Solution-Based Deposition of Transparent Eu-Doped Titanium Oxide Thin Films for Potential Security Labeling and UV Screening

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ID: 260582
2020
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Abstract
Transparent titanium oxide thin films attract enormous attention from the scientific community because of their prominent properties, such as low-cost, chemical stability, and optical transparency in the visible region. In this study, we developed an easy and scalable solution-based process for the deposition of transparent TiOx thin films on glass substrates. We showed that the proposed method is also suitable for the fabrication of metal-doped TiOx thin films. As proof-of-the-concept, europium Eu(III) ions were introduced into TiOx film. A photoluminescence (PL) study revealed that Eu-doped TiOx thin films showed strong red luminescence associated with 5D0→7Fj relaxation transitions in Eu (III). We found that prepared TiOx thin films significantly reduce the transmittance of destructive UV radiation; a feature that can be useful for the protection of photovoltaic devices. In addition, transparent and luminescent TiOx thin films can be utilized for potential security labeling.
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Authors Anara Molkenova;Laura Khamkhash;Ainur Zhussupbekova;Kuanysh Zhussupbekov;Sagyntay Sarsenov;Izumi Taniguchi;Igor V. Shvets;Timur Sh. Atabaev;Molkenova, Anara;Khamkhash, Laura;Zhussupbekova, Ainur;Zhussupbekov, Kuanysh;Sarsenov, Sagyntay;Taniguchi, Izumi;Shvets, Igor V.;Atabaev, Timur Sh.;
Journal Nanomaterials
Year 2020
DOI
10.3390/nano10061132
URL
https://www.mdpi.com/2079-4991/10/6/1132
Keywords
titanium oxide transparent thin film europium (iii) doping security labeling uv screening

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