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Makoto Okano
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Photocarrier localization and recombination dynamics in Cu2ZnSnS4 single crystals
Q Le Phuong, M Okano, Y Yamada, A Nagaoka, K Yoshino, Y Kanemitsu
Applied Physics Letters 103 (19), 2013
532013
Anisotropic optical response of optically opaque elastomers with conductive fillers as revealed by terahertz polarization spectroscopy
M Okano, S Watanabe
Scientific reports 6 (1), 39079, 2016
452016
Degradation mechanism of perovskite CH3NH3PbI3 diode devices studied by electroluminescence and photoluminescence imaging spectroscopy
M Okano, M Endo, A Wakamiya, M Yoshita, H Akiyama, Y Kanemitsu
Applied Physics Express 8 (10), 102302, 2015
452015
Trion formation and recombination dynamics in hole-doped single-walled carbon nanotubes
T Nishihara, Y Yamada, M Okano, Y Kanemitsu
Applied Physics Letters 103 (2), 2013
422013
Fast dissociation and reduced auger recombination of multiple excitons in closely packed PbS nanocrystal thin films
T Nishihara, H Tahara, M Okano, M Ono, Y Kanemitsu
The Journal of Physical Chemistry Letters 6 (8), 1327-1332, 2015
312015
Temperature-dependent photocarrier recombination dynamics in Cu2ZnSnS4 single crystals
LQ Phuong, M Okano, Y Yamada, A Nagaoka, K Yoshino, Y Kanemitsu
Applied Physics Letters 104 (8), 2014
302014
Ultrafast free-carrier dynamics in Cu2ZnSnS4 single crystals studied using femtosecond time-resolved optical spectroscopy
LQ Phuong, M Okano, Y Yamada, G Yamashita, T Morimoto, M Nagai, ...
Applied Physics Letters 105 (23), 2014
292014
Free-carrier dynamics and band tails in : Evaluation of factors determining solar cell efficiency
M Okano, G Yamashita, M Nagai, M Ashida, A Nagaoka, K Yoshino, ...
Physical Review B 92 (11), 115204, 2015
272015
Slow intraband relaxation and localization of photogenerated carriers in thin films: Evidence for the existence of long-lived high-energy carriers
M Okano, Y Takabayashi, T Sakurai, K Akimoto, H Shibata, S Niki, ...
Physical Review B 89 (19), 195203, 2014
272014
Evaluation of crystallinity and hydrogen bond formation in stereocomplex poly (lactic acid) films by terahertz time-domain spectroscopy
J Hirata, N Kurokawa, M Okano, A Hotta, S Watanabe
Macromolecules 53 (16), 7171-7177, 2020
242020
Polarization-sensitive electro-optic detection of terahertz wave using three different types of crystal symmetry: Toward broadband polarization spectroscopy
K Oguchi, H Iwasaki, M Okano, S Watanabe
Applied Physics Letters 108 (1), 2016
242016
Light-stimulated carrier dynamics of CuInS 2/CdS heterotetrapod nanocrystals
M Sakamoto, K Inoue, M Okano, M Saruyama, S Kim, YG So, K Kimoto, ...
Nanoscale 8 (18), 9517-9520, 2016
232016
Internal triaxial strain imaging of visibly opaque black rubbers with terahertz polarization spectroscopy
A Moriwaki, M Okano, S Watanabe
Apl Photonics 2 (10), 2017
222017
Controlled terahertz birefringence in stretched poly (lactic acid) films investigated by terahertz time-domain spectroscopy and wide-angle X-ray scattering
H Iwasaki, M Nakamura, N Komatsubara, M Okano, M Nakasako, H Sato, ...
The Journal of Physical Chemistry B 121 (28), 6951-6957, 2017
222017
Photoinduced carrier dynamics of nearly stoichiometric oleylamine-protected copper indium sulfide nanoparticles and nanodisks
M Sakamoto, L Chen, M Okano, DM Tex, Y Kanemitsu, T Teranishi
The Journal of Physical Chemistry C 119 (20), 11100-11105, 2015
212015
Assessment of hot-carrier effects on charge separation in type-II CdS/CdTe heterostructured nanorods
M Okano, M Sakamoto, T Teranishi, Y Kanemitsu
The Journal of Physical Chemistry Letters 5 (17), 2951-2956, 2014
212014
Observation of excited-state excitons and band-gap renormalization in hole-doped carbon nanotubes using photoluminescence excitation spectroscopy
Y Kimoto, M Okano, Y Kanemitsu
Physical Review B 87 (19), 195416, 2013
192013
Anisotropic percolation conduction in elastomer-carbon black composites investigated by polarization-sensitive terahertz time-domain spectroscopy
M Okano, M Fujii, S Watanabe
Applied Physics Letters 111 (22), 2017
182017
Photocarrier dynamics in CIGS, CZTS, and related materials revealed by ultrafast optical spectroscopy
M Okano, LQ Phuong, Y Kanemitsu
physica status solidi (b) 252 (6), 1219-1224, 2015
182015
Photocarrier dynamics in undoped and Na-doped Cu2ZnSnS4 single crystals revealed by ultrafast time-resolved terahertz spectroscopy
P Le Quang, M Okano, G Yamashita, M Nagai, M Ashida, A Nagaoka, ...
Applied Physics Express 8 (6), 062303, 2015
182015
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