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No.207 Professor Dong Qin 学术报告

报告题目:Understanding Heterogeneous Nucleation in Nanocrystal Growth with a Molecular Probe by Surface-Enhanced Raman Scattering

报告人:Professor Dong QinGeorgia Institute of Technology

时间:2019-5-27,下午13:30

地点材料A500

联系人邓涛老师、宋成轶老师

报告人简介:

Dong Qin is an Associate Professor of MSE at Georgia Tech, with an adjunct appointment in the School of Chemistry & Biochemistry. Her academic records include a B.S. in Chemistry from Fudan University (1990), a Ph.D. in Physical Chemistry with Professor Hai-Lung Dai from University of Pennsylvania (1996), a postdoctoral stint with Professor George M. Whitesides at Harvard University (1996–1997). Her current research focuses on the unique properties and applications of nanoscale materials and systems

报告摘要:

Bimetallic nanocrystals, made of two different metal species, have properties that are often superior to their single-metal counterparts. In this talk, I will report our recent progress to address the challenge by developing a class of molecules, the isocyanides (molecules containing the -NC chemical group), as probes for in situ characterization with detection of the isocyanides by a spectroscopic technique, surface-enhanced Raman scattering (SERS). I will demonstrate that the vibrational frequency of 2,6-dimethylphenyl isocyanide (2,6-DMPI) can serve as a distinctive reporter for platinum and palladium atoms being deposited on the edges of silver nanocubes, with a detection limit well below one monolayer.

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