Synthesis of nano phosphor and application to EL devices

• Project/Area Number: 23350094
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials/Devices
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: HAKUTA Yukiya 独立行政法人産業技術総合研究所, ナノシステム研究部門, 主任研究員 (30250707)
• Co-Investigator(Kenkyū-buntansha): SUE Kiwamu 産業技術総合研究所, ナノシステム研究部門, 主任研究員 (60333845)
• Co-Investigator(Renkei-kenkyūsha): TAKASHIMA Hiroshi 産業技術総合研究所, 光電子研究部門, 主任研究員 (10357353)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥20,150,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥4,650,000); Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2012: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2011: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
• Keywords: 電気・磁気デバイス / ナノ蛍光体 / 水熱合成 / ＥＬデバイス / ペロブスカイト酸化物 / 蛍光体 / ＥＬ素子 / 超臨界水 / 電気・電子材料 / 分散型EL / 超臨界水熱合成 / PL / EL

Research Abstract

We have successfully synthesized rare earth metal ion doped Perovskite type metal oxide nanophosphor via hydrothermal reaction under supercritical water conditions. The size of the particles obtained was in the range from 20 to 40 nm. The quantum efficiency of the nanophosphors was 12 % being comparable to that of bulk materials. The prototype dispersion electroluminescence (EL) element used the nanophosphors obtained showed the typical electroluminescence behaviors under an electric field of 350 V at 1 kHz. Furthermore, EL was observed under an electric field of low voltages by depressing the thickness of the dispersion layer to around 10 micron meter. These results show that metal oxide nanophosphors can be applicable to a novel dispersion electroluminescence device.

Research Products

• [Journal Article] Continuous hydrothermal synthesis of Ca1-xSrxTiO3 solid-solution nanoparticles using a T-type micromixer (2014)
  • Author(s): 小野剛, 陶究, 青木光子, 伯田幸也, 竹林良浩, 依田智, 古屋武, 佐藤敏幸, 日秋俊彦
  • Journal Title: JOURNAL OF SUPERCRITICAL FLUIDS Volume: vol. 85 Pages: 159-164
  • Peer Reviewed
• [Journal Article] Preparation and Photoluminescence Property of Praseodymium doped Calcium Titanate Nanocrystals (2014)
  • Author(s): 南公隆, 伯田幸也, 大原基広, 青木光子, 陶究, 高島浩
  • Journal Title: ECS Transactions Volume: vol. 50, no. 41 Pages: 19-24
  • Peer Reviewed
• [Journal Article] Ultrafast hydrothermal synthesis of Pr-doped Ca0.6Sr0.4TiO3 red phosphor nanoparticles using corrosion resistant microfluidic devices with Ti-lined structure under high-temperature and high-pressure condition (2014)
  • Author(s): Kiwamu Sue, Takafumi Sato, Toshihiko Hiaki, Takeshi Ono, Motohiro Ohara, Takeshi Furuya, Yukiya Hakuta, Mitsuko Aoki
  • Journal Title: Chemical Engineering Journal Volume: 239 Pages: 360-363
  • DOI: 10.1016/j.cej.2013.11.035
  • Peer Reviewed
• [Journal Article] Continuous hydrothermal synthesis of Ca1－xSrxTiO3 solid-solution nanoparticles using a T-type micromixer (2014)
