2021年6月23日 · The NaYF4:Ln3+ nanoparticles with surface-passivated core–shell structures exhibit intense X-ray-charged PersL and narrow-band emissions tunable from 480 to 1060 nm.

2022年3月8日 · NaYF 4 is one of the most widely used host lattices for UCNPs and is generally considered to yield the most efficient inorganic upconverting crystalline materials 7 with …

2023年5月24日 · In this study, (NaYF 4:Yb,Er) microparticles dispersed in water and ethanol, were used to generate 540 nm visible light from 980 nm infrared light by means of a nonlinear …

NaYF4 crystallizes in the hexagonal P-6 space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate …

2017年1月20日 · A spectroscopic study of NaYF4 powders doped with several different concns. of Er3+, Tm3+ and/or Yb3+ is described. Rare earth-doped NaYF4 is known to be a very efficient …

In this paper, we focus on -NaYF 4 nanorods in order to provide a detailed description of their chemical composition and microstructure.

NaYF4 is Fluorite-derived structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Na1+ is bonded in a body-centered cubic geometry to eight …

Upconversion core/shell nanocrystals with different mean sizes ranging from 15 to 45 nm were prepared via a modified synthesis procedure based on anhydrous rare-earth acetates.

4 天之前 · We incorporated the NaYF4:Yb3+/Er3+ NR into a mesoporous TiO2 film to create NaYF4:Yb3+/Er3+ NR/TiO2 photoanodes for application in dye-sensitized solar cells (DSSCs). …

1972年8月15日 · Studies of the infrared‐pumped visible luminescence of NaYF 4 : Yb, Er show it to have at least twice the visible output of YF 3 : Yb, Er when pumped with a narrow‐band …