| KLa(MoO_4)_2∶Yb~(3+),Ho~(3+),Tm~(3+)白光荧光粉的制备及性能研究 |
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| 引用本文： | 张玉红,何蕙羽,刘航,吴芳,王勃. KLa(MoO_4)_2∶Yb~(3+),Ho~(3+),Tm~(3+)白光荧光粉的制备及性能研究[J]. 发光学报, 2017, 38(11). DOI: 10.3788/fgxb20173811.1469 |
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| 作者姓名： | 张玉红 何蕙羽 刘航 吴芳 王勃 |
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| 作者单位： | 吉林建筑大学 电气与计算机学院,吉林 长春,130118 |
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| 基金项目： | 国家重点研究计划，国家自然科学基金，吉林省教育厅项目(2016140;JJKH20170233KJ)资助 Supported by National key R&D Program of China，National Natural Science Foundation of China，Project of Jilin Provincial Education Department |
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| 摘 要： | 采用水热法成功制备了Yb~(3+),Ho~(3+),Tm~(3+)三掺的多晶KLa(Mo O4)2荧光粉。在980 nm激光激发下,KLa(MoO_4)_2∶Yb~(3+),Ho~(3+),Tm~(3+)发出裸眼可见的明亮白光,这其中包括Tm~(3+)离子发出的蓝光(~475 nm)、Ho~(3+)离子发出的绿光(~540 nm)和红光(~651 nm)。根据色度坐标系计算得出的坐标点可以看出,随着Ho~(3+)/Tm~(3+)掺杂浓度之比的增加,KLa(Mo O_4)_2∶Yb~(3+),Ho~(3+),Tm~(3+)所发出的白光呈现从冷白光到暖白光的变化。最后详细讨论了KLa(Mo O_4)_2∶Yb~(3+),Ho~(3+),Tm~(3+)荧光粉可能的发光机制。
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| 关 键 词： | 白光LED 上转换 荧光粉 稀土 |
Preparation and Properties of KLa( MoO4 ) 2:Yb3+,Ho3+,Tm3+ White Phosphors |
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| ZHANG Yu-hong,HE Hui-yu,LIU Hang,WU Fang,WANG Bo. Preparation and Properties of KLa( MoO4 ) 2:Yb3+,Ho3+,Tm3+ White Phosphors[J]. Chinese Journal of Luminescence, 2017, 38(11). DOI: 10.3788/fgxb20173811.1469 |
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| Authors: | ZHANG Yu-hong HE Hui-yu LIU Hang WU Fang WANG Bo |
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| Abstract: | The polycrystalline KLa( MoO4 ) 2:Yb3+,Ho3+,Tm3+ phosphors were synthesized by the simple hydrothermal method. Under the excitation of 980 nm laser, KLa ( MoO4 ) 2: Yb3+, Ho3+, Tm3+ phosphors show bright white upconversion emission visible to the naked eyes, which composes of blue emission at ~475 nm from Tm3+, green and red emission at ~540 nm and ~651 nm from Ho3+. The experiment results show that the coordinates of KLa(MoO4)2:Yb3+,Ho3+,Tm3+ in the commission international CIE chromaticity diagram can be controlled from cool to warm white color depending on the rate of Ho3+/Tm3+ concentrations. |
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| Keywords: | white-LED upconversion phosphor rare earths |
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