Now showing items 571-573 of 573
Intense visible photoluminescence in Ba(Zr0.25Ti0.75)O-3 thin films
(Applied Physics Letters, 2007-01-01) [Artigo]
Photoluminescence at room temperature in Ba(Zr0.25Ti0.75)O-3 thin films was explained by the degree of structural order-disorder. Ultraviolet-visible absorption spectroscopy, photoluminescence, and first principles quantum ...
Nature of defects for bismuth layered thin films grown on Pt electrodes
(Applied Physics Letters, 2007-02-19) [Artigo]
The authors investigated the influence of defects on the piezoelectric and dielectric properties of Bi4Ti3O12 (BIT), SrBi4Ti4O15 (SBTi) and CaBi4Ti4O15 (CBTi144) thin films by x-ray photoemission spectroscopy measurements. ...
Mechanisms behind blue, green, and red photoluminescence emissions in CaWO4 and CaMoO4 powders
(Applied Physics Letters, 2007-07-30) [Artigo]
A combined experimental and theoretical study was conducted to analyze the photoluminescence (PL) properties of ordered and disordered CaWO4 (CW) and CaMoO4 (CM) powders. Two mechanisms were found to be responsible for ...