Barium strontium titanate (Ba0.5Sr0.5TiO3or BST (50/50)) thin films were grown on MgO(100) substrates using pulsed laser deposition (PLD). The surface morphology of the thin films was observed using a scanning probe microscope and the grain size was found to be around 100-150nm. The surface roughness is below 5nm for a 250nm thick film. X-ray diffraction (XRD) results revealed that the BST thin films were epitaxially grown on the MgO(100) substrates. Optical transmittance and electro-optic (E-O) properties of the BST thin films were measured using a phase modulation detection method. The BST/MgO configuration was highly transparent in the visible region. The BST film exhibited a predominantly quadratic E-O behavior and the quadratic E-O coefficient was found to be 0.42×10-17m2/V2.
|Number of pages||4|
|Publication status||Published - 7 Sep 2004|
|Event||3rd Asian Meeting on Electroceramics - Singapore, Singapore|
Duration: 7 Dec 2003 → 11 Dec 2003
- BST thin films
ASJC Scopus subject areas
- Ceramics and Composites