Spectroscopic Properties of Er3+-Doped Particles-Containing Phosphate Glasses Fabricated Using the Direct Doping Method

Abstract

The effect of the incorporation of Er2O3-doped particles on the structural and luminescence properties of phosphate glasses was investigated. A series of different Er2O3-doped TiO2, ZnO, and ZrO2 microparticles was synthesized using soft chemistry and then added into various phosphate glasses after the melting at a lower temperature than the melting temperature. The compositional, morphological, and structural analyses of the particles-containing glasses were performed using elemental mapping by field emission-scanning electron microscopy (FE-SEM) with energy dispersive x-ray spectrometry (EDS) and x-ray diffraction (XRD). Additionally, the luminescence spectra and the lifetime values were measured to study the influence of the particles incorporation on the spectroscopic properties of the glasses. From the spectroscopic properties of the glasses with the composition 50P2O5-40SrO-10Na2O, a large amount of the Er2O3-doped particles is thought to dissolve during the glass melting. Conversely, the particles were found to survive in glasses with a composition 90NaPO3-(10 − x)Na2O-xNaF (with x = 0 and 10 mol %) due to their lower processing temperature, thus clearly showing that the direct doping method is a promising technique for the development of new active glasses.

Near-IR Luminescence of Rare-Earth Ions (Er3+, Pr3+, Ho3+, Tm3+) in Titanate–Germanate Glasses under Excitation of Yb3+

“…Numerous inorganic glass materials are fabricated and widely applied industrially. Novel glass host matrices are still developed and must fulfill the rising demand for good-quality optical components and devices such as active optical fibers, solid-state laser sources, broadband near-IR fiber amplifiers, photonic integrated devices, and so on [ 1 , 2 , 3 , 4 ]. Systematic studies clearly demonstrate that positions and spectral linewidths for characteristic luminescence bands of lanthanides ions can be tuned according to the chemical compositions of glass and glass-ceramic matrices and dopant ions [ 5 , 6 , 7 , 8 , 9 ].…”

Highly Sensitive Biosensors Based on Biomolecules and Functional Nanomaterials Depending on the Types of Nanomaterials: A Perspective Review

“…In general, UCNPs are prepared by using lanthanide-doped or actinide-doped transition metals, and the emission of high-energy photons through the absorption of low-energy photons was demonstrated to achieve the upconversion mechanism. Furthermore, UCNPs are suitable for blood analysis directly by using NIR wavelength excitation because they can prevent the autofluorescence problem found with most fluorescent dyes [71,72]. For instance, lanthanide-doped UCNPs were developed as a luminescent probe that is effective for bioimaging and biosensing applications due to its low toxicity and high photo-stability.…”

Incorporation of as-Prepared Eu3+-doped Lanthanum Niobate Nanoparticles in Tellurite Glasses

“…Other phosphate glasses compositions were also used as matrix for direct-doping using a series of different Er 2 O 3 -doped TiO 2 , ZnO, and ZrO 2 microparticles. For glasses with the composition 50P 2 O 5 -40SrO-10Na 2 O, a large amount of the particles is thought to dissolve during the glass melting; however, particles were found to survive in glasses with a composition 90NaPO 3 -(10-x)Na 2 O-xNaF (with x=0 and 10 mol%) due to their lower processing temperature 12 . Direct-doping were also used to prepare an oxyfluorophosphate glass-based composites which exhibit green persistent luminescence (PeL) after being UV charged; in which the method should be modified to limit not only the decomposition of the PeL particles in the glass but also the fluorine evaporation occurring during the glass preparation 13 .…”