Journal article
Conductivity in organic semiconductors hybridized with the vacuum field
E Orgiu, J George, JA Hutchison, E Devaux, JF Dayen, B Doudin, F Stellacci, C Genet, J Schachenmayer, C Genes, G Pupillo, P Samorì, TW Ebbesen
Nature Materials | NATURE PUBLISHING GROUP | Published : 2015
DOI: 10.1038/nmat4392
Abstract
Much effort over the past decades has been focused on improving carrier mobility in organic thin-film transistors by optimizing the organization of the material or the device architecture. Here we take a different path to solving this problem, by injecting carriers into states that are hybridized to the vacuum electromagnetic field. To test this idea, organic semiconductors were strongly coupled to plasmonic modes to form coherent states that can extend over as many as 10 5 molecules and should thereby favour conductivity. Experiments show that indeed the current does increase by an order of magnitude at resonance in the coupled state, reflecting mostly a change in field-effect mobility. A t..
View full abstractGrants
Awarded by National Center for Atmospheric Research
Funding Acknowledgements
This work was supported in part by USIAS, the ERC through the projects Plasmonics (227557), Suprafunction (257305), and Coldsim (307688), the International Center for Frontier Research in Chemistry (icFRC, Strasbourg), the ANR Equipex Union (ANR-10-EQPX-52-01), the Labex NIE projects (ANR-11-LABX-0058 NIE) and CSC (ANR-10-LABX-0026 CSC) within the Investissement d'Avenir program ANR-10-IDEX-0002-02, RYSQ, as well as the NSF (PIF-1211914 and PFC-1125844), EOARD (FA8655-13-1-3032) and the Austrian Science Fund (FWF) via the project P24968-N27. Computations made use of the Janus supercomputer, supported by NSF (CNS-0821794), NCAR and CU Boulder/Denver.