Synthesis of the phase pure Ba3Si6O12N2:Eu2+ green phosphor and its application in high color rendition white LEDs
文献类型：期刊论文
| 作者 | Li, Wanyuan ; Xie, Rong-Jun ; Zhou, Tianliang ; Liu, Lihong ; Zhu, Yuejin |
| 刊名 | DALTON TRANSACTIONS
 |
| 出版日期 | 2014 |
| 卷号 | 43期号:16页码:6132 |
| 中文摘要 | The promising green oxynitride phosphor, Ba3Si6O12N2:Eu2+, was synthesized at 1350 degrees C for 5 hours under a reducing N-2/H-2 (5%) atmosphere by using the solid-state reaction method. The phase purity was investigated by varying the nominal compositions, and the pure phase was achieved by carefully controlling the Si/Ba and O/Ba ratios. The phosphor displayed a broad excitation band spanning from the ultraviolet (UV) to the blue spectral region, and showed a single symmetrical emission band peaking at 525 nm with a full width at half maximum (FWHM) of similar to 68 nm. The as-prepared green phosphor exhibited a small thermal quenching, which remained 90% of the initial emission intensity when measured at 200 degrees C. The internal and external quantum efficiencies measured under 450 nm excitation were 68 and 38%, respectively. Color temperature-tunable white LEDs with a high color rendering index of R-a = 88-94 were attained by combining the prepared green phosphor and a red phosphor Sr2Si5N8:Eu2+ with a blue LED chip. |
| 公开日期 | 2015-09-20 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/12032]  |
| 专题 | 宁波材料技术与工程研究所_2014专题 |
| 推荐引用方式 GB/T 7714 | Li, Wanyuan,Xie, Rong-Jun,Zhou, Tianliang,et al. Synthesis of the phase pure Ba3Si6O12N2:Eu2+ green phosphor and its application in high color rendition white LEDs[J]. DALTON TRANSACTIONS,2014,43(16):6132. |
| APA | Li, Wanyuan,Xie, Rong-Jun,Zhou, Tianliang,Liu, Lihong,&Zhu, Yuejin.(2014).Synthesis of the phase pure Ba3Si6O12N2:Eu2+ green phosphor and its application in high color rendition white LEDs.DALTON TRANSACTIONS,43(16),6132. |
| MLA | Li, Wanyuan,et al."Synthesis of the phase pure Ba3Si6O12N2:Eu2+ green phosphor and its application in high color rendition white LEDs".DALTON TRANSACTIONS 43.16(2014):6132. |
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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