Structural and electronic properties of β-NaYF4 and β-NaYF4:Ce3+
2020年1月1日 · In the present paper, we performed the state-of-the-art ab initio electronic and atomic structure calculations for pure and Ce-doped NaYF 4 crystals.
Fabrication and characterization of up-converting β-NaYF4…
2020年9月4日 · The results showed that the synthesized NaYF 4:Er 3+,Yb 3+ @NaYF 4 core–shell nanoparticles have roughly spherical shape, pure hexagonal β phase with core size …
New method of beta-NaYF4: Yb3+, Er3+ synthesis by using beta ...
2015年10月1日 · Beta-NaYF4: Yb 3+, Er 3+ was prepared by new method using beta-cyclodextrin. Beta-cyclodextrin prevents the pyrohydrolysis and allows to obtain pure samples. …
Size- and Phase-Controlled Synthesis of Monodisperse NaYF4…
2007年8月24日 · Monodisperse α-NaYF 4:Yb,Er and β-NaYF 4:Yb,Er nanocrystals with controlled size, chemical composition, and surface state were synthesized from trifluoroacetate …
Average and Local Crystal Structure of β-Er:Yb:NaYF4 …
2017年7月21日 · The average and local structures of ∼22 nm β-Er:Yb:NaYF 4 upconverting nanocrystals were probed using a dual-space approach combining Rietveld and pair …
β-NaYF4 and β-NaYF4:Eu3+ Microstructures: Morphology Control …
2009年1月20日 · β-NaYF 4 hexagonal microprisms and microrods with different aspect ratios have been prepared via a simple hydrothermal route. X-ray diffraction (XRD), scanning …
Synthesis and spectroscopic analysis of Ce3+ and Gd3+-doped NaYF4…
1 天前 · Ce3+- and Gd3+-activated NaYF4 phosphors were successfully synthesised by this method as could be judged from the typical emission and excitation spectra. Solid-state …
Highly uniform and monodisperse beta-NaYF(4):Ln(3+) (Ln = Eu, …
2007年8月6日 · beta-NaYF4:Ln3+ (Ln = Eu, Tb, Yb/Er, and Yb/Tm) hexagonal microprisms with remarkably uniform morphology and size have been synthesized via a facile hydrothermal …
The Formation of NaYF4 - Wiley Online Library
2023年5月12日 · Here, we follow the synthesis of β-NaYF 4 nanocrystals from α-NaYF 4 precursor particles using in situ small-angle and wide-angle X-ray scattering and ex situ …
Monodisperse, size-tunable and highly efficient β-NaYF4…
Monodisperse, oil-dispersible β-NaYF4:Yb,Er (Tm) up-conversion (UC) luminescent nanospheres (NPs) have been successfully synthesized. The as-prepared NPs show high size-uniformity …