Title: Using quantum mechanics to understand fundamental chemical processes and create physics devices
Speaker: Jeffrey Reimers, Fellow of Australian Academy of Science and of Royal Australian Chemical Institute; Professor of Shanghai University
Time(时间):2019年6月21日(星期五)14:00
Place(地点):宝山校区J102
Abstract: The seminar will overview work done at SHU over the last 5 years. One major theme will be the nature of the van der Waals force, a quantum force critical for self assembly of surface-active layers and nanoparticles, but also a force that can compete with covalent and ionic bonding. It has traditionally been thought to be, like gravity, a weak force that simply adds up, but we will show how it can be switched off. Also mentioned will be the synthesis of silicon P-N diodes, with sub-nm sized, chemically bridged junctions, showing high rectification, high reproducibility, and very stable operation. Finally, a new and final fundamental form of stereoisomerism will be described. Its discovery parallels that of chirality in 1848 and cis-trans isomerism in 1890, presenting a new frontier for chemical design. The discovery will be applied to understand properties of cocaine derivatives and of graphene oxide.
Inviter: Physics Department