Optical and structural investigations of annealing impact on phase separation of Erbium-doped Al2O3 layers

Helou, Nissrine Al; Khomenkova, L.; Cadel, E.; Labbé, Christophe; Cardin, Julien; Gourbilleau, Fabrice; Talbot, Etienne

doi:10.1016/j.mseb.2023.116672

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…The 1649 cm -1 peak likely arises from the asymmetric stretching of OH groups and the stretching and bending modes of absorbed water molecules [39]. Notably, an intense band at 1093 cm -1 is attributed to the asymmetric stretching of Si-O-Si bonds, while a strong peak at 798 cm -1 corresponds to the symmetric stretching of Si-O-Si bonds [41,42]. Another medium peak at 459 cm -1 may be attributed to the bending modes of O-Si-O bonds [42,43].…”

Section: Ftirmentioning

confidence: 99%

Synthesis and Optical Properties of Erbium-Doped Sodium Silicate in Sol-Gel Matrix

Mansour,

Abou Hammad,

El Nahrawy

2024

Silicon

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In this study, we investigated how the concentration of erbium (0.0, 1, 2 mol% Er) affects the structural and optical properties of thin films made from sol-gel sodium silicate doped with erbium nitrate, thermally treated at 250 °C. Through systematic investigation, we explore the structural evolution and optical behavior of the thin films across varying Er3+ concentrations. The sol-gel demonstrated effective capabilities for substantial concentrations of Er3+ oxides through doping at lower calcination temperatures. The spectroscopic characteristics were studied using visible-near infrared spectroscopy (UV–vis–NIR), transmission electron microscopy, and Fourier transform infrared spectroscopy. Increasing the Er ratio decreased both the transmission and the energy band gap (3.6–3.34 eV) of the films while the absorption peak increased. The obtained results suggest that Er3+ activators demonstrate advantageous optical properties in the evaluated sodium silicate glass matrix. With the introduction of Er, optical transmittance ranges from 85 to 55% in the visible and near-infrared (NIR) regions, highlighting their advantageous characteristics. This research contributes to advancing the understanding of erbium-doped thin films for potential applications in optoelectronic devices and photonics.

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Section: Ftirmentioning

confidence: 99%

Synthesis and Optical Properties of Erbium-Doped Sodium Silicate in Sol-Gel Matrix

Mansour,

Abou Hammad,

El Nahrawy

2024

Silicon

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Atomic and Molecular Layer Deposition of Functional Thin Films Based on Rare Earth Elements

Ghazy,

Zanders,

Devi

et al. 2024

Adv Materials Inter

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High‐quality rare earth element (R) based thin films are in demand for applications ranging from (opto)electronics and energy conversion/storage to medical diagnostics, imaging and security technologies. Atomic layer deposition (ALD) offers large‐area homogeneous and conformal ultrathin films and is uniquely suited to address the requirements set by the potential applications of R‐based thin films. The history starts from the 1990s, when the first electroluminescent R‐doped thin films were grown with ALD. The interest soon expanded to rare earth element oxide layers as high‐k gate dielectrics in semiconductor devices, and later to complex ternary and quaternary perovskite oxides with novel functional properties. The most recent advancements related to the combined atomic/molecular layer deposition (ALD/MLD) have rapidly expanded the family of R‐organic hybrid materials with intriguing luminescence and up‐conversion properties. This review provides up‐to‐date insights to the current state of ALD and ALD/MLD research of R‐based thin films and highlights their application potential.

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Optical and structural investigations of annealing impact on phase separation of Erbium-doped Al2O3 layers

Cited by 2 publications

References 33 publications

Synthesis and Optical Properties of Erbium-Doped Sodium Silicate in Sol-Gel Matrix

Synthesis and Optical Properties of Erbium-Doped Sodium Silicate in Sol-Gel Matrix

Atomic and Molecular Layer Deposition of Functional Thin Films Based on Rare Earth Elements

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