Počet záznamů: 1

Charge transport in nanostructured materials for solar energy conversion studied by time-resolved terahertz spectroscopy

  1. 1.
    0350339 - FZU-D 2011 RIV CH eng J - Článek v odborném periodiku
    Němec, Hynek - Kužel, Petr - Sundström, V.
    Charge transport in nanostructured materials for solar energy conversion studied by time-resolved terahertz spectroscopy.
    Journal of Photochemistry and Photobiology A-Chemistry. Roč. 215, 2-3 (2010), s. 123-139 ISSN 1010-6030
    Grant CEP: GA ČR(CZ) GP202/09/P099; GA AV ČR(CZ) IAA100100902; GA MŠk LC512
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: time-resolved terahertz spectroscopy * ultrafast dynamics * bulk heterojunction * semiconductor nanostructures * transport * mobility
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 2.243, rok: 2010

    Spectra of far-infrared conductivity contain useful information on charge transport at nanoscopic length scales. However, decrypting the mechanisms and parameters of charge transport from the measured spectra is a complex task in nanostructured systems: in particular, the conductivity is strongly influenced by charge carrier interaction with surfaces or interfaces between constituents of the composite material as well as by local field effects. Here we review our work on transient far-infrared conductivity in polymer:fullerene bulk heterojunctions and in bare and dye-sensitized semiconductor nanoparticles. Measurements performed by time-resolved terahertz spectroscopy are complemented by Monte-Carlo calculations which clearly link the charge transport properties and the terahertz conductivity spectra.
    Trvalý link: http://hdl.handle.net/11104/0006131