AVS 56th International Symposium & Exhibition
    Nanometer-scale Science and Technology Wednesday Sessions
       Session NS-WeM

Paper NS-WeM10
Effect of Functional Substrates on Optoelectronic Properties of Hybrid Nanostructures

Wednesday, November 11, 2009, 11:00 am, Room L

Session: Nanoscale Devices and Sensors and Welch Award
Presenter: D. Conklin, University of Pennsylvania
Authors: D. Conklin, University of Pennsylvania
P. Banerjee, University of Maryland
S.U. Nanayakkara, University of Pennsylvania
T.-H. Park, University of Michigan
M.J. Therien, Duke University
D.A. Bonnell, University of Pennsylvania
Correspondent: Click to Email
Functionalized gold nanoparticles are assembled on ferroelectric and non ferroelectric substrates. The assemblies are designed to exhibit photoconductivity by controlling particle size, distribution, density, and by linking with optically active porphyrin complexes. The wavelength and temperature dependence of transport is used to determine the effect of the substrate on the optoelectronic properties. Specifically, the effect of substrate local field due to the domain polarization is determined by comparing the response of similar nanostructures on non ferroelectric (SiOx) substrates. Activation energies of high temperature transport mechanisms and tunneling parameters of low temperature transport mechanisms are compared. The combination of optoelectronic molecular nanostructures and a functional substrate suggests new device strategies.