Formation of Hybrid Layered Perovskites with Silsesquioxane Interlayers

• Project/Area Number: 16K05902
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Organic and hybrid materials
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Kataoka Sho 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (50435765)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: Layered perovskite / silsesquioxane / porous structure / hybrid / film / 層状ペロブスカイト / 層間材料 / カゴ状シルセスキオキサン / 細孔構造 / 薄膜 / 有機ケイ素 / 細孔 / ハロゲン化金属 / POSS / ハイブリッド

Outline of Final Research Achievements

This research project aims to improve the functionalities of layered perovskites with silsesuquioxane interlayers, which we developed. Owing to the rigid structure of polyhedral oligomeric silsesquioxanes (POSS), micropores between perovskite layers were formed. We demonstrated that the micropore volume can be controlled through the addition of a small amount of organic amine to POSS interlayers, while the layer distance was maintained at the size of POSS. Furthermore, the addition of amine allowed maintaining the layered perovskite structures even when these products are coated on substrates. It was difficult to coat this type of hybrid layered perovskites on substrates only with the POSS interlayers. These results reveal the potential of these layered perovskites to a wide variety of applications.

Academic Significance and Societal Importance of the Research Achievements

有機無機ハイブリッド型層状ペロブスカイト化合物は、ペロブスカイト層と絶縁層が交互に存在する低次元材料であり、半導体材料や発光素子材料など様々な分野への応用が期待されている。これまでに開発した層状ペロブスカイトは、結晶構造を維持したままナノ細孔を持つという特色があったが、細孔容積が十分でないという問題があった。本研究で細孔比表面積を制御する技術を確立したことで、ナノ細孔を有効に利用して機能強化に繋がることが期待される。また、少量の有機アミンを添加することで、薄膜化への道筋も示された。これにより、細孔を利活用した機能向上への研究へ繋げていきたい。

Research Products

• [Journal Article] カゴ型シルセスキオキサンを層間に持つ層状ペロブスカイトの開発 (2019)
  • Author(s): 片岡祥
  • Journal Title: ゼオライト Volume: 36 Pages: 12-17
  • Peer Reviewed
• [Journal Article] Toward Increasing Micropore Volume between Hybrid Layered Perovskites with Silsesquioxane Interlayers (2018)
  • Author(s): Sho Kataoka, Yoshihiro Kamimura, Akira Endo
  • Journal Title: Langmuir Volume: 34 Issue: 14 Pages: 4116-4172
  • DOI: 10.1021/acs.langmuir.7b04337
  • Peer Reviewed
• [Journal Article] Hybrid Lead Halide Layered Perovskites with Silsesquioxane Interlayers (2017)
  • Author(s): Sho Kataoka, Wako Kaburagi, Hiroyuki Mochizuki, Yoshihiro Kamimura, Kazuhiko Sato, and Akira Endo
  • Journal Title: Journal of Nanoscience and Nanotechnology Volume: 印刷中
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] ナノ細孔を持つ層状ペロブスカイト型化合物の作製 (2017)
  • Author(s): 片岡祥、遠藤明
  • Organizer: 第33回ゼオライト研究発表会
• [Presentation] Hybrid Layered Perovskites with Nanopores (2017)
  • Author(s): Sho Kataoka and Akira Endo
  • Organizer: 15th International Conference on Advanced Materials
  • Int'l Joint Research / Invited
• [Patent(Industrial Property Rights)] 細孔を有する有機無機層状ペロブスカイト型化合物とその有機無機層状ペロブスカイト型化合物の製造方法 (2017)
  • Inventor(s): 片岡祥
  • Industrial Property Rights Holder: 片岡祥
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2017-224406
  • Filing Date: 2017