The chemical bath deposition method was used to synthesize Eu-doped ZnO on p-type (100) silicon. SEM image shows the formation of micropod-like ZnO. EDX and XPS measurements showed an increase in Eu concentration up 2.54% simultaneous presence Eu3+ Eu2+. XRD analysis confirmed that interstitial ions distorted four tetrahedral bonds, substitution Eu2+ increased c lattice parameter. Only 5D0?7F2 ...

Mutation at either of two genetic loci (Eu2 or Eu3) in soybean (Glycine max [L.] Merr.) results in a pleiotropic elimination of the activity of both major urease isozymes. Surprisingly, the phenotype of a phylloplane bacterium, Methylobacterium mesophilicum, living on the leaves of eu2/eu2 or eu3-el/eu3-el mutants is also affected by these plant mutations. The bacteria isolated from leaves of t...

Introduction of the metallic nanoparticles (NPs) in the bulk glass received a large interest due to their versatile applications. The effect of silver NPs on optical properties of the Eu3+-doped zinc tellurite glasses is presented for the first time. Glass samples are prepared by melt-quenching technique. The surface plasmon absorption bands of silver NPs are recorded in the visible ...

Written by G. Jeffrey Taylor Hawai'i Institute of Geophysics and Planetology Studies have inferred that the oxidation state of Martian basaltic meteorites (the shergottites) is correlated with diagnostic geochemical parameters. For example, Meenakshi Wadhwa (Field Museum, Chicago) showed that as the ratio of triply-charged europium to doubly-charged europium (Eu3+/Eu2+) increases in a group of ...

Rare-earth-doped GdPO4 nanoparticles have recently attracted much scientific interest due to the simultaneous optical and magnetic properties of these materials their possible application in bio-imaging. Herein, we report hydrothermal synthesis GdPO4:Eu3+ by varying different parameters: pH, <Gd>:<P> molar ratio, Eu3+ concentration. It turned out that content synthesized had little ...

In this work, YBO3 phosphors doped with Ln3+ (Ce3+, Tb3+, Eu3+) ions were synthesized by a facile hydrothermal method using high temperature and pressure environment. Structural property characterizations show all the samples have similar spherical morphology hexagonal crystal structure good crystallinity. PL spectra CIE calculation that color of can be easily controlled species atomic content ...

Karakterisasi sistem gelas boron trioxide yang didoping oleh ion aktif Europium (Eu3+) telah dilakukan dengan menggunakan metode Melt-Quenching. Komposisi dibuat mengikuti rumus kimia 60B2O3 – 20TeO2 10Na2O 10Gd2O3 (% mol) kemurnian diatas 99%. Pengujian sifat fisis Archimedes. struktur X-Ray Diffraction (XRD) dan Fourier-transformed infrared (FTIR). optik spektrofotometer UV-Vis. Hasil XRD men...