讲座预告 | 法国索邦大学André-Jean Attias教授系列报告
报告题目1：Necessary and sufficient condition for efficient organic room-temperature phosphorescence from host-guest doped crystalline systems.
报 告 人：André-Jean Attias 教授（法国索邦大学）
邀 请 人：胡 斌 教授
报告时间：2025年12月16日（周二）下午15:00-17:00
报告地点：北区发光材料与器件全国重点实验室501会议室
报告摘要：
The presentation deals with long-lived room temperature phosphorescent (RTP) organic materials. Controlling and predicting the RTP are the next challenges to address for the realization of new efficient organic RTP systems. We have developed a new approach to reach these objectives by considering host-guest doped molecular crystals. We designed two series of -conjugated donor/acceptor (D--A) carbazole-based matrices and isomeric benzoindole-based dopants, capable of exploring a wide variety of conformations thanks to large rotational degrees of freedom provided by the -conjugation. They are well-suited model systems in that they allow the comprehensive understanding of synergetic structural interactions between crystalline host matrices and emitting guest molecules, one of the key parameters to understand relationship between the solid-state organization and crystal RTP performances. By correlating results of single-crystal X-ray diffraction analysis and photoluminescence properties, we established a necessary and sufficient condition for RTP that paves the way for the development of new long-lived RTP host-guest doped systems.
报告题目2：2D host–guest supramolecular chemistry for an on-monolayer graphene emitting platform.
报 告 人：André-Jean Attias 教授（法国索邦大学）
邀 请 人：胡 斌 教授
报告时间：2025年12月17日（周三）下午15:00-17:00
报告地点：北区发光材料与器件全国重点实验室501会议室
报告摘要：
The presentation is focused on electronic decoupling of molecular chromophores from graphene. The objective is to avoid the emission quenching due to electronic interactions between this semimetal and directly adsorbed optically active molecules. We demonstrate an easy-to-implement strategy that successfully tackles the electronic decoupling issue. This noncovalent functionalization approach, based on two-dimensional (2D) host–guest supramolecular chemistry, enables immobilization of emitting 3D guest molecules onto a 2D self-assembled porous template. The well-controlled graphene–chromophore and inter-chromophore distances combined with the mastered chromophore orientation allow the elaboration of an emitting graphene-based system with the same features as the single molecule emitter, demonstrating the preservation of its intrinsic electronic properties.
报告人简介：
André-Jean Attias (1957)，法国索邦大学Sorbonne University材料化学领域荣誉教授，现任该校多个国际联合实验室的负责人，研究领域涵盖开发新型有机晶体、超分子半导体材料等，探索其在光致发光、电荷传输中的应用。在超分子自组装、有机纳米结构材料以及光电材料设计方面取得了诸多开创性成果，其工作推动了纳米技术、光子学和有机光电子学的发展。