  • Author(s): Takeshi Ono, Kiwamu Sue, Daichi Furuta, Mitsuko Aoki, Yukiya Hakuta, Yoshihiro Takebayashi, Satoshi Yoda, Takeshi Furuya, Toshiyuki Sato, Toshihiko Hiaki
  • Journal Title: The Journal of Supercritical Fluids Volume: 85 Pages: 159-164
  • DOI: 10.1016/j.supflu.2013.11.010
  • Peer Reviewed
• [Journal Article] Ultrafast Hydrothermal Synthesis of Pr-doped Ca0. 6Sr0. 4TiO3 Red Phosphor Nanoparticles using Corrosion Resistant Microfluidic Devices with Ti-lined Structure under High-Temperature and High-Pressure Condition (2013)
  • Author(s): 陶究, 小野剛, 伯田幸也, 高島浩, 浜根大輔, 佐藤剛史, 大原基広, 青木光子, 竹林良浩, 依田智, 日秋俊彦, 古屋武
  • Journal Title: CHEMICAL ENGINEERING JOURNAL Volume: vol. 239 Pages: 360-363
  • Peer Reviewed
• [Journal Article] Preparation and Photoluminescence Property of Praseodymium Doped Calcium Titanate Nanocrystals (2013)
  • Author(s): Kimitaka Minami, Yukiya Hakuta, Motohiro Ohara, Mitusko Aoki, Kiwamu Sue, Hiroshi Takashima
  • Journal Title: ECS Transactions Volume: 50 Issue: 41 Pages: 19-24
  • DOI: 10.1149/05041.0019ecst
  • Peer Reviewed
• [Journal Article] Preparation and PL/EL Property of Rare-Earth Doped Perovskite Metal Oxide Nano Crystals Using Supercritical Water Method (2012)
  • Author(s): 伯田幸也, 南公隆, 青木光子, 大原基広, 陶究, 竹林良浩, 依田智, 高島浩
  • Journal Title: Proccedings of The International Display Workshops Volume: vol. 19 Pages: 1715-1718
  • Peer Reviewed
• [Journal Article] Preparation and Photoluminescence Property of Praseodymium doped Calcium Titanate Nanocrystals (2012)
  • Author(s): Kimitaka Minami, Yukiya Hakuta, Motohiro Ohara, Mitusko Aoki, Kiwamu Sue and Hiroshi Takashima
  • Journal Title: ECS transsitons Volume: 50
  • Peer Reviewed
• [Journal Article] Preparation and PL/EL property of Rare-Earth Doped Perovskite Metal Oxide Nano Crystals Using Supercritical Water Method (2012)
  • Author(s): Yukiya Hakuta, Kimitaka Minami, Mitsuko Aoki, Mototsugu Ohara, Kiwamu Sue,
  • Journal Title: Proceedings of the Internatioal Displya Workshops Volume: 19 Pages: 1715-1718
  • Peer Reviewed
• [Journal Article] Preparation of rare-earth doped zirconia nanoparticles via supercritical hydrothermal method for luminescence properties (2011)
  • Author(s): 伯田幸也, 陶究, 竹林良浩, 依田智, 古屋武, 高島浩
  • Journal Title: Key Engineering Materials Volume: vol. 512-515 Pages: 59-64
  • Peer Reviewed
• [Presentation] Preparation of perovskite nanoparticles with various shapes via hydrothermal phase transformation under supercritical water conditions (2014)
  • Author(s): 伯田幸也
  • Organizer: Joint International Workshop of WFF&WFSM、2014
  • Place of Presentation: 北海道大学
  • Invited
• [Presentation] 超臨界水熱合成法で作成されたBaTiO3ナノ結晶の広帯域光散乱分光 (2013)
  • Author(s): 武貞正樹, 伯田幸也, 高島浩, 小野寺彰
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島
  • Year and Date: 2013-09-25
• [Presentation] 流通式水熱合成法で合成した酸化物ナノ結晶を用いた分散型EL素子の発光特性 (2013)
  • Author(s): 青木光子, 池上敬一, 伯田幸也, 高島浩
  • Organizer: 第74回応用物理学会秋季学術講演会
