazli Masari
Deposited On:21 Feb 2017 07:33
Last Modified:06 Aug 2017 06:29

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