Curriculum Vitae

Professional Experience

  • Associate professor, Department of Chemistry & cross appointed to department of physics,  University of Toronto (2004/07 – present)
  • Assistant professor, Department of Chemistry, University of Toronto (1999/09 – 2004/07)
  • Assistant professor, Department of Physics, Simon Fraser University (1999/01 – 1999/08)
  • Postdoctoral fellow, Research Laboratory of Electronics, M.I.T. (1996/07 – 1998/06)

Education

  • Ph.D., Experimental Physics, University of Chicago (1991/09 – 1996/06)
  • MS, Theoretical Physics, McGill University (1989/09 – 1991/06)
  • B.Sc., Honors Physics, University of Alberta (1986/01 – 1989/06)

Awards

  • Premier’s Research Excellence Award (2000)
  • NSERC Postdoctoral fellowship, M.I.T. (1997)
  • James Franck Symposium Dissertation Award, University of Chicago  (1996)
  • Hulda and Maurice Rothschild Fellowship, University of Chicago (1995)

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.

Conductance detection

In addition to questions in fundamental physical science, we are interested in methods and tools for analytical applications. A current focus is advancing conductance detection for chromatography and benchtop applications.

Y.Suganuma and A.-A. Dhirani

conductdetect1


Selected references:

Y.Suganuma and A.-A. Dhirani, US Patent US 8246910 B2

Y.Suganuma and A.-A. Dhirani, “A layered microchip conductance detector with through-layer access to detection fields and high sensitivity to dielectric constant,” Rev. Sci. Instr. 82 (2011) 044701 (5 pp).

Y.Suganuma, F. Menard, M. Lautens and A.-A. Dhirani, “Apertured impedance microchips: Surface modification and evaluation using high performance liquid chromatography,” Sensors and Actuators B: Chemical 173 (2012) 852 (11 pages).

Y.Suganuma, N. Toltl and A.-A. Dhirani, “Evaluation of a low cell constant conductance detector for detection of charged species in high-performance liquid chromatography,”Analytical Methods 5 (2013) 6855 (9 pages).