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- W2783082425 abstract "The development of enhanced optical devices relies on key materials properties. In this context, researchers have investigated the effects of metal nanoparticles incorporation in active rare-earth materials. Here, we discuss the effects of Silver nitrate addition 0.5%, 1.0% and 2.0% mol%) into a Pr3+ doped tellurite-tungstate glasses (TWNN) formed by the conventional melt-quenching technique. The XRD curves confirmed the amorphous structural nature of TWNN glasses. The FTIR spectra identified the presence of different vibrational groups. DSC curves verified the increase around 70 oC for thermal stability with silver addition. Absorption spectra observed surface plasmon resonance (SPR) band around 500 nm. Luminescence measures shows enhanced and quenching for Pr3+ transitions under the 473 nm excitation. The band around 480-520 nm are more affected by SPR band by quenching, and the bands around 575-675 nm are luminescence emission increased due to the presence of silver nanoparticles. In addition, lifetime decays as a function of heat treatment time, has also been verified. The Ag enhances the lifetime regarding the samples annealed by 20 hours and as the Ag concentration increases, the lifetime stretches as well. The present results shows that Pr3+-Ag codoped TWNN glass lead to some remarkable improvement, verified in properties such as lifetime constants or emissions intensities and is a promising candidate for photonic devices." @default.
- W2783082425 created "2018-01-26" @default.
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- W2783082425 date "2018-06-01" @default.
- W2783082425 modified "2023-09-25" @default.
- W2783082425 title "On the prospects of enhance glass based devices with silver nanoparticles: The case of Pr3+ doped tellurite-tungstate glasses" @default.
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- W2783082425 doi "https://doi.org/10.1016/j.jallcom.2018.03.281" @default.
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