Pulsed laser deposition of the LaVO4:Eu, Ca nanoparticles on glass and silicon substrates

Abstract

Thin films from the L VO 4 :Eu,Ca 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 27-220 nm thickness and formed by very small particles (up to 20 nm) and also can contain single nanoparticles with dimensions 40-60 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 Eu 3+ 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.

Targeted delivery of paclitaxel by NL2 peptide‐functionalized on core‐shell LaVO4: Eu3@ poly (levodopa) luminescent nanoparticles

“…Functionalization of nanomaterials increases significantly its targeting properties and leads to considerable progress in the fundamental understanding, diagnosis, and treatment of cancer. Vanadate compounds are widely used matrices for luminescent rare earth (RE) ions dopants as they satisfy the high efficiency of excitation of activator through the matrix 45 . Because of the inherent complexity of the LaVO4: Eu 3 and the safety concerns, these modifications reduce toxicity, enhanced selectivity, and include the capability of tumor imaging.…”