Tunable luminescent spectra via energy transfers between different lattice sites in Ce3+, Mn2+ codoped Ba9Lu2Si6O24 phosphors for NUV-based warm white LED applications
文献类型：期刊论文
| 作者 | Zhang, Jianxin; Liu, Yongfu; Song, Kaixin; Jiang, Haochuan; Jiang, Jun |
| 刊名 | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
 |
| 出版日期 | 2018 |
| 卷号 | 29期号:6页码:4547-4556 |
| 关键词 | Light-emitting-diodes Single-phase Green Phosphor Color Efficient Silicate |
| 英文摘要 | A series of Ce3+-Mn2+ codoped Ba9Lu2Si6O24 (BLS) were synthesized by high-temperature solid-state reactions. The 380-410 nm excitation band of Ce3+ at the Lu sites (Ce(1)) matches well with the emission light of commercial near-ultraviolet (NUV) light-emitting diode (LED) chips. Under the Ce(1) excitation, BLS:Ce3+, Mn2+ exhibited a tunable emission from blue-green to yellow-orange via energy transfers (ETs) from Ce(1) to Mn2+. The ET was demonstrated to be of the resonant type via a dipole-quadrupole mechanism. At room temperature (RT), the optimal internal and external quantum efficiencies (QEs) of BLS:Ce3+, Mn2+ were determined as 79 and 42%. At 150 A degrees C, 85% of the RT QE still can be remained, showing a high thermal stability. A warm white LED (WLED) with a color rendering index of 84 and a correlated color temperature of 3660 K was obtained by combining a 395 nm NUV chip with the phosphor and CaAlSiN3:Eu2+. The efficiency reaches 17 lm W-1 at 20 mA, which is better than the value of most NUV-based WLEDs. These results indicate the promising application of the phosphor as an attractive candidate for WLEDs. |
| 学科主题 | Engineering ; Polymer Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16784]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Zhang, Jianxin,Liu, Yongfu,Song, Kaixin,et al. Tunable luminescent spectra via energy transfers between different lattice sites in Ce3+, Mn2+ codoped Ba9Lu2Si6O24 phosphors for NUV-based warm white LED applications[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2018,29(6):4547-4556. |
| APA | Zhang, Jianxin,Liu, Yongfu,Song, Kaixin,Jiang, Haochuan,&Jiang, Jun.(2018).Tunable luminescent spectra via energy transfers between different lattice sites in Ce3+, Mn2+ codoped Ba9Lu2Si6O24 phosphors for NUV-based warm white LED applications.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,29(6),4547-4556. |
| MLA | Zhang, Jianxin,et al."Tunable luminescent spectra via energy transfers between different lattice sites in Ce3+, Mn2+ codoped Ba9Lu2Si6O24 phosphors for NUV-based warm white LED applications".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 29.6(2018):4547-4556. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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