| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1593958 | Solid State Communications | 2009 | 4 Pages |
Abstract
Orange-emitting Sr3Al2O5Cl2:Eu2+ phosphors were synthesized by a high-temperature solid-state reaction. The excitation spectrum shows a broad band from the UV region to the blue region. The emission spectrum shows strong orange emission peaking at 610 nm, attributed to the d–f transition of the Eu2+ ion. By combining the Sr3Al2O5Cl2:Eu2+ phosphor with 420 nm and 460 nm chips, three white light-emitting diodes (LEDs) were fabricated. The warm-white LEDs show color rendering indexes of 76, 66 and 90 with color temperatures of 2447, 3546 and 4300 K, respectively. This new phosphor exhibits the potential to act as a single host doped with Eu2+ phosphor for UV or blue chip excited white LEDs.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Xinmin Zhang, Namsik Choi, Kwangwon Park, Jongsu Kim,