Optical Absorption of Erbium Doped Tellurite Glass

Siti  Ismail Fatimah; Md Rahim Sahar; Sib Krishna Ghoshal; R. Arifin; K. Hamzah

doi:10.4028/www.scientific.net/AMR.895.245

Paper Titles

Optical Properties of Zinc Oxide (ZnO) Thin Films Prepared by Spray Pyrolysis Method
p.226

Luminescence Spectra of Erbium Doped Zinc Tellurite Glass Embedded with Gold Nanoparticles
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Optical Absorption of Nd³⁺ Doped Tellurite Glass Containing Ag Nanoparticles
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Enhanced Luminescence from Erbium Doped Phosphate Glass Containing ZnO Nanoparticles
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Optical Absorption of Erbium Doped Tellurite Glass
p.245

Structural and Optical Properties of Nickel-Doped and Undoped Zinc Oxide Thin Films Deposited by Sol-Gel Method
p.250

Growth of Au Nanoparticles Stimulate Spectroscopic Properties of Er³⁺Doped TeO₂-ZnO-Na₂O Glasses
p.254

Luminescence Enhancement of Samarium-Doped Tellurite Glass Containing Silver Nanoparticles
p.260

Luminescence Properties of Transition Metal and Rare Earth Doped Cadmium Lead Borophosphate Glass
p.265

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 895Optical Absorption of Erbium Doped Tellurite Glass

Optical Absorption of Erbium Doped Tellurite Glass

Abstract:

Improving the optical behavior of tellurite glass with controlled rare earth doping is an important issue from device perspectives. The Er³⁺-doped tellurite glasses having composition (75-x)TeO₂-20ZnO-5Na₂O-xEr₂O₃ where (0 x 0.7) mol% are prepared by melt quenching technique and their structural and optical properties are investigated. Amorphous nature of the samples is confirmed through X-ray diffraction technique. The optical absorption recorded at room temperature in the wavelength range from 400 to 1000 nm exhibits five broad bands. The value of the optical band gap and the Urbach energy (ΔE) are calculated from the absorption edge data. The value of optical band gap lies between 2.18 eV and 2.89 eV for the indirect transition whereas the value of Urbach energy varies from 0.15 to 0.53 eV. The optical band gap and Urbach energy values are found to dependent strongly on the erbium concentration.

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Advanced Materials Research (Volume 895)

Pages:

245-249

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.895.245

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Online since:

February 2014

Authors:

Siti Ismail Fatimah, Md Rahim Sahar, Sib Krishna Ghoshal, R. Arifin, K. Hamzah

Keywords:

Erbium, Optical Property, Tellurite Glass, Urbach Energy

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