Dynamic approaches to unequilibrium defects dominating the properties of ceramic materials

• Project/Area Number: 22760507
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Inorganic materials/Physical properties
• Research Institution: Yamagata University
• Principal Investigator: MATSUSHIMA Yuta 山形大学, 大学院・理工学研究科, 准教授 (30323744)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 機能性セラミックス / 酸素空孔 / 動的評価 / 紫外・可視吸収分光 / 半導体酸化物 / チタン酸バリウム / 特性制御 / 透明薄膜 / 水溶性前駆体 / ホール効果測定 / 水系ディップコート法

Research Abstract

The properties useful in industrial applications of ceramic materials are strongly dependent on the defects induced in the unequilibrium conditions. In this work, those defects were characterized in terms of dynamic approaches using UV-Vis. spectroscopy, XRD and XAFS. The thorough investigation revealed that the conduction mechanism of semiconductive oxides and the doping phenomena of doped BaTiO_3. The knowledge about the unequilibrium defects will be useful for innovating a new material using defect-control.

Research Products

• [Presentation] Control on the doping site in BaTiO_3 with a water-soluble precursor (2012)
  • Author(s): Y.Matsushima, K.Iwase, S.Kasuga
  • Organizer: 4^<th> International Congress on Ceramics
  • Place of Presentation: Chicago, USA
  • Year and Date: 2012-07-16
• [Presentation] 希土類元素をプローブに用いたチタン酸バリウムの相転移現象のEXAFS解析 (2012)
  • Author(s): 松嶋雄太, 岩瀬勝彦, 春日慎之介
  • Organizer: 日本セラミックス協会2012年年会
  • Place of Presentation: 京都大学吉田キャンパス
  • Year and Date: 2012-03-19
• [Presentation] 水溶性前駆体法により作製したHoドープチタン酸バリウムにおけるドープ挙動の解明 (2011)
  • Author(s): 春日慎之介, 岩瀬勝彦, 川井貴裕, 松嶋雄太
  • Organizer: 日本セラミックス協会第24回秋季シンポジウム
  • Place of Presentation: 北海道大学(札幌キャンパス)
  • Year and Date: 2011-09-08
• [Presentation] 光学・電気特性評価による動作環境下のガスセンサ材料状態の解明 (2011)
  • Author(s): 松嶋雄太, 盛合裕貴, 豊田亮祐, 川井貴裕
  • Organizer: 日本セラミックス協会第24回秋季シンポジウム
  • Place of Presentation: 北海道大学(札幌キャンパス)
  • Year and Date: 2011-09-07
• [Presentation] 水溶液原料を用いたドープチタン酸バリウムの合成 (2011)
  • Author(s): 松嶋雄太, 春日慎之介, 岩瀬勝彦, 川井貴裕
  • Organizer: 電気化学会78回大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2011-03-31
• [Presentation] 水溶性前駆体を原料に用いたHoドープチタン酸バリウムの合成とドープ挙動に関する研究 (2011)
  • Author(s): 春日慎之介, 岩瀬勝彦, 川井貴裕, 松嶋雄太
  • Organizer: 日本セラミックス協会2011年年会
  • Place of Presentation: 静岡大学
  • Year and Date: 2011-03-18
• [Presentation] Change in optical and electrical properties of semiconductive oxides under operating conditions of gas sensors (2011)
  • Author(s): Y. Matsushima, H. Mori-ai, R. Toyoda, T. Kawai
  • Organizer: 2^<th> Conference of the European Ceramic Society
  • Place of Presentation: Stockholm, Sweden(2011)
• [Presentation] Investigation of doping phenomena of Ho-doped BaTiO_3 with awater-based sol-gel method (2011)
  • Author(s): S.Kasuga, K.Iwase, T.Kawai, Y.Matsushima
  • Organizer: 12th Conference of the European Ceramic Society
  • Place of Presentation: Stockholm, Sweden
• [Presentation] Change in optical and electrical properties of semiconductive oxides under operating conditions of gas sensors (2011)
  • Author(s): Y.Matsushima, H.Mori-ai, R.Toyoda, T.Kawai
  • Organizer: 12th Conference of the European Ceramic Society
  • Place of Presentation: Stockholm, Sweden
• [Presentation] Doping phenomena of Ho in BaTiO_3 prepared by solid state reaction and water-based sol-gel process (2010)
  • Author(s): S.Kasuga, T.Kawai, Y.Matsushima
