Cornell University

This is a past event. Its details are archived for historical purposes.

The contact information may no longer be valid.

Please visit our current events listings to look for similar events by title, location, or venue.

LASSP Seminar with Qingkun Liu

Thursday, August 23, 2018 at 1:00pm

Physical Sciences Building, 416
245 East Avenue

Qingkun Liu
Smalyukh Research Group
University of Colorado Boulder

Liquid Crystalline Assembly of Nanomaterials

Self-assembly of nanoscale building blocks into long-range three-dimensional structures is key for development of nanostructured materials with pre-engineered optical, thermal and mechanical properties. Liquid crystals (LCs) exhibit long range ordering and feature facile response to weak stimuli (e.g. voltage, light), making them excellent candidates for preparing self-assembled responsive nanomaterials. In this talk, I will first introduce long-range ordered LC/plasmonic nanoparticle systems with facile response to low-voltage fields and low-intensity light. enabling a new generation of smart windows and optical metamaterials. Next, I will discuss liquid crystalline self-assembly of biological building blocks such as cellulose nanofibers into ordered aerogels and photonic films. This scalable nanocellulose platform allows economic fabrication of innovative photonic materials from the bottom-up, enabling technologies such as energy-saving retrofittable window films and biomimetic flexible optoelectronic devices. Finally, I will discuss the novel physics emerging from LCs embedded with micro- and nano-building blocks, where fluidity, topology, and properties such as ferromagnetism intersect. Understanding the fundamental physics underlying these systems gives us insight into these new types of self-assembly.


Hosted by Itai Cohen

Poster available

Subscribe
Google Calendar iCal Outlook
Event Type

Seminar

Departments

LASSP

Tags

physics, lassp

Speaker

Qingkun Liu

Speaker Affiliation

University of Colorado Boulder

Recent Activity