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Thermal stability of luminescence of $NaCaPO_{4}$ : $Eu^{2+}$phosphor for white-light-emitting diodes
| Content Provider | Scilit |
|---|---|
| Author | Qin, Chuanxiang Huang, Yanlin Shi, Liang Chen, Guoqiang Qiao, Xuebin Seo, Hyo Jin |
| Copyright Year | 2009 |
| Description | Journal: Journal of Physics D: Applied Physics A green-emitting phosphor, $Eu^{2+}$-activated $NaCaPO_{4}$, was synthesized by the conventional solid-state reaction. The photoluminescence excitation and emission spectra, and the temperature dependence of luminescence intensity of the phosphor were investigated. The results showed that $NaCaPO_{4}$ : $Eu^{2+}$ could be efficiently excited by incident light of 280–420 nm, which matched well with the emission wavelengths of near-UV LED chips. $NaCaPO_{4}$ : $Eu^{2+}$ has a higher quenching temperature. With an increase in the temperature, the emission bands of $NaCaPO_{4}$ : $Eu^{2+}$ show an abnormal blue-shift with broadening bandwidth and decreasing emission intensity. The phosphor has a promising potential for white-light-emitting diodes pumped by ultraviolet chips. The CIE coordinates and luminescence decay (lifetimes) of $Eu^{2+}$ ions in this monophosphate were discussed in order to further investigate the potential applications. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/42/18/185105/pdf |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/42/18/185105 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 18 |
| Volume Number | 42 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2009-09-03 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics Applied Chemistry White Light Emitting |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
