Exotic quantum charge transport in nano particle materials

Gold nanoparticle + molecule assemblies can exhibit electrical behaviours that are tunable through choice of molecule, assembly architecture, etc. Recently, we have been studying an insulator-to-metal transition in these systems, where the assemblies exhibit exotic quantum phenomena.

Selected references:

P.-E. Trudeau, A. Escorcia and A.-A. Dhirani, “Variable single electron charging energies and percolation effects in molecularly linked nanoparticle films,” J. Chem. Phys. 119 (2003) 5267.

A.  Zabet-Khosousi, Y. Suganuma, K. Lopata, P.-E. Trudeau, and A.-A. Dhirani, “Influence of linker molecules on charge transport through self-assembled single-nanoparticle devices,” Phys. Rev. Lett. 94 (2005) 096801.

B.  J. L. Dunford and A.-A. Dhirani, “Reflectionless tunneling at nanoparticle film – superconductor interfaces,” Phys. Rev. Lett., 100 (2008) 147202 (4pp).

M. Tie, P. Joanis, Y. Sugtanuma and A.-A. Dhirani, “Conductance peaks and exotic metallic behavior in an engineered nanoscale system: Signatures of correlated quasiparticles,” Rev. B (2014) 155117 (6 pages).

S. Gravelsins, M. Hasham, Y. Lin, K. Yu. M. Tie, C. Goh and A.-A. Dhirani “Controlled hierarchical assembly of gold nanoparticles in macroscopic films: from densely packed monolayers to networks of micropores and nanobundles,” Soft Matter 13 (2017) 2413.

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