Here I will describe our recent efforts in understanding the 2-D phase behavior of colloidal nanocrystal assemblies at a liquid-liquid interface, both in liquid-like and solid-like states. I will highlight how it is now possible to leverage the dynamic aspects of nanocrystal surface chemistry in these systems to controllably switch between these solid-like and liquid-like states. Furthermore, I will show how the kinetic trajectory between them can be guided in space and time using rational design principles of for the various species in the system engaged in bonding to the nanocrystal surface. The emerging view from our work is that such systems constitute a new class of responsive and reconfigurable matter than can be made to adapt it's structure and properties on demand.

Responsive and reconfigurable materials from dimensionally confined colloidal nanocrystal assemblies

253rd National Meeting (2017)

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