The unique optoelectronic properties of a nanocomposite material comprised of cadmium selenide (CdSe) nanocrystals (NCs) embedded in a photoconductive liquid C 60 have been investigated. CdSe NCs are shown to sensitize the composite material to visible light, resulting in charge transfer from optically excited CdSe NCs to the solvent-free liquid C 60 phase.

Thick electrophoretically deposited (EPD) films of ligand-capped colloidal nanocrystals that adhere to the substrate typically crack after they are removed from the deposition solvent due to the loss of residual solvent. We report the suppression of fracture in several micrometers thick EPD films of CdSe nanocrystals by treating the wet, as-deposited films with solutions containing the NC core-capping ligand, trioctylphosphine oxide (TOPO). The increase in TOPO ligand density increases photoluminescence of the dried film and leads to a decrease in elastic modulus.