title: Effect of replacement of Ca by Zn on the structure and optical property of CaTiO3:Eu(3+) red phosphor prepared by sol-gel method.
abstract: Eu(3+)-doped calcium titanate red phosphors, Ca(1-x)Znx TiO3:Eu(3+), were prepared by the sol-gel method. The structure of prepared Ca(1-x)Znx TiO3:Eu(3+) phosphors were investigated by X-ray diffraction and infrared spectra. Due to the (5) D0  → (7) F1-3 electron transitions of Eu(3+) ions, photoluminescence spectra showed a red emission at about 619 nm under excitation of 397 nm and 465 nm, respectively. When zinc was added to the host, the luminescent intensity of Ca(1-x)ZnxTiO3:Eu(3+) was markedly improved several fold compared with that of CaTiO3:Eu(3+). Ca0.9Zn0.1TiO3:Eu(3+) also had higher luminescence intensity than the commercially available Y2 O3:Eu(3+) phosphors under UV light excitation.
authors.affiliation: College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China.
authors.forename: Yulong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China.|Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, Chengdu, 610059, China.
authors.forename: Wentao
authors.initials: W
authors.lastname: Zhang
authors.affiliation: College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China.
authors.forename: Peicong
authors.initials: P
authors.lastname: Zhang
authors.affiliation: College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Li
authors.affiliation: College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China.|Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, Chengdu, 610059, China.
authors.forename: Jianping
authors.initials: J
authors.lastname: Long
mesh_terms: D002118:Calcium / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D049408:Luminescent Agents / Q000737:chemistry*; D008163:Luminescent Measurements; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry; D014466:Ultraviolet Rays; D015032:Zinc / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; C009495:titanium dioxide; D005063:Europium; D014025:Titanium; D015032:Zinc; D002118:Calcium
keywords: Zn replacement; calcium titanate; luminescence; red emission; sol-gel