M Mehdi Hejazi

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We have studied the effect of deposition parameters on the microstructure, crystallinity, and ferroelectric properties of 0.88(Bi(0.5)Na(0.5))TiO(3)-0.08(Bi(0.5)K(0.5))TiO(3)¿0.04BaTiO(3) thin films grown on SrRuO(3)-coated SrTiO(3) substrates by pulsed laser deposition. The parameters studied were the repetition rates, substrate temperatures, oxygen(More)
This paper discusses the fabrication and characterization of a single-element ultrasonic transducer with a lead-free piezoelectric active element. A piezoelectric ceramic with composition of 0.88Bi(0.5)Na(0.5)TiO(3)-0.08Bi(0.5)K(0.5)TiO(3)- 0.04Bi(0.5)Li(0.5)TiO(3) was chosen as the active element of the transducer. This composition exhibited a thickness(More)
MO3 (M = Mo, W) or VI-VI binary compounds are important semiconducting oxides that show great promise for a variety of applications. In an effort to tune and enhance their properties in a systematic manner we have applied a designing strategy to deliberately introduce organic linker molecules in these perovskite-like crystal lattices. This approach has led(More)
We have studied the effect of deposition parameters on the microstructure and ferroelectric properties of pulsed laser deposited 0.88(Bi<inf>0.5</inf>Na<inf>0.5</inf>)TiO<inf>3</inf>-0.08(Bi<inf>0.5</inf>K<inf>0.5</inf>)TiO<inf>3</inf>-0.04BaTiO<inf>3</inf> thin films on SrRuO<inf>3</inf> coated SrTiO<inf>3</inf> substrates. The films were deposited at(More)
We have studied the effect of laser repetition rate on the microstructure, crystallographic orientation, dielectric and ferroelectric properties of pulsed laser deposited 0.94(Bi<inf>0.5</inf>Na<inf>0.5</inf>)TiO<inf>3</inf>-0.04(Bi<inf>0.5</inf>K<inf>0.5</inf>)TiO<inf>3</inf>-0.02BaTiO<inf>3</inf> thin films on SrRuO<inf>3</inf> coated SrTiO<inf>3</inf>(More)
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