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Kohei Yamamoto
Kohei Yamamoto
AIST
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Ionic liquid-assisted growth of methylammonium lead iodide spherical nanoparticles by a simple spin-coating method and photovoltaic properties of perovskite solar cells
M Shahiduzzaman, K Yamamoto, Y Furumoto, T Kuwabara, K Takahashi, ...
RSC Advances 5 (95), 77495-77500, 2015
742015
Improved Reproducibility and Intercalation Control of Efficient Planar Inorganic Perovskite Solar Cells by Simple Alternate Vacuum Deposition of PbI2 and CsI
M Shahiduzzaman, K Yonezawa, K Yamamoto, TS Ripolles, M Karakawa, ...
ACS Omega 2 (8), 4464-4469, 2017
492017
Annealing effects on CsPbI3-based planar heterojunction perovskite solar cells formed by vacuum deposition method
K Yonezawa, K Yamamoto, M Shahiduzzaman, Y Furumoto, K Hamada, ...
Japanese Journal of Applied Physics 56 (4S), 04CS11, 2017
372017
Viscosity effect of ionic liquid-assisted controlled growth of CH3NH3PbI3 nanoparticle-based planar perovskite solar cells
M Shahiduzzaman, K Yamamoto, Y Furumoto, K Yonezawa, K Hamada, ...
Organic Electronics 48, 147-153, 2017
332017
Interfacial modification of the electron collecting layer of low-temperature solution-processed organometallic halide photovoltaic cells using an amorphous perylenediimide
T Adhikari, M Shahiduzzaman, K Yamamoto, O Lebel, JM Nunzi
Solar Energy Materials and Solar Cells 160, 294-300, 2017
312017
Enhanced photovoltaic performance of perovskite solar cells via modification of surface characteristics using a fullerene interlayer
M Shahiduzzaman, K Yamamoto, Y Furumoto, T Kuwabara, K Takahashi, ...
Chemistry Letters 44 (12), 1735-1737, 2015
312015
Interface engineering of compact-TiOx in planar perovskite solar cells using low-temperature processable high-mobility fullerene derivative
M Shahiduzzaman, M Karakawa, K Yamamoto, T Kusumi, K Yonezawa, ...
Solar Energy Materials and Solar Cells 178, 1-7, 2018
292018
Vacuum deposition of CsPbI3 layers on textured Si for Perovskite/Si tandem solar cells
K Hamada, K Yonezawa, K Yamamoto, T Taima, S Hayase, N Ooyagi, ...
Japanese Journal of Applied Physics 58 (SB), SBBF06, 2019
272019
Sexithiophene-Based Photovoltaic Cells with High Light Absorption Coefficient via Crystalline Polymorph Control
T Taima, M Shahiduzzaman, T Ishizeki, K Yamamoto, M Karakawa, ...
The Journal of Physical Chemistry C 121 (36), 19699-19704, 2017
232017
Thermal Control of PbI2 Film Growth for Two-Step Planar Perovskite Solar Cells
M Shahiduzzaman, K Hamada, K Yamamoto, M Nakano, M Karakawa, ...
Crystal Growth & Design 19 (9), 5320-5325, 2019
202019
Shape-controlled CH3NH3PbI3 nanoparticles for planar heterojunction perovskite solar cells
M Shahiduzzaman, K Yamamoto, Y Furumoto, T Kuwabara, K Takahashi, ...
Japanese Journal of Applied Physics 55 (2S), 02BF05, 2016
152016
Molecular orientation control of semiconducting molecules using a metal layer formed by wet processing
K Yamamoto, M Shahiduzzaman, A Yamada, T Takaya, T Chikamatsu, ...
Organic Electronics 63, 47-51, 2018
132018
Identifying Molecular Orientation in a Bulk Heterojunction Film by Infrared Reflection Absorption Spectroscopy
T Chikamatsu, M Shahiduzzaman, K Yamamoto, M Karakawa, ...
ACS Omega 3 (5), 5678-5684, 2018
132018
Degradation mechanism for planar heterojunction perovskite solar cells
K Yamamoto, Y Furumoto, M Shahiduzzaman, T Kuwabara, K Takahashi, ...
Japanese Journal of Applied Physics 55 (4S), 04ES07, 2016
132016
Study of planar heterojunction perovskite photovoltaic cells using compact titanium oxide by chemical bath deposition
K Yamamoto, T Kuwabara, K Takahashi, T Taima
Japanese Journal of Applied Physics 54 (8S1), 08KF02, 2015
102015
Influence of coating steps of perovskite on low-temperature amorphous compact TiO x upon the morphology, crystallinity, and photovoltaic property correlation in planar …
M Shahiduzzaman, Y Furumoto, K Yamamoto, K Yonezawa, Y Azuma, ...
Japanese Journal of Applied Physics 57 (3S2), 03EJ06, 2018
82018
Temperature-dependent ion migration and mobile-ion-induced degradation of perovskite solar cells under illumination
T Tayagaki, K Yamamoto, TN Murakami, M Yoshita
Solar Energy Materials and Solar Cells 257, 112387, 2023
52023
Germanium ion doping of CsPbI3 to obtain inorganic perovskite solar cells with low temperature processing
A Kogo, K Yamamoto, TN Murakami
Japanese Journal of Applied Physics 61 (2), 020904, 2022
52022
Insights into Microscopic Crystal Growth Dynamics of CH3NH3PbI3 under a Laser Deposition Process Revealed by In Situ X-ray Diffraction
T Miyadera, Y Auchi, K Yamamoto, N Ohashi, T Koganezawa, H Yaguchi, ...
ACS Applied Materials & Interfaces 13 (19), 22559-22566, 2021
42021
Interpenetrating heterojunction photovoltaic cells based on C60 nano-crystallized thin films
K Nojiri, M Shahiduzzaman, K Yamamoto, T Kuwabara, K Takahashi, ...
Organic Electronics 38, 107-114, 2016
42016
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