Preparation and upconversion emission modification of crystalline colloidal arrays and rare earth fluoride microcrystal composites.

Preparation and upconversion emission modification of crystalline colloidal arrays and rare earth fluoride microcrystal composites.
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DOI:
10.1038/srep07636
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发表时间:
2015-01-06
期刊:
影响因子:
4.6
通讯作者:
Yang Y
Yang Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Liao J;Yang Z;Sun J;Lai S;Shao B;Li J;Qiu J;Song Z;Yang Y

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在本文中,制备了含有稀土氟化物微晶的高度有序的晶体胶体阵列。研究并改进了晶体胶体阵列中稀土氟化物微晶的上转换发射特性。可以在光子带隙及其带边缘区域分别观察到稀土氟化物上转换发射的显着抑制和增强。抑制或增强因子被证明与晶体胶体阵列的有序程度有关,并且对于上转换显示器和低阈值激光器的制备至关重要。
In this paper, highly ordered crystalline colloidal arrays containing rare earth fluoride microcrystals were fabricated. The upconversion emission property of rare earth fluoride microcrystals in crystalline colloidal arrays was studied and modified. A significant suppression and enhancement of the upconversion emission from the rare earth fluorides can be observed in the regions of the photonic band gap and its band edge, respectively. The suppression or enhancement factor was shown to be related to the ordered degree of the crystalline colloidal arrays and is critical in the preparation of upconversion displays and low-threshold lasers.
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