  • Place of Presentation: 京都
  • Year and Date: 2013-09-18
• [Presentation] 分散型EL用ペロブスカイト型酸化物蛍光体ナノ粒子の合成 (2013)
  • Author(s): 青木光子, 高島浩, 伯田幸也
  • Organizer: 日本セラミックス協会第26回秋季シンポジウム
  • Place of Presentation: 長野
  • Year and Date: 2013-09-05
• [Presentation] ペロブスカイト型酸化物蛍光体ナノ粒子を用いた粉末型EL素子 (2013)
  • Author(s): 中川祐希, 三浦登, 伯田幸也, 青木光子, 高島浩
  • Organizer: 日本セラミックス協会第26回秋季シンポジウム
  • Place of Presentation: 長野
  • Year and Date: 2013-09-05
• [Presentation] 流通式水熱合成法で合成した (2013)
  • Author(s): 青木 光子，池上 敬一，伯田 幸也，高島浩、中川 祐希，三浦 登
  • Organizer: 第７４回応用物理学会秋季学術講演会
  • Place of Presentation: 同志社大学
• [Presentation] Preparation and PL/EL Property of Rare-Earth Doped Perovskite Metal Oxide Nano Crystals Using Supercritical Water Method (2012)
  • Author(s): 伯田幸也, 青木光子, 大原基広, 南公隆, 陶究, 竹林良浩, 依田智, 高島浩
  • Organizer: The 19th International Display Workshops in conjunction with Asia Display 2012
  • Place of Presentation: 京都
  • Year and Date: 2012-12-07
• [Presentation] Preparation and Photoluminescence Property of Praseodymium doped Calcium Titanate Nanocrystals (2012)
  • Author(s): 南公隆, 伯田幸也, 大原基広, 青木光子, 陶究, 高島浩
  • Organizer: Pacific Rim Meeting on Electrochemical and solid-state science 2012
  • Place of Presentation: ホノルル
  • Year and Date: 2012-10-09
• [Presentation] 耐食性マイクロ流体デバイスを用いた高品質酸化物ナノ粒子の連続水熱合成 (2012)
  • Author(s): 陶究, 川崎慎一朗, 伯田幸也
  • Organizer: 日本セラミックス協会第25回秋季シンポジウム
  • Place of Presentation: 名古屋
  • Year and Date: 2012-09-20
• [Presentation] 希土類イオンをドープしたペロブスカイト型酸化物ナノ粒子の合成とSTEM観察 (2012)
  • Author(s): 青木光子, 高島浩, 陶究, 伯田幸也
  • Organizer: 日本セラミックス協会第25回秋季シンポジウム
  • Place of Presentation: 名古屋
  • Year and Date: 2012-09-19
• [Presentation] Production of Perovskite-type Metal Oxide Nanocrystals via Supercritical Water Method (2012)
  • Author(s): 伯田幸也
  • Organizer: 11th International Symposium on Ferroic Domains and Micro - to Nanoscopic Structures
  • Place of Presentation: エカテリンブルグ
  • Year and Date: 2012-08-24
• [Presentation] Flow Production of Nanoparticles Based on Hydrothermal Method (2012)
  • Author(s): 伯田幸也
  • Organizer: 1st. SKLFMC/ECUST-NRI/AIST JOINT WORKSHOP
  • Place of Presentation: 上海
  • Year and Date: 2012-07-02
• [Presentation] Preparation of Provskite type metal oxide nanocrystals in supercritical water and its photoluminescence property (2012)
  • Author(s): 伯田幸也
  • Organizer: CJK-FEOMA 2012
  • Place of Presentation: 上海
  • Year and Date: 2012-06-30
• [Presentation] マイクロミキサを用いた連続式水熱法によるCaxSr1-xTiO3ナノ粒子の合成 (2012)
  • Author(s): 小野剛, 陶究, 青木光子, 伯田幸也, 竹林良浩, 依田智, 古屋武, 佐藤敏幸, 日秋俊彦
  • Organizer: 日本セラミックス協会2012年年会
  • Place of Presentation: 京都
  • Year and Date: 2012-03-19
• [Presentation] ペロブスカイト型酸化物PCSTOナノ粒子のPLとEL特性 (2012)
  • Author(s): 高島浩, 伯田幸也
  • Organizer: 2012年春季第59回応用物理学関係連合講演会
  • Place of Presentation: 東京
  • Year and Date: 2012-03-18
• [Presentation] マイクロミキサを用いた連続水熱法による赤色蛍光体ナノ粒子CaxSr1-xTiO3 : PrおよびCayBa1-yTiO3 : Prの合成 (2012)
