AVS 56th International Symposium & Exhibition
    Nanometer-scale Science and Technology Tuesday Sessions
       Session NS1+PV-TuA

Paper NS1+PV-TuA12
Modification and Characterization of Transparent Conducting Oxides for Generation III Nanostructured Photovoltaics

Tuesday, November 10, 2009, 5:40 pm, Room A8

Session: Organic Photovoltaics I
Presenter: D. Placencia, University of Arizona
Authors: D. Placencia, University of Arizona
N. Armstrong, University of Arizona
Correspondent: Click to Email
Indium-Tin oxide (ITO), Indium-Zinc oxide (IZO), and Antimony-doped tin oxide (ATO) substrates were modified with ca. 3-5 nm gold nanoparticles to characterize their effect on the performance of Generation III organic photovoltaics (OPVs). This talk will focus on the presumed mechanism for their deposition, their impact on rates of electron transfer (solution), and OPV device performance parameters. ITO, IZO, and ATO thin films were deposited via magnetron sputtering and modified through a deposition-precipitation protocol. X-ray, UV photoelectron, and polarization modulated infrared reflection absorption spectrocopies were used to characterize the interfacial composition, work function changes, and the molecular nature of Au NP nucleation and growth. Planar heterojunction OPVs were created to evaluate the efficacy of oxide modification with metal nanoparticles, as an intermediate step towards the improvement of charge collection at the organic/oxide interface in organic solar cells.