Title :
Optical pump — Multi-THz probe spectroscopy of a single crystal organic hybrid lead halide perovskite
Author :
Valverde-Chavez, David A. ; Ponseca, Carlito S. ; Stoumpos, Constantinos ; Yartsev, Arkady ; Kanatzidis, Mercouri G. ; Sundstrom, Villy ; Cooke, David G.
Author_Institution :
Dept. of Phys., McGill Univ., Montreal, QC, Canada
Abstract :
We analyzed ultrafast photocarrier generation in single crystal CH3NH3PbI3 perovskite through time-resolved terahertz spectroscopy. We find a Drude-Lorentz type conductivity spectra with a carrier mobility of 35 cm2/Vs and a Lorentzian component at 45 meV possibly due to intra-excitonic transitions.
Keywords :
carrier mobility; excitons; high-speed optical techniques; optical pumping; organic compounds; organic-inorganic hybrid materials; terahertz wave spectra; time resolved spectra; Drude-Lorentz type conductivity spectra; Lorentzian component; carrier mobility; electron volt energy 45 meV; intraexcitonic transitions; multiTHz probe spectroscopy; optical pump; single crystal organic hybrid lead halide perovskite; time-resolved terahertz spectroscopy; ultrafast photocarrier generation; Conductivity; Crystals; Laser beams; Laser excitation; Particle beams; Probes; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA