Triply doped Y3Al5O12: Ce3+, Pr3+, Cr3+ phosphors are prepared by solid state reaction. The emission spectra are enriched in the red region with the luminescence of both Pr3+ and Cr3+ through Ce3+ → Cr3+ and Ce3+ → Pr3+ → Cr3+ energy transfers. The properties of photoluminescence and fluorescence decay indicates larger macroscopic Ce3+ → Cr3+ transfer rates in the triply doped phosphors in comp...

Visible light-emitting Ce-doped ZnO nanorods [NRs] without a post thermal annealing process were grown by hydrothermal method on a Si (100) substrate at a low temperature of 90°C. The structural investigations of Ce-doped ZnO NRs showed that the Ce3+ ions were successfully incorporated into the ZnO lattice sites without forming unwanted Ce-related compounds or precipitates. The optical investig...

Ce3+-doped and Ce3+/Mn2+ co-doped calcium carbodiimide (CaCN2) phosphors were synthesized from doped carbonate carbon nitride by a solid-state reaction at 700 °C under flowing NH3 using very short time (1 h). The samples characterized powder X-ray diffraction, scanning electron microscopy their diffuse reflectance luminescence properties investigated. Single-doped CaCN2:Ce3+ exhibits blue emiss...

Dielectric crystals doped with Ce3+ , Eu2 +, Sm2 +, and Yb2 + display broadband 5d-to-4f emission, and are candidate solid-state tunable laser materials. The absorption and emission wavelengths, however, are very host-sensitive, and a better understanding of 5d crystal field interactions is needed in order to design high performance materials. The adequacy of a purely ionic model of the crystal...

Related Articles Spectral engineering of LaF3:Ce3+ nanoparticles: The role of Ce3+ in surface sites J. Appl. Phys. 111, 074315 (2012) Determination of the absolute internal quantum efficiency of photoluminescence in GaN co-doped with Si and Zn J. Appl. Phys. 111, 073106 (2012) Deep-level transient spectroscopy and photoluminescence measurements of dissociation energy of the 1.014-eV copper cent...

Manganese materials with attractive optical properties have been proposed for applications in such areas as photonics, light-emitting diodes, and bioimaging. In this paper, we have demonstrated multicolor Mn2+ luminescence in the visible region by controlling Ce3+-Mn2+ energy transfer in rare earth nanocrystals [NCs]. CeF3 and CePO4 NCs doped with Mn2+ have been prepared and can be well dispers...

Transparent MgAlON:Ce fluorescent ceramics with doping content of 0.005, 0.01, and 0.02 at % were fabricated by pressureless sintering. All the samples were dense and large in grain size. Under the excitation of 320 nm UV, the samples emitted blue lights centered around 410 nm. The 0.005 and 0.01 at % Ce3+ doped samples were single phase by XRD detection, and possessed good optical and mechanic...

Cu2+,Ce3+-doped nanostructure TiO2 -coated Nd3+ (TiO2 /Nd3+) were prepared by sol-gel method. TiO2 were synthesized by the sol-gel method using tetra n-butyl orthotitanat (TBT) as a precursor. The prepared nanoparticles characterized by FT-IR, XRD, SEM- EDS and TEM. The XRD showed that the major phase of nanocomposite is anatase. The morphology of the TiO2/Nd3+/Cu2+and TiO2 /Nd3+/Ce3+ microsphe...

This paper discusses the effect of adding reduced erbium-doped ceria nanoparticles (REDC NPs) as a coating on silicon solar cells. Reduced ceria nanoparticles doped with erbium have the advantages of both improving conductivity and optical conversion of solar cells. Oxygen vacancies in ceria nanoparticles reduce Ce4+ to Ce3+ which follow the rule of improving conductivity of solar cells through...

Related Articles Two dimensional ferroelectric domain patterns in Yb3+ optically active LiNbO3 fabricated by direct electron beam writing Appl. Phys. Lett. 102, 042910 (2013) Remanent-polarization-induced enhancement of photoluminescence in Pr3+-doped lead-free ferroelectric (Bi0.5Na0.5)TiO3 ceramic Appl. Phys. Lett. 102, 042907 (2013) Optical identification of oxygen vacancy types in SnO2 nano...