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Using multi-site substitution to design blue-exciting phosphor Mg2Y2Al2Si2O12:Mn2+ for full-spectrum plant growth LEDs
Journal of Luminescence ( IF 3.6 ) Pub Date : 2021-02-06 , DOI: 10.1016/j.jlumin.2021.117943
Zhipeng Wang , Panlai Li , JinjinLiu , Yuebin Li , Qi Bao , Xiangyu Meng , Keliang Qiu , Zhiping Yang , Zhijun Wang

Full-spectrum plant growth light emitting diode (LED) prepared using a variety of phosphors has some problems, such as energy loss and spectral distortion. It is the solution that designing a kind of phosphor, which is the single activated ion doped phosphor with the multiple emission. To achieve this goal, the host Mg2Y2Al2Si2O12 (Abbreviated as: MYASO) was selected from a large number of garnet materials which has the multi-sites, and the Mn2+ was selected as the activated ion which can produce the different emission in the different crystal field. The results show that Mn2+ can produce the green light (536 nm), red light (635 nm) and deep red light (735 nm), which correspond to the Mn2+ substituting for the tetra-coordinated Al3+, the octa-coordinated Mg2+ and the hexa-coordinated Mg2+, respectively, importantly, this phosphor can be efficiently excited by the 456 nm blue light, which matches well with the blue LED chip. Therefore, it may be a great potential application value in the production of plant growth LEDs.



中文翻译:

使用多位取代设计用于全光谱植物生长LED的激发蓝光的荧光粉Mg 2 Y 2 Al 2 Si 2 O 12:Mn 2+

使用多种荧光粉制备的全光谱植物生长发光二极管(LED)存在一些问题,例如能量损失和光谱失真。解决方案是设计一种荧光粉,即具有多重发射的单活化离子掺杂荧光粉。为了实现该目标,从具有多个位点的大量石榴石材料中选择了主体Mg 2 Y 2 Al 2 Si 2 O 12(缩写为:MYASO),并选择了Mn 2+作为活化离子。可以在不同的晶体场中产生不同的发射。结果表明,Mn 2+可以产生绿光(536 nm),红光(635 nm)和深红光(735 nm),分别对应于Mn 2+代替四配位Al 3+,八配位Mg 2+和重要的是,六价配位的Mg 2+可以被456 nm的蓝光有效地激发,这与蓝色LED芯片非常匹配。因此,在植物生长LED的生产中可能具有巨大的潜在应用价值。

更新日期:2021-02-15
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