Fabrication and Luminescence of Molybdate Films Prepared by Cell Electrochemical Method at Room Temperature

• Published in: Ferroelectrics Vol. 357; no. 1; pp. 48 - 52
• Main Authors: Chen, Lian-ping, Xiao, Ding-quan, Yu, Ping, Jin, Xiao-ling, Yang, Zu-nian
• Format: Journal Article Conference Proceeding
• Language: English
• Published: London Taylor & Francis Group 01.01.2007; Taylor and Francis
• Subjects: Cell electrochemical method; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Dielectric thin films; Dielectrics, piezoelectrics, and ferroelectrics and their properties; Exact sciences and technology; Insulators; luminescence; molybdate; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of specific thin films; Physics; thin film; Grain size; Scanning electron microscopy; Scheelite structure; Tetragonal lattices; Photoluminescence; Polycrystals; XRD; Molybdates; Cell electrochemical method; Thin films; luminescence; molybdate; Transition elements; Electrodeposition; thin film
• ISSN: 0015-0193; 1563-5112
• DOI: 10.1080/00150190701527639

Polycrystalline alkaline earth molybdate films, such as BaMoO 4 , SrMoO 4 and CaMoO 4 , have been prepared by cell electrochemical method on molybdenum substrates in alkaline solutions at room temperature respectively. XRD patterns reveal that the films are well crystallized with single tetragonal scheelite structure. SEM observation shows that the grains of the films have regular pyramidal shape and the size of the grains is about 1-2 μm. Photoluminescence measurements at room temperature demonstrates that CaMoO 4 film exhibits single green emission at 510 nm, and SrMoO 4 film at 520 nm respectively at the excitation of 220 nm, and BaMoO 4 film shows no emission.