| Автор | Nguyen, Vu |
| Автор | Chi Tran, Thi Kim |
| Автор | Nguyen, Duc Van |
| Дата выпуска | 2011-12-01 |
| dc.description | YVO<sub>4</sub>:Er<sup>3+</sup> and YVO<sub>4</sub>:Er<sup>3+</sup>, Yb<sup>3+</sup> nanomaterials were prepared via combustion synthesis using urea as fuel and metal nitrates as precursor. The morphology and the structure of the prepared samples were characterized by x-ray diffraction, scanning electron microscopy and transmission electron microscopy. The average size of the prepared materials ranged from 20 to 30 nm in diameter. The effects of Er<sup>3+</sup> and Yb<sup>3+</sup> doping concentrations on structure and optical properties have been investigated. Optical properties of YVO<sub>4</sub>:Er<sup>3+</sup> and YVO<sub>4</sub>:Er<sup>3+</sup>, Yb<sup>3+</sup> nanoparticles were measured by photoluminescent excitation and emission spectroscopies. For the YVO<sub>4</sub>:Er<sup>3+</sup> and YVO<sub>4</sub>:Er<sup>3+</sup>, Yb<sup>3+</sup> samples, two strong green emissions centered at 524 and 552 nm are found, corresponding to the <sup>2</sup>H<sub>11/2</sub>—<sup>4</sup>I<sub>15/2</sub> and <sup>4</sup>S<sub>11/2</sub>—<sup>4</sup>I<sub>15/2</sub> transitions of Er<sup>3+</sup> ions, respectively. Upconversion emission in the green region of the YVO<sub>4</sub>:Er<sup>3+</sup> nanoparticles under 980 nm excitation was also investigated. Strong emission from these materials is promising for luminescent biolabeling applications. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2011 Vietnam Academy of Science & Technology |
| Название | Combustion synthesis and characterization of Er<sup>3+</sup>-doped and Er<sup>3+</sup>, Yb<sup>3+</sup>-codoped YVO<sub>4</sub> nanophosphors oriented for luminescent biolabeling applications |
| Тип | paper |
| DOI | 10.1088/2043-6262/2/4/045011 |
| Electronic ISSN | 2043-6262 |
| Print ISSN | 2043-6254 |
| Журнал | Advances in Natural Sciences: Nanoscience and Nanotechnology |
| Том | 2 |
| Первая страница | 45011 |
| Последняя страница | 45015 |
| Аффилиация | Nguyen, Vu; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam |
| Аффилиация | Chi Tran, Thi Kim; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam |
| Аффилиация | Nguyen, Duc Van; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam |
| Выпуск | 4 |
