DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2011 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

DF: Fachverband Dielektrische Festkörper

DF 3: Dielectric and ferroelectric thin films 2

DF 3.7: Talk

Monday, March 14, 2011, 17:10–17:30, MÜL Elch

Piezoelectric properties of BNT-BT epitaxial thin films by laser interferometry — •Mehrdad Baghaie Yazdi1,2, Wook Jo1, Philipp Komissinskiy1, Pavel Klang2, Joachim Hillenbrand1, Robert Schafranek1, Jürgen Rödel1, and Lambert Alff11Technische Universität Darmstadt — 2Technische Universität Wien

The need for environmental friendly, non-hazardous materials have motivated the scientific community to increase their efforts in the development of lead free piezoceramics, as the electronic market faces an ever increasing need for such devices. Thin films of such a promising lead free piezoceramic, (1-x)Bi0.5Na0.5TiO3·xBaTiO3 for x=0.6 , have been deposited using pulsed laser deposition (PLD) on 5% niobium doped SrTiO3(STO:Nb) substrates. The lattice constant of the films was determined using high resolution X-ray diffraction. Out of plane measurements, c=3.89 Å, suggest the growth of a highly epitaxial cubic phase (a=3.90 Å) on STO:Nb (a=3.905 Å). The piezoelectric properties have been studied using an unconventional approach, namely laser interferometry, allowing the determination of d33 in the frequency range from 1 kHz to 1 MHz.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2011 > Dresden