  • Author(s): 青木光子, 陶究, 小野剛, 伯田幸也, 竹林良浩, 依田智, 古屋武, 佐藤敏幸, 日秋俊彦
  • Organizer: 化学工学会第77年会
  • Place of Presentation: 東京
  • Year and Date: 2012-03-17
• [Presentation] Flow Production of Nanoparticles Based on Hydrothermal Method (2012)
  • Author(s): Yukiya Hakuta
  • Organizer: 1st. SKLFMC/ECUST-NRI/AIST JOINT WORKSHOP
  • Place of Presentation: East China University of Science and Technology(上海)
  • Invited
• [Presentation] Productuion of perovskite -type metal oxie nanocrystals via supercritical water method (2012)
  • Author(s): Yukiya Hakuta
  • Organizer: ISFD-11-RCBJSF
  • Place of Presentation: World Trade Center Ekaterinburg（エカテリンブルグ）
  • Invited
• [Presentation] Preparation of rare-earth doped zirconia nanoparticles via supercritical hydrothermal method for luminescence properties (2011)
  • Author(s): 伯田幸也, 陶究, 依田智, 竹林良浩, 古屋武, 高島浩
  • Organizer: The Seventh International Conference on High-Performance Ceramics
  • Place of Presentation: 厦門
  • Year and Date: 2011-11-06
• [Presentation] Preparation of rare-earth doped zirconia nanoparticles via supercritical hydrothermal method for luminescence properties (2011)
  • Author(s): 伯田幸也
  • Organizer: th International Conference on High-Performance Ce
  • Place of Presentation: 中国・厦門大学
  • Year and Date: 2011-11-06
• [Presentation] 超臨界水熱法によって作製したペロブスカイト型酸化物ナノ粒子のPL・EL特性 (2011)
  • Author(s): 高島浩, 伯田幸也
  • 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: 札幌
  • Year and Date: 2011-09-18
• [Presentation] 水熱反応によるペロブスカイトナノ蛍光体の作製とPL, EL特性評価 (2011)
  • Author(s): 伯田幸也, 陶究, 竹林良浩, 依田智, 古屋武, 高島浩
  • Organizer: 化学工学会第43回秋季大会
  • Place of Presentation: 名古屋
  • Year and Date: 2011-09-15
• [Presentation] マイクロミキサを用いた連続水熱法によるペロブスカイト型酸化物赤色蛍光体ナノ粒子の合成 (2011)
  • Author(s): 陶究, 青木光子, 伯田幸也, 川崎慎一朗, 佐藤剛史, 竹林良浩, 依田智, 古屋武, 佐藤敏幸, 日秋俊彦
  • Organizer: 化学工学会第43回秋季大会
  • Place of Presentation: 名古屋
  • Year and Date: 2011-09-15
• [Presentation] 水熱反応によるペロブスカイトナノ蛍光体の作製とPL、EL特性評価 (2011)
  • Author(s): 伯田幸也
  • Organizer: 化学工学会第43回秋季大会
  • Place of Presentation: 愛知県・名工大
  • Year and Date: 2011-09-15
• [Presentation] マイクロミキサを用いたPr3+ドープCaxBa1-xTiO3蛍光体ナノ粒子の連続水熱合成 (2011)
  • Author(s): 青木光子, 陶究, 伯田幸也, 古屋武, 日秋俊彦
  • 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: 札 幌
  • Year and Date: 2011-09-08
• [Presentation] 超臨界水熱法によるペロブスカイト型酸化物ナノ粒子の合成とPL特性 (2011)
  • Author(s): 伯田幸也, 高島浩, 陶究, 古屋武
  • 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: 札幌
  • Year and Date: 2011-09-07
• [Presentation] 超臨界水熱法によるペロブスカイト型酸化物ナノ粒子の合成とPL特性 (2011)
  • Author(s): 伯田幸也
  • 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・北大
  • Year and Date: 2011-09-07
• [Patent(Industrial Property Rights)] 蛍光体微粒子の製造方法, 蛍光体薄膜, 波長変換膜, 波長変換デバイス及び太陽電池 (2014)
  • Inventor(s): 高島浩, 伯田幸也, 鳥井淳史, 菱木達也
  • Industrial Property Rights Holder: 高島浩, 伯田幸也, 鳥井淳史, 菱木達也
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2014-022870
  • Filing Date: 2014-02-07