| 宽带近红外Na3CrF6荧光粉的水热合成及发光性能 | |
| Hydrothermal synthesis and luminescent properties of broadband near-infrared Na3CrF6 phosphor | |
| 摘要: 利用水热法合成了一种宽带近红外Na3CrF6荧光粉，研究了其结构、微观形貌和光致发光性能。结果表明，在435 nm激发光的照射下，Na3CrF6荧光粉可发出650~850 nm宽带近红外光，其峰值位于738 nm处，半高宽为95 nm；通过分析光谱数据，发现Cr3+在Na3CrF6荧光粉中的晶体场强度为1.72，处于弱晶体场环境中；298~473 K温度范围内，随着加热温度的升高，Na3CrF6荧光粉的发光强度缓慢下降。 | |
| 关键词: 宽带近红外荧光粉 水热合成 Na3CrF6 光致发光性能 荧光粉转换发光二极管 | |
| 基金项目: 河北省“巨人计划”创新团队领军人才计划项目(2018)资助。 | |
| Abstract: A broadband near-infrared Na3CrF6 phosphor was synthesized by hydrothermal method, and its structure, microstructure, and photoluminescence properties were investigated. The results show that under excitation of 435 nm, the Na3CrF6 phosphor can emit broadband near-infrared light of 650-850 nm, with a peak at 738 nm and a half maximum width of 95 nm. The crystal field intensity of Cr3+ in Na3CrF6 phosphor was calculated to be 1.72 by analyzing spectral data, indicating that Cr3+ is located in the weak crystal field environment. The luminescent intensity of Na3CrF6 phosphor decreased slowly with the increase of heating temperature in the temperature range of 298-473 K. | |
| Keywords: broadband near-infrared phosphor hydrothermal synthesis Na3CrF6 photoluminescent property phosphor-converted light-emitting diode | |
| 投稿时间：2024-03-27 修订日期：2024-10-27 | |
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| 张涵,孙剑锋,梁金生.宽带近红外Na3CrF6荧光粉的水热合成及发光性能[J].无机化学学报,2025,41(2):349-356. | |
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