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Fluorene based p-Conjugated System for Optoelectronic Applications: From chemistry to materials
更新日期:2017-05-09  

题    目:Fluorene based p-Conjugated System for Optoelectronic Applications: From chemistry to materials
报告人:
徐锦嘉
单    位:日本国家物质材料研究所高分子材料研究中心
时    间:2017/5/12  10:00AM
地    点:海西院231会议室
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简介:

  徐锦嘉,女,工学博士,20079月至20116 华中科技大学获学士学位;20118月至20169月在 日本筑波大学(University of Tsukuba)材料科学与工程系高分子研究室攻读有机化学硕士以及物质材料工学博士学位课程,取得工学博士学位;20169月博士毕业后,作为日本学术振兴会特别研究员 JSPS)在日本国家物质材料研究所(National Institute for Materials Science)高分子材料研究中心从事博士后研究工作,师从竹内正之 Masayuki Takeuchi)教授,主要研究课题为功能有机小分子共轭高分子材料合成,3D构造,性能,自组装的研究。研究兴趣:新型n型共轭聚合物的合成与光能性能研究;手性有机小分子高聚物自组装研究;室温磷光发光材料的设计合成与物性研究。 

报告摘要:

Fluorene-based materials have received much attention, due to their attractive and advantageous properties such as rigid and planar structure, easy modification through synthetic methods, thermal and oxidative stability as well as high photoluminescence quantum yield. As one of promising materials, the p-conjugated system based on fluorene building blocks is of great importance in various applications, such as organic electronic and photonic devices, chemo- or bio-sensing, imaging, and supramolecular assembly. The optical and electronic properties of fluorene-based materials are highly dependent on both the chemical structures and supramolecular organization.  

    In this talk, I focused on molecular design strategies to achieve fluorene-based functional materials aiming at exploring unique photo-physical properties and control over supramolecular organizations of fluorene-based oligomers and polymers (Scheme). The designed, synthesized and characterized series of fluorene-based derivatives with multifunctionality will be included: (1) phosphorescence emission from a fluorene-based small molecule functionalized by bromo and formyl groups in solution at room temperature; (2) RGB trichromophoric nanoparticle with white emission assisted by dual FRET: highly sensitive fluorogenic response toward polyanions in a ratiometric manner associated with visible response and low detection limit; (3) a single organic molecule exhibits unique solvatochromic behavior driven by solvent dependent state switching; (4) dynamic chiroptical conjugated polymer with helicity assisted by the point chirality induction. I believe that our interesting findings discussed in this thesis would offer a series of unprecedented design principle to obtain schematic insight into the relationship between the structural modification and resulting properties of fluorene based p-conjugated system.