Quantum dot applications are numerous and range from photovoltaic devices and lasers, to bio labeling. Complexities in the electronic band structure of quantum dots create the necessity for analysis techniques that can accurately and reproducibly provide their absolute band energies. Cyclic voltammetry (CV) is a novel candidate for these studies and has the potential to become a useful tool in engineering new nanocrystal technology, by providing information necessary for predicting and modeling interfacial charge transfer to and from quantum dots. Advancing from previous reports of nanocrystal CV, a carbon paste electrode was utilized in an attempt to increase measured current by ensuring intimate contact between nanocrystals and the electrode. Our goal was to investigate band energies and model nanocrystal-molecule electron transfer systems.

Date Published: 16 September 2011
PDF: 6 pages
Proc. SPIE 8098, Physical Chemistry of Interfaces and Nanomaterials X, 809811 (16 September 2011); doi: 10.1117/12.893966

Published in SPIE Proceedings Vol. 8098:
Physical Chemistry of Interfaces and Nanomaterials X
Carlos Silva, Editor(s)