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Temperature and Excitation Power-Density Dependences of the Photoluminescence of BaZrO2.9 Compound

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Abstract

Temperature- and excitation density-dependent photoluminescence are presented and discussed in detail for the BaZrO2.9 compound prepared from the non-luminescent BaZrO3 sample. The thermal-quenching behavior of the photoluminescence peak intensity is described with two activation energies, E a1 = 185 and E a2 = 139 meV. The variation of the integrated photoluminescence intensity with the excitation density shows a linear behavior with the slope close to α = 1.06, indicating that the PL signal is attributed to the excitonic recombination.

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Authors and Affiliations

  1. Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, 3000, Sfax, Tunisia

    Kh. Dhahri, M. Bejar & E. Dhahri

  2. Physics Department (I3N), University of Aveiro, Aveiro, Portugal

    M. F. P. Graça

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  1. Kh. Dhahri
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  2. M. Bejar
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  3. E. Dhahri
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  4. M. F. P. Graça
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Correspondence to Kh. Dhahri.

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Dhahri, K., Bejar, M., Dhahri, E. et al. Temperature and Excitation Power-Density Dependences of the Photoluminescence of BaZrO2.9 Compound. J. Electron. Mater. 46, 709–712 (2017). https://doi.org/10.1007/s11664-016-5075-3

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  • DOI: https://doi.org/10.1007/s11664-016-5075-3

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