Photoluminescence Properties of Yb and Ag Co-Doped Ta2O5 Thin Films

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We prepared ytterbium and silver co-doped tantalum-oxide (Ta2O5:Yb,Ag) thin films using a simple co-sputtering method and evaluated photoluminescence (PL) properties of the films after annealing. We found that a PL peak at a wavelength of 980 nm due to Yb3+ can be strongly enhanced by Ag doping. From X-ray diffraction measurements, we found that Ag2Ta8O21 and orthorhombic Ta2O5 crystalline phases are very important in order to enhance the 980-nm peak observed from our Ta2O5:Yb,Ag thin films. Because of the human-body transmittability of the 980-nm wavelength, such films are applicable to a novel real-time X-ray dosimeter system.

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Edited by:

Osamu Hanaizumi

Pages:

43-47

Citation:

M. Kanakubo et al., "Photoluminescence Properties of Yb and Ag Co-Doped Ta2O5 Thin Films", Key Engineering Materials, Vol. 790, pp. 43-47, 2018

Online since:

November 2018

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[1] T. Sanada, Y. Wakai, H. Nakashita, T. Matsumoto, C. Yogi, S. Ikeda, N. Wada, K. Kojima, Preparation of Eu3+-doped Ta2O5 phosphor particles by sol-gel method, Opt. Mater. 33 (2010) 164-169.

DOI: https://doi.org/10.1016/j.optmat.2010.08.018

[2] K. Miura, T. Osawa, Y. Yokota, T. Suzuki, O. Hanaizumi, Fabrication of Tm-doped Ta2O5 thin films using a co-sputtering method, Results Phys. 4 (2014) 148-149.

DOI: https://doi.org/10.1016/j.rinp.2014.08.011

[3] K. Miura, T. Osawa, Y. Yokota, O. Hanaizumi, Fabrication and evaluation of Ta2O5:Y2O3 co-sputtered thin films, Results Phys. 4 (2014) 185-186.

DOI: https://doi.org/10.1016/j.rinp.2014.09.004

[4] K. Miura, T. Osawa, T. Suzuki, Y. Yokota, O. Hanaizumi, Fabrication and evaluation of green-light emitting Ta2O5:Er, Ce co-sputtered thin films, Results Phys. 5 (2015) 78-79.

DOI: https://doi.org/10.1016/j.rinp.2015.02.002

[5] K. Miura, T. Osawa, T. Suzuki, Y. Yokota, O. Hanaizumi, Yellow light emission from Ta2O5:Er, Eu, Ce thin films deposited using a simple co-sputtering method, Results Phys. 5 (2015) 26-27.

DOI: https://doi.org/10.1016/j.rinp.2014.11.003

[6] K. Miura, K. Kano, Y. Arai, O. Hanaizumi, Preparation of light-emitting ytterbium-doped tantalum-oxide thin films using a simple co-sputtering method, Mater. Sci. Appl. 6 (2015) 209-213.

DOI: https://doi.org/10.4236/msa.2015.62024

[7] A. Suzuki, S. Kurosawa, S. Nagata, T. Yamamura, J. Pejchal, A. Yamaji, Y. Yokota, K. Shirasaki, Y. Homma, D. Aoki, T. Shikama, A. Yoshikawa, Crystal growth and luminescence properties of Yb-doped Gd3Al2Ga3O12 infra-red scintillator, Opt. Mater. 36 (2014).

DOI: https://doi.org/10.1016/j.optmat.2014.04.007

[8] M.R. Dousti, M.R. Sahar, S.K. Ghoshal, R.J. Amjad, R. Arifin, Plasmonic enhanced luminescence in Er3+:Ag co-doped tellurite glass, J. Mol. Struct. 1033 (2013) 79-83.

DOI: https://doi.org/10.1016/j.molstruc.2012.08.022