Synthesis and ferroelectric properties of Sr- and Nb-codoped Bi4-xSrxTi3-xNbxO12 thin films by sol-gel method

Hirofumi Matsuda, Takashi Iijima, Hiroshi Uchida, Isao Okada, Takayuki Watanabe, Hiroshi Funakubo

研究成果: ジャーナルへの寄稿Conference article

抄録

Ferroelectric Bi4Ti3O12 (BIT) thin films were modified by the substitution of Sr2+ ions for Bi3+ ions and of Nb5+ for Ti4+ (codoping) by spin-coating and decomposition of chemical solutions of metal-alkoxide materials (the nominal compositions of Bi4-xSrxTi3-xNbxO12 where x = 0.0, 0.5, 1.0, 1.5). Single-phase thin films were crystallized above 550°C with BIT-type structure. The ferroelectric properties were found, though, with the values of Pr = 10 μC/cm2, Ec = 100 kV/cm, εr = 300, and tanδ<5% for Bi3.5Sr0.5Ti2.5Nb0.5O12 (x = 0.5) annealed at 650°C. Perhaps due to the lowering of the Curie temperature with increasing x, the maximum value of εr increased.

元の言語英語
ページ(範囲)107-111
ページ数5
ジャーナルMaterials Research Society Symposium - Proceedings
688
出版物ステータス出版済み - 1 1 2002
外部発表Yes
イベントFerroelectric Thin Films X - Boston, MA, 米国
継続期間: 11 25 200111 29 2001

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Sol-gel process
Ferroelectric materials
gels
Ions
Thin films
Ferroelectric thin films
alkoxides
Spin coating
synthesis
Curie temperature
thin films
coating
ions
Substitution reactions
Metals
substitutes
Decomposition
decomposition
Chemical analysis
metals

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Synthesis and ferroelectric properties of Sr- and Nb-codoped Bi4-xSrxTi3-xNbxO12 thin films by sol-gel method. / Matsuda, Hirofumi; Iijima, Takashi; Uchida, Hiroshi; Okada, Isao; Watanabe, Takayuki; Funakubo, Hiroshi.

:: Materials Research Society Symposium - Proceedings, 巻 688, 01.01.2002, p. 107-111.

研究成果: ジャーナルへの寄稿Conference article

Matsuda, Hirofumi ; Iijima, Takashi ; Uchida, Hiroshi ; Okada, Isao ; Watanabe, Takayuki ; Funakubo, Hiroshi. / Synthesis and ferroelectric properties of Sr- and Nb-codoped Bi4-xSrxTi3-xNbxO12 thin films by sol-gel method. :: Materials Research Society Symposium - Proceedings. 2002 ; 巻 688. pp. 107-111.
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title = "Synthesis and ferroelectric properties of Sr- and Nb-codoped Bi4-xSrxTi3-xNbxO12 thin films by sol-gel method",
abstract = "Ferroelectric Bi4Ti3O12 (BIT) thin films were modified by the substitution of Sr2+ ions for Bi3+ ions and of Nb5+ for Ti4+ (codoping) by spin-coating and decomposition of chemical solutions of metal-alkoxide materials (the nominal compositions of Bi4-xSrxTi3-xNbxO12 where x = 0.0, 0.5, 1.0, 1.5). Single-phase thin films were crystallized above 550°C with BIT-type structure. The ferroelectric properties were found, though, with the values of Pr = 10 μC/cm2, Ec = 100 kV/cm, εr = 300, and tanδ<5{\%} for Bi3.5Sr0.5Ti2.5Nb0.5O12 (x = 0.5) annealed at 650°C. Perhaps due to the lowering of the Curie temperature with increasing x, the maximum value of εr increased.",
author = "Hirofumi Matsuda and Takashi Iijima and Hiroshi Uchida and Isao Okada and Takayuki Watanabe and Hiroshi Funakubo",
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T1 - Synthesis and ferroelectric properties of Sr- and Nb-codoped Bi4-xSrxTi3-xNbxO12 thin films by sol-gel method

AU - Matsuda, Hirofumi

AU - Iijima, Takashi

AU - Uchida, Hiroshi

AU - Okada, Isao

AU - Watanabe, Takayuki

AU - Funakubo, Hiroshi

PY - 2002/1/1

Y1 - 2002/1/1

N2 - Ferroelectric Bi4Ti3O12 (BIT) thin films were modified by the substitution of Sr2+ ions for Bi3+ ions and of Nb5+ for Ti4+ (codoping) by spin-coating and decomposition of chemical solutions of metal-alkoxide materials (the nominal compositions of Bi4-xSrxTi3-xNbxO12 where x = 0.0, 0.5, 1.0, 1.5). Single-phase thin films were crystallized above 550°C with BIT-type structure. The ferroelectric properties were found, though, with the values of Pr = 10 μC/cm2, Ec = 100 kV/cm, εr = 300, and tanδ<5% for Bi3.5Sr0.5Ti2.5Nb0.5O12 (x = 0.5) annealed at 650°C. Perhaps due to the lowering of the Curie temperature with increasing x, the maximum value of εr increased.

AB - Ferroelectric Bi4Ti3O12 (BIT) thin films were modified by the substitution of Sr2+ ions for Bi3+ ions and of Nb5+ for Ti4+ (codoping) by spin-coating and decomposition of chemical solutions of metal-alkoxide materials (the nominal compositions of Bi4-xSrxTi3-xNbxO12 where x = 0.0, 0.5, 1.0, 1.5). Single-phase thin films were crystallized above 550°C with BIT-type structure. The ferroelectric properties were found, though, with the values of Pr = 10 μC/cm2, Ec = 100 kV/cm, εr = 300, and tanδ<5% for Bi3.5Sr0.5Ti2.5Nb0.5O12 (x = 0.5) annealed at 650°C. Perhaps due to the lowering of the Curie temperature with increasing x, the maximum value of εr increased.

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