TY - GEN
T1 - Vertical aligned nanorod assembly by electrophoretic deposition from organic solvents
AU - Ryan, Kevin M.
AU - Ahmed, S.
PY - 2009
Y1 - 2009
N2 - The perpendicular alignment of II-VI nanorods in hybrid nanorod/polymer and all-nanorod solar cells is sought to reduce charge recombination by providing directional charge pathways to the electrodes. Here we describe the organization of II-VI nanorods into perpendicular assemblies over centimeter squared areas by a novel electrophoretic deposition approach. Monolayer assemblies are obtained by completely immersing parallel electrodes in a dilute solution of pyrolysis synthesized nanorods. The negatively charged nanorods deposit on the positive ITO electrode in ordered arrays which completely coat the electrode surface. The nanorods are hexagonally close packed with an interparticle separation of 2 nm occupied by interdigitated phosphonic acid surfactants. The nanorods are characterized by TEM, HRTEM, and HRSEM. This approach allows deposition of CdSe, CdS and CdTe nanorods in very large areas optimal for perpendicularly aligned nanorod solar cell application.
AB - The perpendicular alignment of II-VI nanorods in hybrid nanorod/polymer and all-nanorod solar cells is sought to reduce charge recombination by providing directional charge pathways to the electrodes. Here we describe the organization of II-VI nanorods into perpendicular assemblies over centimeter squared areas by a novel electrophoretic deposition approach. Monolayer assemblies are obtained by completely immersing parallel electrodes in a dilute solution of pyrolysis synthesized nanorods. The negatively charged nanorods deposit on the positive ITO electrode in ordered arrays which completely coat the electrode surface. The nanorods are hexagonally close packed with an interparticle separation of 2 nm occupied by interdigitated phosphonic acid surfactants. The nanorods are characterized by TEM, HRTEM, and HRSEM. This approach allows deposition of CdSe, CdS and CdTe nanorods in very large areas optimal for perpendicularly aligned nanorod solar cell application.
UR - http://www.scopus.com/inward/record.url?scp=77954259611&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77954259611
SN - 9781617383939
T3 - Materials Research Society Symposium Proceedings
SP - 36
EP - 40
BT - Next-Generation and Nano-Architectured Photovoltaics
T2 - 2009 MRS Fall Meeting
Y2 - 30 November 2009 through 4 December 2009
ER -