Quantum dots (QDs) offer a significant advantage in the realm of photovoltaics, with respect to their tunable band gaps. Their charge collection is however, inefficient as multiple pathways compete with the collection process. 1D nanostructures such as wires or tubes provide a long dimension in which charges can propagate to be collected. Combining a bright QD and a 1D carbon nanotube is one way to utilize the best of both. To optimize the photoconductivity of a 0D-1D heterostructure device both charge separation and collection must be well understood. The details of charge separation are highly dependent on the surface of the QD making this a primary focus of our experimental studies.
Liu, Y., Wang, F., Hoy, J., Wayman, V., Steinberg, L., Loomis, R., Buhro, W., Bright Core-Shell Semiconductor Quantum Wires, Journal of the American Chemical Society, 2012, 134 (45), 18797-18803
Hoy, J, Morrison, PJ, Stienberg, LK, Buhro, WE, Loomis, RA, Excitation Energy Dependence of the Photoluminescence Quantum Yields of Core and Core/Shell Quantum Dots, Journal of Physical Chemistry Letters, 2013, 4 (12), 2053-2060
Scientific Talk: Excitation Energy Dependence of Photoluminescence Quantum Yield in Semiconductor Quantum Wires, American Chemical Society (ACS) regional meeting, St. Louis, MO October 2011
Scientific Talk: Characterizing the excitation-energy dependence of photoluminescence quantum yields in quantum nanostructures, ACS regional meeting, Wichita, KS, October 2010