Control of emission wavelength and fluorescent quantum yield by regulating the size and composition of fluorescent carbon dots in the subnano region

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K13761
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Green/Environmental chemistry
• Research Institution: Tokyo Metropolitan Industrial Technology Research Institute
• Principal Investigator: Hayashi Kosei 地方独立行政法人東京都立産業技術研究センター, 事業化支援本部技術開発支援部先端材料開発セクター, 副主任研究員 (80560151)
• Co-Investigator(Kenkyū-buntansha): 渡辺 洋人 地方独立行政法人東京都立産業技術研究センター, 事業化支援本部技術開発支援部先端材料開発セクター, 副主任研究員 (00500901) ; 染川 正一 地方独立行政法人東京都立産業技術研究センター, 事業化支援本部技術開発支援部先端材料開発セクター, 主任研究員 (20520216) ; 藤巻 康人 地方独立行政法人東京都立産業技術研究センター, 事業化支援本部技術開発支援部先端材料開発セクター, 副主任研究員 (70392305)
• Co-Investigator(Renkei-kenkyūsha): IMAI Hiroaki 慶應義塾大学, 理工学部, 教授 (70255595)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 多孔質シリカ / ナノ空間 / 蛍光分子 / 集積状態制御

Outline of Final Research Achievements

We developed functional materials which used pore of nano porous silica having sub nano size. Recent year, research of functional material called carbon-dots have been conducted activity. Carbon-dots have been synthesized by heating of organic compounds as one of the bottom up method. However, this bottom up method have not been optimized. In this study, we first optimized synthetic method by using pore of NPS. When the obtained compound was extracted and refined, it was suggested that this compound was 2-pyron derivative having a structure of cyclic ester. Next, we evaluated physical properties of fluorescent molecules in the pore of NPS. It was found that the molecule can control the aggregation state of fluorescent molecules, because of fluorescent molecules having the same size as the pores can exist as monomolecules in the pores.

Free Research Field

機能性材料