Abstract- Hot photocarrier dynamics in organic solar cells measured by transient absorption and time-resolved terahertz spectroscopy

Paul A. Lane ; Paul D. Cunningham ; Joseph S. Melinger ; Edwin J. Heilweil

http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1915636

Paul A. Lane, Paul D. Cunningham, Joseph S. Melinger

U.S. Naval Research Lab. (United States)

Edwin J. Heilweil

National Institute of Standards and Technology (United States)

Proc. SPIE 9184, Organic Photovoltaics XV, 91840G (October 6, 2014); doi:10.1117/12.2062253

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We present a study of charge transfer and carrier dynamics in films of zinc phthalocyanine (ZnPc) and buckmisnsterfullerene (C60) by investigated by time-resolved terahertz spectroscopy (TRTS). We compare terahertz photoconductivity dynamics in composite and multi-layered films of C60 and ZnPc. The few picosecond terahertz photoconductivity dynamics arise from autoionization and recombination between C60 molecules and cooling of hot photocarriers following from charge transfer between C60 and ZnPc. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.