Title :
Sub-picosecond time-dependent mobility in low-band-gap polyphenylene:Fullerene blend probed by terahertz spectroscopy
Author :
Nemec, Hynek ; Nienhuys, Han-Kwang ; Perzon, Erik ; Zhang, Fengling ; Inganas, Olle ; Kuzel, Petr ; Sundstrom, Villy
Author_Institution :
Dept. of Chem. Phys., Lund Univ., Lund
Abstract :
Time-resolved terahertz spectroscopy is used to investigate photoinduced dynamics of charge carriers in a polymer heterojunction. We directly observe instantaneous generation of highly mobile charge carriers followed by a rapid drop in their mobility.
Keywords :
carrier mobility; fullerene compounds; high-speed optical techniques; organic semiconductors; photoconductivity; polymer blends; semiconductor heterojunctions; submillimetre wave spectra; low-band-gap polyphenylene-fullerene blend; photoinduced charge carrier dynamics; polymer heterojunction; subpicosecond time-dependent mobility; time-resolved terahertz spectroscopy; Charge carriers; Conductivity measurement; Delay; Electrons; Optical polymers; Physics; Pulse amplifiers; Pulse measurements; Spectroscopy; Ultrafast optics; (260.7120) Ultrafast phenomena; (300.6495) Spectroscopy, terahertz; (300.6500) Spectroscopy, timeresolved; (300.6530) Spectroscopy, ultrafast;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
