一、主 题：Curved Polycyclic Arenes: from Molecules to Materials
二、主讲人：香港中文大学 缪谦 教授
四、参会方式：腾讯会议 会议ID：726 922 704
Curved polycyclic arenes not only present esthetic and interesting molecular structures but also play a unique role in science of carbon nanomaterials and organic functional materials. This lecture will present the recent progress of our research on curved polycyclic arenes in two aspects. The properties of carbon nanomaterials are determined by their structures, and how to precisely synthesize structurally uniform carbon nanomaterials is a scientific question of key importance. The chirality-specific synthesis of carbon nanotubes is still an unsolved problem, and the negatively curved three-dimensional carbon nanomaterials represented by carbon schwarzites essentially remain hypothetical structures for theoretical studies. In order to achieve precise synthesis of these carbon nanomaterials, we have studied two types of carbon nanostructures, namely carbon nanobelts and negatively curved nanographenes. The first part of this lecture will present the synthesis and properties of these carbon nanostructures. The second part will introduce organic semiconductors based on hexabenzoperylene (HBP), which has a twisted framework of double helicene, and their applications in organic field effect transistors (OFETs), which are elemental units in organic integrated circuits for mechanically flexible, low cost, and wearable electronic devices. Functionalized HBPs form unusually stable cations by photooxidation under ambient conditions and present a unique packing mode in the solid state that allows a variety of functional groups to be grafted onto organic semiconductors without sacrificing charge transport pathways. As a result, OFETs based on functionalized HBPs have enabled highly sensitive and selective chemical/biological sensors and high-performance nonvolatile organic optoelectronic memories.
Prof. Miao was born in Chengdu, China, and graduated from the University of Science and Technology of China with a B.S. in 2000. He received his Ph.D. from Columbia University in 2005 under the direction of Prof. Colin Nuckolls and was a postdoctoral scholar with Prof. Fred Wudl at University of California, Los Angeles. He joined the Chinese University of Hong Kong (CUHK) as an Assistant Professor in 2006, was promoted to Associate Professor in 2012, and became a Full Professor in 2016. His research interests include the design and synthesis of novel polycyclic aromatic molecules with interesting structures and useful applications, exploring novel molecular nanocarbons and developing high-performance organic semiconductor materials and devices using tools from organic synthesis, and supramolecular and surface chemistry. He is a Croucher Senior Research Fellow, and an Outstanding Fellow of the Faculty of Science, CUHK, and received the Chemical Society of Japan Lectureship Award 2020.
编辑：赵海玲 / 审核：林坤 / 发布：陈伟