| AVS 57th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology | Wednesday Sessions |
| Session NS+EM+EN-WeA |
| Session: | Photonic and Plasmonic Materials and Devices |
| Presenter: | D.J. Conklin, University of Pennsylvania |
| Authors: | D.J. Conklin, University of Pennsylvania S.U. Nanayakkara, University of Pennsylvania T.-H. Park, University of Pennsylvania J.T. Stecher, Duke University M.J. Therien, Duke University D.A. Bonnell, University of Pennsylvania |
| Correspondent: | Click to Email |
Recently we demonstrate plasmon-induced electronic transport in hybrid metal nanoparticle-molecular devices that realized enhancements of up to a factor of 200. This was realized in a hybrid structure that consists of an array of gold nanoparticles linked by (porphinato)zinc(II) oligomers. Here we examine the role of metal particle size, spacing, molecular length and radiation power on the photoconductive properties. Controlling these parameters allows the relative roles of nano antennae focus increasing effective photon flux and hot electron distribution to the current enhancement to be compared.
This phenomenon offers a pathway to selectively enhance specific optical energies or to design a hybrid structure that can simultaneously enhance a range of optical wavelengths. Applications in optical devices and a range of photovoltaics could exploit this new phenomenon [ACS Nano, 2010, 4 (2), pp 1019-1025] .