论文标题
掺杂型腺含量钒酸盐纳米颗粒的脉冲激光沉积在玻璃和硅底物上
Pulsed laser deposition of the doped lanthanum vanadate nanoparticles on glass and silicon substrates
论文作者
论文摘要
首次在玻璃和硅底物上通过脉冲激光沉积法成功生长了源自灯笼糊状纳米颗粒的薄膜。膜的形态和厚度取决于底物和许多脉冲。这些薄膜的厚度为27至220 nm，由最小20 nm的非常小的颗粒形成，还可以包含具有40至60 nm尺寸的单个纳米颗粒，有时还包含纳米颗粒的团聚。已经研究和讨论了样品的光谱特性。沉积在硅底物上的钒酸盐膜导致可见范围内的抗反射特性出现。所研究膜的发光光谱由欧洲离子中的F-F过渡引起的狭窄线组成。对于玻璃基板上的样品，宽玻璃发射的宽带也有助于光谱。当考虑发光转换器时，允许获得有望进行应用的薄膜的最佳实验条件。
Thin films from the lanthanum vanadate nanoparticles were successfully grown by pulsed laser deposition method on glass and silicon substrates for the first time. Morphology and thickness of the films depend on a type of substrate and a number of pulses. The films are of 27 to 220 nm thickness and formed by very small particles up to 20 nm and also can contain single nanoparticles with dimensions 40 to 60 nm and sometimes agglomerates of nanoparticles. Spectral properties of the samples have been investigated and discussed. The vanadate films deposited on the silicon substrates lead to appearance of antireflection properties in the visible range. Luminescence spectra of the investigated films consist of narrow lines caused by f-f transitions in the europium ions. For the samples on glass substrates the wide bands of glass emission are also contributed to the spectra. The optimal experimental conditions those allowed to obtain films promising for applications as luminescent converters are considered.
