Synthesis and luminescence of Y2O3:Eu3+ inorganic-organic hybrid nanostructures with thenoyltrifluoroacetone
Synthesis and luminescence of Y2O3:Eu3+ inorganic-organic hybrid nanostructures with thenoyltrifluoroacetone
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噻吩酰三氟丙酮Y2O3:Eu3无机-有机杂化纳米结构的合成及发光
DOI：
10.1016/j.ceramint.2013.09.135
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发表时间：
2014
影响因子：
5.2
通讯作者：
Shi Wangzhou
中科院分区：
文献类型：
--
作者：
Ji Lu;Chen Nan;Du Guoping;Yan Mingming;Shi Wangzhou
采用简单的水热法和退火工艺合成了尺寸约为32 nm的立方型Y2O3:Eu3+纳米颗粒。正如预期的那样，Y2O3:Eu3+纳米颗粒具有200 ~ 285 nm宽的Eu-O激发带，峰值约为260 nm。然后用Y2O3:Eu3+纳米颗粒与壬基三氟丙酮（TTA）制备了无机-有机杂化纳米结构。Y2O3:Eu3+ -TTA杂化纳米结构表现出280 ~ 390 nm范围内的强激发带，峰值在368 nm左右。这一新的激发带归因于Y2O3:Eu3+ -TTA杂化体系的能量传递机制。有趣的是，这种能量传递机制与Y2O3:Eu3+纳米粒子的Eu-O激发密切相关。研究了材料的相结构、化学键信息、微观结构特征和发光性能。
Cubic Y2O3:Eu3+nanoparticles with a size about 32 nm were synthesized using a facile hydrothermal method followed by an annealing process. As expected, the Y2O3:Eu3+nanoparticles had a broad Eu–O excitation band ranging from 200 nm to 285 nm peaking at about 260 nm. The Y2O3:Eu3+nanoparticles were then used to fabricate the inorganic–organic hybrid nanostructures with thenoyltrifluoroacetone (TTA). The Y2O3:Eu3+–TTA hybrid nanostructures exhibited a new strong excitation band ranging from 280 nm to 390 nm peaking at about 368 nm. This new excitation band was attributed to the energy transfer mechanism of the Y2O3:Eu3+–TTA hybrid system. It is interesting to note that this energy transfer mechanism had a close interaction with the Eu–O excitation of Y2O3:Eu3+nanoparticles. The phase structures, chemical bonding information, microstructural characteristics and luminescence properties were investigated.