Multifunctional Eu3+- and Er3+/Yb3+-doped GdVO4 nanoparticles synthesized by reverse micelle method

Structural, optical and special spectral changes of Dy3+ emissions in orthovanadates

This paper reports on the structural, optical and photometric characterization of yttrium gadolinium orthovanadates (Y_1−xGd_xVO₄) doped with Dy³⁺ for white emission in solid state lighting.

New insight into rare-earth doped gadolinium molybdate nanophosphor assisted broad spectral converters from UV to NIR for silicon solar cells

Demonstration of novel rare-earth doped gadolinium molybdate nanophosphor assisted broad spectral converters from UV to NIR for Si-solar cell application.

Influence of Y3+, Gd3+, and Lu3+ co-doping on the phase and luminescence properties of monoclinic Eu:LaVO4 particles

Enhancement of the luminescence properties of Eu³⁺ doped monoclinic LaVO₄ nanoparticles was investigated through co-doping with Y³⁺, Gd³⁺ and Lu³⁺ ions.

An up-converting HAP@β-TCP nanocomposite activated with Er3+/Yb3+ ion pairs for bio-related applications

A HAP@β-TCP nanocomposite doped with Er³⁺/Yb³⁺ ions was prepared and its cytotoxicity was tested on canine osteosarcoma and murine macrophage cells. Metronidazole release from the nanocomposite was studied and its up-conversion properties measured.

Upconversion NaYF4:Yb:Er nanoparticles co-doped with Gd3+ and Nd3+ for thermometry on the nanoscale

The upconversion luminescence properties of oleic acid capped NaYF₄:Gd³⁺:Yb³⁺:Er³⁺ upconversion nanoparticles (UCNP) with pure β crystal phase and Nd³⁺ ions as an additional sensitizer were studied in the temperature range of 288 K < T < 328 K.

Temperature sensing from the emission rise times of Eu(3+) in SrY2O4

The emission rise time of Eu(3+)-doped SrY2O4 was investigated in the temperature range of 20-200 °C for application in luminescence thermometry. After pulsed excitation, the energy transfer between the adjacent Eu(3+) ions causes a emission build-up from the (5)D0 level of Eu(3+) and a notable emission rise occurs prior to decay. The emission rise-time values linearly decrease with temperature, providing an absolute sensitivity of 0.66 μs °C(-1) and a maximal relative sensitivity of 5.53% °C(-1) at 200 °C, for samples containing 0.5 at% Eu(3+) ions. It is shown that the time after excitation at which emission reaches a maximum (time-to-max) can also be exploited for temperature sensing, since it is easily measurable and shows a linear dependence with temperature.