Fabrication of Light-Harvesting Antenna Nanocrystalline System Composed of Porphyrin Compounds and Their Optical Properties

• Project/Area Number: 19550131
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials chemistry
• Research Institution: Tohoku University
• Principal Investigator: KASAI Hitoshi Tohoku University, 多元物質科学研究所, 准教授 (30312680)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: ポルフィリン / ナノ結晶 / 再沈法 / 光捕集アンテナ系 / サイズ制御 / ナノ混晶 / エネルギー移動

Research Abstract

提案者独自の技法である再沈法を用いて、50 nmから400 nm程度の範囲でのサイズ制御された、単一種または複数種のポルフィリン化合物で構成されるナノ結晶やナノ混晶を作製できた。これらの光学特性に関しては、ナノ結晶のサイズに連動した結晶ドメイン間の会合状態の変化が観測されるとともに、ポルフィリンナノ混晶の系では、ドナー/アクセプタ-間の光エネルギー移動が初めて観測された。将来的には、物光電変換材料などの機能性材料として使用されることが期待される

Research Products

• [Journal Article] Methodological features of the emulsion and reprecipitation methods for organic nanocrystal fabrication (2008)
  • Author(s): K. U.-Ishii, E. Kwon, H. Kasai, H. Nakanishi, and H. Oikawa
  • Journal Title: Crystal Growth Design 8 Pages: 369-371
  • Peer Reviewed
• [Journal Article] Methodological features of the emulsion and reprecipitation methods for organic nanocrystal fabrication (2008)
  • Author(s): K. U. -Ishii, E. Kwon, H. Kasai, H. Nakanishi, and H. Oikawa
  • Journal Title: Crystal Growth Design 8 Pages: 369-371
  • Peer Reviewed
• [Journal Article] A Fabrication Method Effect of Organic Nanocrystal Using Stabilizer-Free Emulsion (2007)
  • Author(s): E. Kwon, H. Oikawa, H. Kasai, and H. Nakanishi
  • Journal Title: Crystal Growth Design 7 Pages: 600-602
  • Peer Reviewed
• [Journal Article] Surface structure effect on optical properties of organic nanocrystals (2007)
  • Author(s): E. Kwon, H.-R. Chung, Y. Araki, H. Kasai, H. Oikawa, O. Ito and H. Nakanishi
  • Journal Title: Chem Phys. Lett 441 Pages: 106-108
  • Peer Reviewed
• [Journal Article] 有機色素系ナノ結晶の作製から応用展開まで (2007)
  • Author(s): 笠井均, 中西八郎, 宮下陽介
  • Journal Title: 色材 80 Pages: 425-429
  • NAID: 10019765481
• [Journal Article] A Fabrication Method Effect of Organic Nanocrystal Using Stabilizer-Free Emulsion (2007)
  • Author(s): E. Kwon
  • Journal Title: Crystal Growth Design 7 Pages: 600-602
  • Peer Reviewed
• [Journal Article] Surface structure effect on optical properties of organic nanocrystals (2007)
  • Author(s): E. Kwon
  • Journal Title: Chem Phys. Lett. 441 Pages: 106-108
  • Peer Reviewed
• [Journal Article] 有機色素系ナノ結晶の作製から応用展開まで (2007)
  • Author(s): 笠井 均
  • Journal Title: 色材 80 Pages: 425-429
  • NAID: 10019765481
• [Presentation] Fabrication of Size-Cotrolled Organic Nanocrystals and Their Application (2008)
  • Author(s): Hitoshi KASAI
  • Organizer: The 4 th Asian Conference on Crystal Growth and Crystal Technology
  • Place of Presentation: Sendai
  • Year and Date: 2008-05-28
• [Presentation] Fabrication of Size-Cotrolled Organic Nanocrystals and Their Application (2008)
  • Author(s): Hitoshi KASAI
  • Organizer: The 4 th Asian Conference on Crystal Growth and Crystal Technology
  • Place of Presentation: Sendai(JAPAN)
  • Year and Date: 2008-05-21
• [Presentation] Fabrication of Organic Nanocrystals and Their Application (2007)
  • Author(s): Hitoshi KASAI
  • Organizer: 2007 Korean-Japan Bilateral Symposium on Frontier Photoscience
  • Place of Presentation: 慶州(韓国)
  • Year and Date: 2007-11-24
• [Presentation] Organic Nanocrystals (2007)
  • Author(s): 笠井 均
  • Organizer: 2007 Korean-Japan Bilateral Symposium on Frontier Photoscience
  • Place of Presentation: 慶州(韓国)
  • Year and Date: 2007-11-23
• [Book] 有機・高分子ナノ粒子の作製と応用展開 (2008)
  • Author(s): 笠井 均, 石坂孝之, 及川英俊, 中西八郎
  • Publisher: シーエムシー出版
• [Book] 有機ナノ結晶の作製とその実用化研究開発 (2008)
  • Author(s): 笠井 均
  • Publisher: 日刊工業新聞社編
• [Book] 著書名『光機能性高分子材料の新たな潮流』の中で、第III編第3章「有機・高分子ナノ粒子の作製と応用展開」を担当著作 (2008)
  • Author(s): 笠井均, 石坂孝之, 及川英俊, 中西八郎
  • Publisher: シーエムシー出版
• [Book] 著書名『究極の粉をつくる』の中で、第9章3節「有機ナノ結晶の作製とその実用化研究開発」を担当著作 (2008)
  • Author(s): 笠井均
  • Publisher: 日刊工業新聞社編