Optical and luminescent properties of the lead and barium molybdates

Effect of lead salts on phase, morphologies and photoluminescence of nanocrystalline PbMoO4 and PbWO4 synthesized by microwave radiation

“…6a) was determined by photoluminescence spectroscopy at room temperature. The spectra exhibit blue emission at 412 nm attributed to the charge diffusion within the (MoO 4 ) 2− complexes in accordance with the literature [1,19,20].…”

“…Molybdate and tungstate are inorganic compounds which have very interesting properties for applications such as luminescent materials, electrooptic materials, scintillators and catalysts [1,2]. PbMoO 4 and PbWO 4 are classified in these groups and have application in high-energy physics.…”

Effect of process parameters on photophysical properties and barium molybdate phosphors characteristics

“…Table 1 lists methods used for the BaMoO 4 synthesis. In the Czocharalski study [10], the spontaneous crystallization method [11] and the calcinations method by Hitoki [13], high temperatures and long time periods were required for the production of this material. Hasan [14] performed the calcination at a lower temperature (above 450 1C), but the product of the reaction contains an additional phase (BaO 2 Á 8H 2 O).…”

“…Various techniques have been employed to obtain materials similar to BaMoO 4 and are discussed in this study: Czochralski, spontaneous crystallization, the CP method, MAH and calcination methods [10][11][12][13][14][15][16]. Nevertheless, some of these methods have disadvantages with high synthesis temperatures and long reaction times which destroy the morphological homogeneity.…”

Structure and photoluminescence properties of fishbone-like PbMoO4 nanostructures obtained via the surfactant-assisted hydrothermal method

“…The top level of the valence band of the lowest unoccupied states consists of 4d Mo states that are split into two sets of bands with e (primarily Mo 4d) and t (primarily O 2p) symmetries. Thus, the PL emission bands correspond to the electron transitions from the valence O 2p states to the Mo 4d states, which have different symmetries [28] . The UV-Vis absorption spectrum of the fishbone-like PbMoO 4 nanostructures is shown in Fig.…”