报告题目：From Nonlinear Block Copolymers to Nanocrystals with Unprecedented Control over Dimensions, Compositions, and Architectures for Solar Cells, Photocatalysis, LEDs and Batteries
报告人：Zhiqun Lin，School of Materials Science and Engineering, Georgia Institute of Technology
Nanocrystals exhibit a wide range of unique properties (e.g., electrical, optical, optoelectronic, catalytic, etc.) that depend sensitively on their size and shape, and are of both fundamental and practical interest. Breakthrough strategies that will facilitate the design and synthesis of a large diversity of nanocrystals with different properties and controllable size and shape in a simple and convenient manner are of key importance in revolutionarily advancing the use of nanocrystals for a myriad of applications in lightweight structural materials, optics, electronics, photonics, optoelctronics, magnetic technologies, sensory materials and devices, catalysis, drug delivery, and biotechnology among other emerging fields. In this context,we have recently developed a general and robust strategy for crafting an exciting variety of nanocrystals with precisely controlled dimensions, compositions, architecture, and surface chemistry by capitalizing on a set of rationally designed unimolecular star-like, bottlebrush-like, and worm-like block copolymers as nanoreactors. This strategy is highly effective and able to produce oil-soluble, water-soluble, and stimuli-responsive monodisperse plain and hollow NPs, including plasmonic, ferroelectric, magnetic, luminescent, semiconducting, and perovskite NPs, as well as their core/shell NPs. These monodisperse NPs are then exploited for use in energy conversion and storage, including upconversion NPs for perovskite solar cells, plasmonic/semiconducting core/shell NPs for dye-sensitized solar cells and photocatalysis, perovskite NPs for light-emitting diodes, and metal oxide NPs for lithium ion batteries with markedly improved performance.
Dr. Zhiqun Lin is currently Professor of Materials Science and Engineering at the Georgia Institute of Technology. He received the B.S. degree in Materials Chemistry from Xiamen University, Fujian, China in 1995, the Master degree in Macromolecular Science from Fudan University, Shanghai, China in 1998, and the PhD degree in Polymer Science and Engineering from University of Massachusetts at Amherst in 2002. He did his postdoctoral research at University of Illinois at Urbana-Champaign. He joined the Department of Materials Science and Engineering at the Iowa State University as an Assistant Professor in 2004 and was promoted to Associate Professor in 2010. He moved to Georgia Institute of Technology in 2011, and become a Professor in 2014. His research interests includepolymer-based nanocomposites, block copolymers, polymer blends, conjugated polymers, quantum dots (rods, tetrapods and wires), functional nanocrystals (metallic, magnetic, semiconducting, ferroelectric, multiferroic, upconversion and thermoelectric) of different architectures (plain, core/shell, hollow and Janus), solar cells (perovskite solar cells, organic-inorganic hybrid solar cells and dye sensitized solar cells), lithium ion batteries, hydrogen generation, hierarchically structured and assembled materials, and surface and interfacial properties. He has published more than 230 peer reviewed journal articles (with an h-index of 65), 13 book chapters, and 5 books. Currently, he serves as an Associate Editor for Journal of Materials Chemistry A, and an editorial advisory board member for Nanoscale. He is a recipient of Frank J. Padden Jr. Award in Polymer Physics from American Physical Society, an NSF Career Award, a 3 M Non-Tenured Faculty Award, and an invited participant at the National Academy of Engineering’s 2010 US Frontiers of Engineering Symposium. He became a Fellow of Royal Society of Chemistry in 2014 and a Japan Society for Promotion of Science (JSPS) Fellow in 2015. More information on his research can be found athttp://nanofm.mse.gatech.edu/.