论文标题
上转换纳米颗粒及其发光的自组装
Self assembly of upconversion nanoparticles and its luminescence
论文作者
论文摘要
我们报告了向上转换纳米颗粒的2D和3D自组装超晶格的原位形成。这些作为合成的自组装纳米磷剂可以分别使用可调波长的飞秒激光相互作用和NIR 980 nm CW激光源来发射清晰的发光和荧光。已经评估了在FS激光激发能力下发出的每个光子的相对UP转化发光强度和吸收光子的数量对应于每种发光。自组装的纳米颗粒的内部和外部量子产率也已被不同的激光辐照阐明。所有这些结果都指示，这些向上转化的自组装材料的巨大潜在应用可以使它们在电子行业中重要，例如设备制造和生物医学应用。
We report on the in situ formation of 2D and 3D self assembled superlattices of upconverting nanoparticles. These as synthesized self assembled nanophosphors can emit sharp and intence luminescence and fluorescence using tunable wavelength femtosecond laser interaction and NIR 980 nm CW laser source, respectively. The relative up conversion luminescence intensities and the number of absorbed photons per photon emitted under the fs laser excitation power corresponds to each of the luminescence have been evaluated. The internal and external quantum yield of the self-assembled nanoparticles have also been expounded with different laser irradiations. All these results directed that a huge possible potential applications of these upconverting self-assembly materials that can make them significant in the electronic industry, such as for device making and for biomedical applications.
