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

fYear

2008

fDate

4-9 May 2008

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

iet

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

Type

conf

Filename

4572746