Structural and electrical properties of barium titanate (BaTiO3) thin films obtained by spray pyrolysis method

• Autorzy: Kumbhar S. S. , Mahadik M. A. , Chougule P. K. , Mohite V. S. , Hunge Y. M. , Rajpure K. Y. , Moholkar A. V. , Bhosale C. H.

Identyfikatory

DOI

10.1515/msp-2015-0107

• Języki publikacji: EN

Abstrakty

EN

Barium titanate (BaTiO3) thin films have been prepared using the spray pyrolysis method. The films were deposited onto a glass substrate at varying substrate temperature ranging from 250 to 350 degrees C with the interval of 50 degrees C. The structural, morphological, electrical and dielectric properties of the deposited films have been studied. The X-ray diffraction pattern confirmed the polycrystalline nature of the films with a cubic crystal structure. X-ray photoelectron spectroscopy (XPS) showed a good agreement of the thin films stoichiometry with (BaTiO3). A presence of Ba, Ti and O in the BaTiO3 thin films was observed by energy dispersive X-ray analysis. The scanning electron microscopy (SEM) showed the heterogeneous distribution of cubical grains all over the substrate. The grain size decreased with an increase in substrate temperature. The dielectric constant and dielectric loss showed the dispersion behaviour as a function of frequency, measured in the frequency range of 20 Hz to 1 MHz. The AC conductivity (sigma(ac)) measurement showed the linear nature of obtained films, which confirms conduction mechanism due to small polarons. Impedance spectroscopy has been used to study the electrical behaviour of BaTiO3 ferroelectric thin films. The ferroelectric hysteresis loop has been recorded at room temperature.

Słowa kluczowe

EN

BaTiO3; thin films; structural properties; dielectric properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2015
• Tom: Vol. 33, No. 4
• Strony: 852--861
• Opis fizyczny: Bibliogr. 39 poz., rys., tab.

Twórcy

autor

Kumbhar S. S.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Mahadik M. A.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Chougule P. K.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Mohite V. S.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Hunge Y. M.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Rajpure K. Y.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Moholkar A. V.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

autor

Bhosale C. H.

• Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India.

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