Wang Xiaojing, Yang Yi, Chen Nan, Liu Bingfa, Liu Guihua
J Nanosci Nanotechnol. 2016 Apr;16(4):3729-34. doi: 10.1166/jnn.2016.12339.
Lanthanide doped inorganic-organic hybrid nanostructures have received much attention in recent years due to their strong luminescence sensitized by organic ligands via an energy transfer route. In this work, an ion exchange method was used to prepare Eu3+ doped LaF3 based inorganic-organic hybrid nanostructures with organic ligands. The undoped LaF3 nanoparticles were first synthesized by a hydrothermal method, and Eu3+ ions were then ion exchanged into these LaF. nanoparticles to form the Eu3+ doped LaF3 nanoparticles, which were then used to prepare the inorganic-organic hybrid nanostructures with benzoic acid and 2-thenoyltrifluoroacetone. As a result of the luminescence sensitization, strong luminescence was observed in these inorganic-organic hybrid nanostructures, and the luminescence enhancement was over 40 times. Dependence of the luminescence of the hybrid nanostructures on the doping concentration and amount of organic ligands was studied in detail, and optimization was conducted to obtain the maximum luminescence for the hybrid nanostructures.
近年来，镧系元素掺杂的无机-有机杂化纳米结构因其通过能量转移途径被有机配体敏化而具有强烈的发光特性而备受关注。在这项工作中，采用离子交换法制备了含有有机配体的Eu3+掺杂的LaF3基无机-有机杂化纳米结构。首先通过水热法合成未掺杂的LaF3纳米颗粒，然后将Eu3+离子离子交换到这些LaF3纳米颗粒中形成Eu3+掺杂的LaF3纳米颗粒，接着用苯甲酸和2-噻吩甲酰三氟丙酮制备无机-有机杂化纳米结构。由于发光敏化作用，在这些无机-有机杂化纳米结构中观察到强烈的发光，发光增强超过40倍。详细研究了杂化纳米结构的发光对掺杂浓度和有机配体用量的依赖性，并进行了优化以获得杂化纳米结构的最大发光。
