| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 12038656 | Thin Solid Films | 2018 | 33 Pages |
Abstract
ZnO and ZnO/Zn2SiO4 thin films doped with 3% Eu3+ ions were prepared through sol-gel dip-coating and subsequently thermal annealing in the range of 600-900â¯Â°C. Effects of zinc and silica concentration on the structure and optical properties of these thin film specimens were investigated using thermogravimetric differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and emission spectroscopy. Transparent thin films containing ZnO nanocrystals and Zn2SiO4 nanocrystals were fabricated. It was found that Eu3+ ions were mainly resided in the amorphous matrix or the surface of the nanocrystals, instead of being incorporated into the nanocrystals. As a result, these composites showed intense red emission from Eu3+ ions upon 394â¯nm light emission, and violet emission at ~380â¯nm upon 266â¯nm light excitation.
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Authors
Suliman Eltayeb Elhadi, Chao Liu, Zhiyong Zhao, Kai Li, Xiujian Zhao,