Universiti Teknologi Malaysia Institutional Repository

Modification of structural and physical properties of samarium doped zinc phosphate glasses due to the inclusion of nickel oxide nanoparticles

M. Azmi, Siti Amlah and Sahar, Md. Rahim and Ghoshal, Sib Krishna and Arifin, Ramli (2015) Modification of structural and physical properties of samarium doped zinc phosphate glasses due to the inclusion of nickel oxide nanoparticles. Journal Of Non-Crystalline Solids, 411 . pp. 53-58. ISSN 0022-3093

Full text not available from this repository.

Official URL: hrrp://dx.doi.org/10.1016/j.jnoncrysol.2014.12.024

Abstract

A series of nickel oxide (NiO) nanoparticles (NPs) embedded samarium (Sm3+) doped zinc phosphate glass of the form (58 - x) P2O5-40ZnO-1Sm2O3-xNiO, with x = 0.0, 0.5, 1.0, 1.5 and 2.0 mol% are synthesized via melt quenching technique and the influence of NPs (at fixed concentration of Sm3+) on their overall behaviors are examined. XRD pattern verifies the amorphous nature of prepared glass samples. TEM images reveal the existence of NiO NPs with average size ~8 ± 1 nm. Physical properties such as glass density (2.8 ± 0.1 -3.0 ± 0.1 g cm-3), molar volume (42.2 ± 0.1-40.6 ± 0.1 cm3 mol-1) and hardness (173.2 ± 0.1-465.1 ± 0.1 Hv) are all found to increasewith the increase of NPs concentrations. The absorption spectra exhibit surface plasmon resonance (SPR) peak of NiO centered at 433 nm. The vibrational modes are obtained using Fourier transforminfrared (FTIR) and Raman analyses. Four major IR absorption bands centered at 723, 916, 1081 and 1280 cm-1 are evidenced. Raman spectra display two significant peaks at 708 and 1201 cm-1 attributed to the symmetric and asymmetric stretching vibrations of P-O-P bridging oxygen in Q1 units and non-bridging oxygen (NBO) in Q2 units respectively. NPs assisted alteration in structural and physical properties are majorly attributed to the strong local field effect in the proximity of rare earth ion, generation of NBO ions and energy transfer. Our observation may contribute towards the development of NPs embedded rare earth doped glass photonics.

Item Type:Article
Uncontrolled Keywords:FTIR, nickel oxide nanoparticles, phosphate, raman, samarium
Subjects:A General Works
ID Code:58590
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:01 Mar 2017 11:48

Repository Staff Only: item control page