| Photoluminescence degradation and color shift studies of annealed BaMgAl10O17:Eu2+ phosphor | |
| Department | 固体润滑国家重点实验室 |
| Zhang ZH(张占辉); Wang YH(王育华); Li XX(李小侠); Dou YK(都云昆); Liu WJ(刘文晶) | |
| 2007 | |
| Source Publication | Journal of Luminescence
 |
| ISSN | 0022-2313 |
| Volume | 122-123Pages:1003-1005 |
| Abstract | The photoluminescence (PL) in UV and VUV regions, such as excitation and emission spectra, PL intensity, full-width at halfmaximum (FWHM) and chromaticity coordinates, of pre- and post-annealed BaMgAl10O17:Eu2+ (BAM) samples were investigated. The observed more PL degradation under VUV excitation was assigned to the formation of defects (extinction centers or new Eu2+ centers) which decreased the luminance efficiency of Eu2+ in mirror plane. The increasing y value of chromaticity coordinates that appeared in annealed samples under 147nm excitation was attributed to the migration of Eu2+ from mirror plane to spinel block, which induced long wavelength emission. Therefore, besides the well-accepted oxidation mechanism, the migration of Eu2+ also led to the decrease of blue luminescent centers, and there by is responsible for the PL degradation, too. The conclusion of this work revealed a more full-scale and precise mechanism of thermal degradation than the conventional one. |
| Keyword | Bamgal10o17:Eu2++ Thermal Degradation Color Shift |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | NSFC (50272026);the National High Technology Research and Development Program of China (2003AA324020);the Excellent Young Teachers Program of MOE, China (2002);the Natural Science Foundation of Gansu Province (ZS031-A25-033-C) |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4050 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Wang YH(王育华) |
| Recommended Citation GB/T 7714 | Zhang ZH,Wang YH,Li XX,et al. Photoluminescence degradation and color shift studies of annealed BaMgAl10O17:Eu2+ phosphor[J]. Journal of Luminescence,2007,122-123:1003-1005. |
| APA | 张占辉,王育华,李小侠,都云昆,&刘文晶.(2007).Photoluminescence degradation and color shift studies of annealed BaMgAl10O17:Eu2+ phosphor.Journal of Luminescence,122-123,1003-1005. |
| MLA | 张占辉,et al."Photoluminescence degradation and color shift studies of annealed BaMgAl10O17:Eu2+ phosphor".Journal of Luminescence 122-123(2007):1003-1005. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20071003-1005.pdf（148KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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