科罗拉多州立大学Ivan I. Smalyukh教授

做客第230期化苑讲坛

报告题目：Ordered Colloidal Dispersions of Nanoparticles as Reconfigurable Composite Materials

报 告 人 ：Ivan I. Smalyukh教授

报告时间：2016年12月19日（周一）下午14：30

报告地点：化学楼二楼一号会议室

报告人简介：

Ivan I. Smalyukh教授在液晶材料和纳米粒子组装方面开展了卓有成效的工作，2009 获得NSF CAREER Award，发表SCI论文144篇，其中Nature 2篇、Science 2篇、Nature子刊5篇、Phys. Rev. Lett. 13篇、Proc. Natl. Acad. Sci. 9篇、Adv. Mater. 3篇。

报告内容：

A promising approach of designing mesostructured materials with novel physical behavior is based on combining unique optical and electronic properties of solid nanoparticles with long-range ordering and facile switching of soft matter. This lecture will describe how we practically realize molecular-colloidal organic-inorganic composites formed via multi-scale self-assembly in dispersions of anisotropic inorganic nanoparticles in liquid crystals [1,2]. These composites are pre-engineered to exhibit novel plasmonic, luminescence, photon-up-converting, and other unusual optical properties controlled by low-voltage fields and light itself. The lecture will conclude with a discussion of a new breed of potential applications of liquid crystal colloids.

[1] H. Mundoor, B. Senyuk, and I. I. Smalyukh. Triclinic nematic colloidal crystals from competing elastic and electrostatic interactions. Science 352, 69-73 (2016).

[2] L. Jiang, H. Mundoor, Q. Liu, and I. I. Smalyukh. Electric switching of fluorescence decay in gold-silica-dye nematic nanocolloids mediated by surface plasmons. ACS Nano 10, 7064-7072 (2016)