| Sr3Al2O6∶Eu2+红色发光纳米晶的新型形貌与发光性能的研究 |
| A Red Luminescence Nanocrystallite of Sr3Al2O6∶Eu2+: New Morphology and Luminescence Properties |
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| 摘要: |
| 关键词: Sr3Al2O6 花状形貌 纳米晶体 微波干燥 溶胶-凝胶法 |
| 基金项目: |
| Abstract: A red luminescent Sr3Al2O6∶Eu2+ nanocrystallites with new morphology were synthesized by sol-gel route assisted by microwave irradiation. The phosphor powders were characterized by X-ray diffraction (XRD)， scanning electron microscopy (SEM) and fluorescence spectroscopy. The results reveal that the calcination temperature of the Sr3Al2O6∶Eu2+ phosphor crystallites greatly affects its morphology. With temperature increasing， the phosphor crystallites morphology showed primarily from nanorod-like， mixture of nanorod and flower-like to homogeneous flower-like morphology. The effects of new morphology on luminescent properties of phosphors were investigated. Uniformly dispersed flower-like Sr3Al2O6∶Eu2+ phosphor powders showed the strongest luminescent intensity and the longest afterglow time. |
| Keywords: Sr3Al2O6 flower-like morphology nanocrystallite microwave drying sol-gel method |
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| 摘要点击次数: 1908 |
| 全文下载次数: 2398 |
| 张 平,李玲霞,徐明霞.Sr3Al2O6∶Eu2+红色发光纳米晶的新型形貌与发光性能的研究[J].无机化学学报,2007,23(9):1679-1682. |
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