Microstructure and properties of highly elongated (Ba0.5Sr 0.5)TiO3 thin films by applied electric field annealing

Kwang Hwan Cho; Chong Yun Kang; Seok Jin Yoon; Youngpak Lee

doi:10.1016/j.cap.2010.12.031

Microstructure and properties of highly elongated (Ba_0.5Sr _0.5)TiO₃ thin films by applied electric field annealing

Kwang Hwan Cho, Chong Yun Kang, Seok Jin Yoon, Youngpak Lee

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This study examined the effect of applied electric field annealing on the microstructure and microwave properties of Ba_0.5Sr _0.5TiO₃ (BST) thin films grown on LaAlO₃ substrates. The ultraviolet-visible transmission spectra and micro-Raman spectra of these BST thin films revealed the band-gap and lattice vibration to be strongly dependent on annealing with an applied electric field. Based on the structural analyses and microwave properties, the variation in the band-gap, the chemical binding states, and the tunability of the films were attributed to the combined effects of applied electric field annealing in highly elongated BST thin films.

Original language	English
Pages (from-to)	S106-S109
Journal	Current Applied Physics
Volume	11
Issue number	3 SUPPL.
DOIs	https://doi.org/10.1016/j.cap.2010.12.031
Publication status	Published - 2011 May
Externally published	Yes

Keywords

Applied electric field annealing
Ferroelectric
Thin films

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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abstract = "This study examined the effect of applied electric field annealing on the microstructure and microwave properties of Ba0.5Sr 0.5TiO3 (BST) thin films grown on LaAlO3 substrates. The ultraviolet-visible transmission spectra and micro-Raman spectra of these BST thin films revealed the band-gap and lattice vibration to be strongly dependent on annealing with an applied electric field. Based on the structural analyses and microwave properties, the variation in the band-gap, the chemical binding states, and the tunability of the films were attributed to the combined effects of applied electric field annealing in highly elongated BST thin films.",

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AU - Kang, Chong Yun

AU - Yoon, Seok Jin

AU - Lee, Youngpak

PY - 2011/5

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N2 - This study examined the effect of applied electric field annealing on the microstructure and microwave properties of Ba0.5Sr 0.5TiO3 (BST) thin films grown on LaAlO3 substrates. The ultraviolet-visible transmission spectra and micro-Raman spectra of these BST thin films revealed the band-gap and lattice vibration to be strongly dependent on annealing with an applied electric field. Based on the structural analyses and microwave properties, the variation in the band-gap, the chemical binding states, and the tunability of the films were attributed to the combined effects of applied electric field annealing in highly elongated BST thin films.

AB - This study examined the effect of applied electric field annealing on the microstructure and microwave properties of Ba0.5Sr 0.5TiO3 (BST) thin films grown on LaAlO3 substrates. The ultraviolet-visible transmission spectra and micro-Raman spectra of these BST thin films revealed the band-gap and lattice vibration to be strongly dependent on annealing with an applied electric field. Based on the structural analyses and microwave properties, the variation in the band-gap, the chemical binding states, and the tunability of the films were attributed to the combined effects of applied electric field annealing in highly elongated BST thin films.

KW - Applied electric field annealing

KW - Ferroelectric

KW - Thin films

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