Optical Absorption in Erbium Doped Phosphate Glass Embedded with Cobalt Nanoparticles

Adnan, Nur Aina Mardia; Sahar, Md Rahim; Rohani, Md Supar

doi:10.4028/www.scientific.net/AMR.1107.409

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HomeAdvanced Materials ResearchSOLID STATE SCIENCE & TECHNOLOGY Towards an...Optical Absorption in Erbium Doped Phosphate Glass...

Optical Absorption in Erbium Doped Phosphate Glass Embedded with Cobalt Nanoparticles

Abstract:

A series of Er³⁺ doped phosphate glass embedded with CoO nanoparticles (NPs) were synthesized from high purity raw materials by melt quenching and the influence of CoO NPs on the optical absorption were investigated. The glass has been characterized by means of TEM and UV-Vis Spectroscopy. Investigation on TEM image displays the existence of NPs where its distribution is Gaussian with the average size of 5.18 nm. Five absorbtion bands of erbium were evidenced in the UV-Vis measurement. For UV-Vis absorption peaks, the optical band gap energy, E_opt has been estimated in the range of 3.22 3.89 eV, increasing with the increasing of CoO content. Meanwhile, the urbach energy is found to be in the range of 0.98 0.74 eV decreasing with the CoO content. All the results will be discussed with respect to CoO content.

Info:

Periodical:

Advanced Materials Research (Volume 1107)

Main Theme:

SOLID STATE SCIENCE & TECHNOLOGY Towards an Immersive Breakthrough

Edited by:

Jedol Dayou, Azhan Hashim, Walter Charles Primus, Fuei Pien Chee, Mohamad Deraman and Roslan Abd-Shukor

Pages:

409-414

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1107.409

Citation:

N. A. M. Adnan et al., "Optical Absorption in Erbium Doped Phosphate Glass Embedded with Cobalt Nanoparticles", Advanced Materials Research, Vol. 1107, pp. 409-414, 2015

Online since:

June 2015

Authors:

Nur Aina Mardia Adnan, Md Rahim Sahar *, Md Supar Rohani

Keywords:

Cobalt Nanoparticles, Optical Energy Gap, Phosphate Glass, Urbach Energy

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