The dynamical processes of radiative recombination of photocarriers and reabsorption of emitted photons in CH3NH3PbBr3 single crystals are studied using time-resolved two-photon-excitation photoluminescence (PL) microscopy. We find that the PL spe...
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY 6(6) M3062-M3064 2017年 [査読有り]
The photophysics of trions in single-walled carbon nanotubes (SWCNTs) is reviewed briefly. The trion state is observed energetically below the exciton state in hole-doped SWCNTs, and shows a simple single-exponential decay. The decay dynamics of t...
JOURNAL OF PHYSICAL CHEMISTRY LETTERS 7(13) 2316-2321 2016年7月 [査読有り]
We have investigated the dynamic optical properties of CH3NH3PbI3 (MAPbI(3)) perovskite thin films at low temperatures using time-resolved photoluminescence, optical transient absorption (TA), and THz TA spectroscopy. Optical spectroscopic results...
The Journal of Physical Chemistry Letters 7(11) 1972-1977 2016年5月 [査読有り]
The fast-decaying component of photoluminescence (PL) under very weak pulse photoexcitation is dominated by the rapid relaxation of the photoexcited carriers into a small number of carrier-trapping defect states. Here, we report the subnanosecond ...