High-temperature high-pressure hydrothermal synthesis of Dy3+-doped YNbO4 single crystal and its luminescence properties
Min Yang , Qi-liang Li , Ying Wang , Xiao-yang Liu , Xiao-feng Wang
Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (6) : 1050 -1054.
High-temperature high-pressure hydrothermal synthesis of Dy3+-doped YNbO4 single crystal and its luminescence properties
Single crystal Dy3+ doped YNbO4 phosphors were prepared via a high-temperature high-pressure hydrothermal procedure. Under excitation at 270 nm, the Dy3+-doped YNbO4 phosphor shows bright white emission, which is composed of two strong bands at 492 and 576 nm corresponding to the characteristic 4 F 9/2→6 H 15/2 and 4 F 9/2→6 H 13/2 transitions of Dy3+, respectively. The dominant band was observed at 352 nm, which corresponds to the 6 H 15/2→6 P 7/2 transition of Dy3+. Nearly white light was achieved at λ ex 270, 310 and 388 nm and the CIE(International Commission on Illumination) values were (0.3135, 0.3421), (0.3088, 0.3380) and (0.3146, 0.3296), respectively.
Dy-YNbO4 / Single crystal / High-temperature high-pressure / Hydrothermal / Luminescence
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
/
| 〈 |
|
〉 |