Artificial Atoms, Molecules, and Solids: Multiple Functions and Emergent Properties
Abstract
This proposal develops a new type of nanoscale building block, a superatom or nanoscale atom, and to assembly it into functional materials. Superatoms are stoichiometric clusters of atoms that behave like traditional atoms but are highly tunable and infinitely diverse. In this project, superatoms will be used in the design, synthesis, and characterization of a new generation of multi-functional materials. In particular, we aim to use superatom assemblies to tackle the challenge of directing charge/energy flow. We will develop the chemistry to create and control strong inter-superatom electronic interaction in 1D and 2D motifs and assemble them into 3D solids. Among various emergent properties, we will target materials for: (i) efficient charge transport but inefficient thermal energy transport in phonon glass electron crystals (PGECs); and (ii) efficient transport and harvesting of the two triplets from molecules that undergo singlet fission. We will combine state-of-the-art spectroscopic tools with model device measurements and theoretical calculations to understand the relationship between superatom structures/interactions and charge/energy flow. The ultimate goal is to develop a palette of superatoms and a suite of methods to control the coupling between them along with an arsenal of physical methods to understand energy flow on the nanoscale.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA95501810020
Entities
People
- Colin Nuckolls
Organizations
- Air Force Office of Scientific Research
- Trustees of Columbia University in the City of New York
- United States Air Force