Luminescence Characteristics of YVO4:Yb3+/Er3+ Nanoparticles

Аннотация

YVO₄:Yb,Er luminescent nanoparticles (NPs) with sizes of 10–700 nm are produced. The use of laser excitation wavelengths of 980 and 257 nm results in the emission of Er³⁺ ions in the spectral region of 527 and 555 nm. No spectral line of Er³⁺ ions is recorded at 660 nm, which is indirect evidence of the low efficiency of nonradiative multiphonon intra-ion transitions and the insensitivity of NPs to luminescence quenchers in an aqueous solution.