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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 895Luminescence Spectra of Erbium Doped Zinc...

Luminescence Spectra of Erbium Doped Zinc Tellurite Glass Embedded with Gold Nanoparticles

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Abstract:

Understanding the mechanism of visible luminescence enhancement from rare earth doped glasses containing metallic nanoparticles (NPs) is the challenging issue. The photoluminescence (PL) spectra of Er³⁺: Au-doped tellurite glass is investigated for different concentration of gold NPs. A series of glasses with composition (70-x) TeO₂-30 ZnO-0.5 Er₂O₃ x Au where x = (0.1, 0.3, 0.5 mol%) are prepared by melt-quenching method. The thermal parameters such as the glass transition (T_g), crystallization temperature (T_c) and melting temperature (T_m) are determined using DTA thermogram. PL spectra exhibit two distinct peaks at 493nm and 550nm which are assigned to the ²H_11/2-⁴I_15/2and ⁴S_3/2-⁴I_15/2 transition respectively. The influence of gold NPs in enhancing the luminescence intensity under the 360nm excitation wavelength is observed understood.

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Solid State Science and Technology IV

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Periodical:

Advanced Materials Research (Volume 895)

Pages:

231-235

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.895.231

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Online since:

February 2014

Authors:

Md Rahim Sahar*, E. Jaafar, Sib Krishna Ghoshal

Keywords:

Energy Transfer, Nanoparticle, Photoluminescence (PL), Plasmon, Tellurite Glass

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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