International Journal of Photochemistry and Photobiology


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Effect of Increasing Temperature on 1.5 μm Spectroscopic Emission of Er3+ Ions Activated Phospho-silicate Thin Film

Different concentrations of Er3+ ions- embedded nano-composite phospho-silicate ranging from 1 up to 3.5 mol % in thin film, symbolic as (S20P), (S20P1Er)T, (S20P2.5Er)T and (S20P3.5Er)T, respectively were prepared as advanced materials for planar waveguide application. Spin coating sol gel technique will be used to prepare the thin films. The prepared thin films optical and spectroscopic assessments were performed using transmittance, absorption, Raman, photoluminescence and refractive index (n) calculations. The observed transmittance T (%) and reflectance R (%) spectra were measured using Jasco V-570 spectrophotometer, in wavelength range (0.2-2.5 µm), confirmed good transparency for the prepared films, where the T (%) was higher than 92% and S20P1ErT was the most transparent one. The mentioned higher transparency presence was considered as a big challenge, especially after doping the silica gel with such higher phosphorus molar percent up to 20 mol %. Such challenge confirmed that the prepared thin films were suitable for the low losses and active planar waveguide fabrication. The room temperature photoluminescence (RTPL) quenching was observed at lower temperature 100°C for (S20P3.5Er)T. Emission at 1.5 µm upon excitation at 514.5 nm was detected and characteristic to the 4I13/24I15/2 erbium ions intra-4F transition for all prepared samples. The morphology of the prepared thin films was examined by using the Field emission scanning electron microscope (FESEM), while the measured film thickness obtained from cross section view from the (FESEM) give rise to 1.791 µm value for (S20P3.5Er)T. The bigger moderate thickness than 1 µm was an adequate parameter for supporting planar optical wave guide applications.

Sol-Gel, Thin Film, Photoluminescence, (FESEM), Planar Waveguide

APA Style

Eman Helmy Ahmed, Magdy Mohamed Hussein Ayoub, Ahmed Ismael Hashem, Claudia Wickleder, Matthias Adlung, et al. (2021). Effect of Increasing Temperature on 1.5 μm Spectroscopic Emission of Er3+ Ions Activated Phospho-silicate Thin Film. International Journal of Photochemistry and Photobiology, 5(2), 28-35.

ACS Style

Eman Helmy Ahmed; Magdy Mohamed Hussein Ayoub; Ahmed Ismael Hashem; Claudia Wickleder; Matthias Adlung, et al. Effect of Increasing Temperature on 1.5 μm Spectroscopic Emission of Er3+ Ions Activated Phospho-silicate Thin Film. Int. J. Photochem. Photobiol. 2021, 5(2), 28-35. doi: 10.11648/j.ijpp.20210502.13

AMA Style

Eman Helmy Ahmed, Magdy Mohamed Hussein Ayoub, Ahmed Ismael Hashem, Claudia Wickleder, Matthias Adlung, et al. Effect of Increasing Temperature on 1.5 μm Spectroscopic Emission of Er3+ Ions Activated Phospho-silicate Thin Film. Int J Photochem Photobiol. 2021;5(2):28-35. doi: 10.11648/j.ijpp.20210502.13

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