Optical Absorption of Nd3+ Doped Tellurite Glass Containing Ag Nanoparticles

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Abstract:

Understanding the optical properties of rare earth doped tellurite glasses with embedded metallic nanoparticles (NPs) are promising for photonics. Series of Nd3+ doped tellurite glasses containing Ag NPs having chemical composition (70-x)Te2O3-10MgO-20Li2CO3-0.5Nd2O3-xAg, where 0.0 x 1.0 mol% are synthesized. Their optical properties are measured using UV-Vis-NIR spectroscopy. The absorption spectra exhibits nine absorption bands in the wavelength range of 300-900 nm are obtained and the glass showed light emission due to 4F3/2 4I9/2 transition. The values of optical band gap Eopt and Urbach energy Eu are evaluated from the absorption band. The value of Eopt is found to lie between 2.78 and 2.91 eV for the direct transition whereas the Eu values lie between 0.27 and 0.37 eV. The optical behavior of the samples is studied with varying Ag NPs content and the results are compared with similar studies.

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236-240

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] L.R.P. Kassab, L.F. Freitas, T.A. A Assumpcao, D.M. da Silva, C.B. de Araujo: Appl Phys B Vol. 104 (2011), p.1029.

Google Scholar

[2] Luciana. R. Kassab, Cid B. de Araujo, Renata A. Kobayashi, Ricardo de Almeida Pinto, Davinson M. da Silva: J. Appl. Phys Vol. 102 (2001), p.103515.

Google Scholar

[3] Vineet Kumar Rai, Leonardo de S. Menezes, Cid B. de Araujo, Luciana R.P. Kassab, Davinson M. da Silva: J. Appl. Phys Vol. 103 (2008), p.093526.

Google Scholar

[4] Luciana R.P. Kassab, Ricardo de Almeida, Davinson M. da Silva, Cid B. de Ataujo: J. Appl. Phys Vol. 104 (2008), p.093531.

Google Scholar

[5] K.U. Kumat, V.A. Prathyusha, P. Babu, C.K. Jayasankar, A.S. Joshi, A. Speghini, M Bettinelli: Spectrochimia Acta Part A Vol. 67 (2007), pp.702-708.

DOI: 10.1016/j.saa.2006.08.027

Google Scholar

[6] R. Rajeswari, S. Surendra Babu, C.K. Jayasankar: Spectrochimica Acta Part A Vol. 77 (2010), p.135.

Google Scholar

[7] T.V. R Rao, R. R Reddy, Y. Nazeer Ahammed, M. Parandamaiah, N. Sooraj Hussain, S. Buddhudu, K. Purandar: Infrared Physics & Technology Vol. 41 (2000), p.247.

DOI: 10.1016/s1350-4495(99)00060-2

Google Scholar

[8] R. El-Mallawany, M. Dirar Abdalla, I. Abbas Ahmed: Materials Chemistry and Physics Vol. 109 (2008), p.291.

Google Scholar

[9] K. Selvaraju, K. Marimuthu: Journal of Luminescence Vol. 132 (2012), p.1171.

Google Scholar