title: Cathodoluminescence properties of gadolinium-doped CaMoO4:Eu nanoparticles.
abstract: Gadolinium (Gd(3+)) doped CaMoO4:Eu nanoparticles were prepared via facile auto-combustion route and annealed at 900 °C for ∼4 h. X-ray diffraction study confirms the tetragonal scheelite type of CaMoO4 phase. Low voltage cathodoluminescent (CL) measurement were performed for Gd(3+) (0 and 10 at.%) co-doped CaMoO4:Eu as a function of accelerating voltage and filament current. CL studies confirm that Gd(3+) co-doped CaMoO4:Eu has a visible emission peak centered at ∼615 nm and a broad host emission band in the range 380-550 nm. Commission Internationale de L'Eclairage chromaticity diagram co-ordinates of Gd(3+) co-doped CaMoO4:Eu are found to be in reddish orange region as was observed through photoluminescence and CL spectra.
authors.affiliation: Department of Physics, Andhra University, Andhra Pradesh 530003, India. Electronic address: ramkiphysics@gmail.com.
authors.forename: P V
authors.initials: PV
authors.lastname: Ramakrishna
keywords: CIE coordinates; Cathodoluminescence; Penetration depth; X-ray diffraction