Reporter：Prof. Xinliang Feng from Technische Universität Dresden & Max-Planck Institute of Microstructure Physics

Title：Advances in Organic 2D Crystals——From On-Water Surface Chemistry to Functional Applications

Time: 10:00, February 7th (Tuesday)

Venue: the lecture amphitheater on 3rd floor，research building（科研楼三层阶梯教室）

Host: Prof. Zhiyong Tang (唐智勇研究员)

Bio:

Prof. Feng is a director at the Max-Planck Institute of Microstructure Physics and the head of the Chair of Molecular Functional Materials at Technische Universität Dresden, and. He has published more than 690 research articles which have attracted around 94000 citations with H-index of 153 (Google Scholar).

He has been awarded several prestigious prizes such as IUPAC Prize for Young Chemists (2009), European Research Council (ERC) Starting Grant Award (2012), Journal of Materials Chemistry Lectureship Award (2013), ChemComm Emerging Investigator Lectureship (2014), Fellow of the Royal Society of Chemistry (FRSC, 2014), Highly Cited Researcher (Thomson Reuters, 2014-2022), Small Young Innovator Award (2017), Hamburg Science Award (2017),EU-40 Materials Prize (2018), ERC Consolidator Grant Award (2018). He is a member of the European Academy of Sciences (2019), Academia Europaea (2019), and German Academy of Science and Engineering (acatech, 2021). He is an Advisory Board Member for Advanced Materials, Chemical Science, Journal of Materials Chemistry A, ChemNanoMat, Energy Storage Materials, Small Methods, Chemistry -An Asian Journal, Trends in Chemistry, etc. He is the Head of ESF Young Research Group "Graphene Center Dresden", Working Package Leader of WP Functional Foams & Coatings for European Commission’s pilot project “Graphene Flagship”, and spokesperson for the DFG Collaborative Research Center for the Chemistry of Synthetic 2D Materials (2020-).

Abstract:

In contrast to the tremendous efforts dedicated to the exploration of graphene and inorganic 2D crystals such as metal dichalcogenides, boron nitride, black phosphorus, metal oxides, and nitrides, there has been much less development in organic 2D crystalline materials, including the bottom-up organic/polymer synthesis of graphene nanoribbons, 2D metal-organic frameworks, 2D polymers/supramolecular polymers, as well as the supramolecular approach to 2D organic nanostructures. One of the central chemical challenges is to realize a controlled polymerization in two distinct dimensions under thermodynamic/kinetic control in solution and at the surface/interface. In this talk, we will present our recent efforts in bottom-up synthetic approaches toward novel organic 2D crystals with structural control at the atomic/molecular level. On-water surface synthesis provides a powerful synthetic platform by exploiting surface confinement and enhanced chemical reactivity and selectivity. We will particularly present a surfactant-monolayer assisted interfacial synthesis (SMAIS) method that is highly efficient in promoting the programmable assembly of precursor monomers on the water surface and subsequent 2D polymerization in a controlled manner. 2D conjugated polymers and coordination polymers belong to such material classes. The unique 2D crystal structures with possible tailoring of conjugated building blocks and conjugation lengths, tunable pore sizes and thicknesses, as well as impressive electronic structures, make them highly promising for a range of applications in electronics, optoelectronics, and spintronics. Other physicochemical phenomena and application potential of organic 2D crystals, such as in membranes, will also be discussed.