  • Organizer: The International Chemical Congress of Pacific Basin Societies (Pacifichem2010)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 2010-12-18
• [Presentation] Transparent BaTiO_3 films prepared by dip-coating from aqueous solution (2010)
  • Author(s): K.Iwase, T.Kawai, Y.Matsushima
  • Organizer: The International Chemical Congress of Pacific Basin Societies (Pacifichem2010)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 2010-12-16
• [Presentation] Transparent thin-films of semiconductive oxides by solution-based processes, and the optical and electrical properties (2010)
  • Author(s): Y. Matsushima, K. Iwase, T. Kawai
  • Organizer: The International Chemical Congress of Pacific Basin Societies (Pacifichem2010)
  • Place of Presentation: Honolulu, USA(2010)
  • Year and Date: 2010-12-15
• [Presentation] Transparent thin-films of semiconductive oxides by solution-based processes, and the optical and electrical properties (2010)
  • Author(s): Y.Matsushima, K.Iwase, T.Kawai
  • Organizer: The International Chemical Congress of Pacific Basin Societies (Pacifichem2010)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 2010-12-15
• [Presentation] Doped and non-doped barium titanate prepared from a new water-based precursor-solution (2010)
  • Author(s): Y. Matsushima, K. Iwase, S. Kasuga, T. Kawai
  • Organizer: 3^<rd> International congress on ceramics
  • Place of Presentation: 大阪国際会議場(グランキューブ大阪)(大阪)
  • Year and Date: 2010-11-18
• [Presentation] Doped and non-doped barium titanate prepared from a new water-based precursor-solution (2010)
  • Author(s): Y.Matsushima, K.Iwase, S.Kasuga, T.Kawai
  • Organizer: 3^<rd> International congress on ceramics
  • Place of Presentation: Osaka, Japan
  • Year and Date: 2010-11-18
• [Presentation] Change in optical and electrical properties of semiconductive oxides under the operating conditions of gas sensors (2010)
  • Author(s): Y.Matsushima, H.Mori-ai, R.Toyoda, T.Kawai
  • Organizer: 3^<rd> International congress on ceramics
  • Place of Presentation: Osaka, Japan
  • Year and Date: 2010-11-17
• [Presentation] 水溶性チタン酸バリウム前駆体の合成と水系ディップコート法により作製した透光性薄膜の特性 (2010)
  • Author(s): 岩瀬勝彦, 川井貴裕, 松嶋雄太
  • Organizer: 平成22年度日本セラミックス協会東北北海道支部研究発表会&第30回基礎科学部会東北北海道支部地区懇話会
  • Place of Presentation: 東北大学・片平さくらホール
  • Year and Date: 2010-10-29
• [Presentation] ガス雰囲気処理に対する酸化亜鉛透明薄膜の光学および電気特性変化 (2010)
  • Author(s): 豊田亮祐, 盛合裕貴, 川井貴裕, 松嶋雄太
  • Organizer: 平成22年度日本セラミックス協会東北北海道支部研究発表会&第30回基礎科学部会東北北海道支部地区懇話会
  • Place of Presentation: 東北大学・片平さくらホール
  • Year and Date: 2010-10-29
• [Presentation] 水系前駆体溶液より作製したチタン酸バリウムの特性 (2010)
  • Author(s): 松嶋雄太, 岩瀬勝彦, 春日慎之介, 川井貴裕
  • Organizer: 平成22年度化学系学協会東北大会
  • Place of Presentation: 岩手大学工学部
  • Year and Date: 2010-09-26
• [Presentation] Investigation of doping phenomena of Ho-doped BaTiO_3 with a water-based sol-gel method (2010)
  • Author(s): S. Kasuga, K. Iwase, T. Kawai, Y. Matsushima
  • Organizer: 12^<th> Conference of the European Ceramic Society
  • Place of Presentation: Stockholm, Sweden(2011)
• [Patent(Industrial Property Rights)] チタン酸バリウムの前駆体水溶液、水溶性前駆体およびその製造方法 (2010)
  • Inventor(s): 松嶋雄太, 岩瀬勝彦, 川井貴裕
  • Industrial Property Rights Holder: 松嶋雄太, 岩瀬勝彦
  • Filing Date: 2010-09-17
• [Patent(Industrial Property Rights)] チタン酸バリウムの前駆体水溶液、水溶性前駆体およびその製造方法 (2010)
  • Inventor(s): 松嶋雄太, 岩瀬勝彦, 川井貴裕
  • Industrial Property Rights Holder: 松嶋雄太, 岩瀬勝彦
  • Industrial Property Number: 2010-227957
  • Filing Date: 2010-09-17