Optical Properties of Eu3+-Doped Y2O3 Nanotubes and Nanosheets Synthesized by Hydrothermal Method
Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanomaterials were obtained using a low-cost, large-scale, solution-based hydrothermal method followed by a thermal annealing process. The morphology of the Y<sub>2</sub>O<sub>3 </sub>:E...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8272329/ |
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| Summary: | Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanomaterials were obtained using a low-cost, large-scale, solution-based hydrothermal method followed by a thermal annealing process. The morphology of the Y<sub>2</sub>O<sub>3 </sub>:Eu<sup>3+</sup> nanomaterials can be controlled by tuning the aging time, aging temperature, and the pH values of the suspension. The optical properties of Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanosheets and nanotubes were investigated with the goal of improving the material's functionalities. Synchrotron X-ray diffraction patterns, field emission scanning electron microscopy images, high-resolution transmission electron microscopy images, emission spectra, excitation spectra, and fluorescence decay curves were measured and compared. The results showed that a novel Eu<sup>3+</sup> environment exists in Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> nanosheets, which led to rapid decay of emission at 611 nm. The unique properties of Y<sub>2</sub>O<sub>3</sub>:Eu<sup> 3+</sup> nanosheets could lead to potential applications in white light-emitting diodes (LEDs) based on GaAlN deep UV LEDs. |
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| ISSN: | 1943-0655 |