論文 - 鈴木　厚志

Effects of light irradiation on the photovoltaic performance and crystal lattices of organic–inorganic perovskites in solar cells 国際誌

Haruto Shimada , Takeo Oku Tomoki Yamamoto, Iori Ono, Atsushi Suzuki, Kouichirou Harada,

Next Energy   8   100263   2025年3月

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記述言語：英語   掲載種別：研究論文（学術雑誌）   参加形態：共同（副担当）  

Fabrication and Characterization of CH3NH3PbI3 Perovskite Photovoltaic Devices with Decaphenylcyclopentasilane Hole Transport Layers 査読

Keisuke Kuroyanagi, Takeo Oku, Iori Ono, Haruto Shimada, Atsushi Suzuki, Tomoharu Tachikawa and Sakiko Fukunishi,

Coatings   15   253   2025年2月

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担当区分：責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.3390/coatings15030253

Fabrication and Characterization of Perovskite Solar Cells Using Metal Phthalocyanines and Naphthalocyanines

87 ( 1 )   6   2025年2月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

DOI： 10.3390/engproc2025087006

Effects of K- or Ge-additions to formamidinium-based perovskite crystals on electronic structures and photovoltaic properties

Ryo Sobajima, Takeo Oku, Riku Okumura, Iori Ono, Atsushi Suzuki, Tomoharu Tachikawa, Tomoya Hasegawa, Sakiko Fukunishi

Chemical Physics Letters   865   141937   2025年2月

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.1016/j.cplett.2025.141937

First-principles calculation on electronic structures, phonon dispersions, electronic and thermal conductivity and molecular dynamics of CsYbCl3 perovskite crystal

Atsushi Suzuki, Takeo Oku

Computational Condensed Matter   42   e01008   2025年1月

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担当区分：筆頭著者,　責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.1016/j.cocom.2025.e01008

Promoted formation of photoactive α-formamidinium cesium lead triiodide perovskite crystals by germanium addition 査読

Ayu Enomoto, Atsushi Suzuki, Takeo Oku and Haruto Shimada

Inorganics   13   15   2025年1月

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.3390/inorganics13010015

Electronic structures, thermal properties and molecular dynamics of CsGdCl3 and CsNdCl3 perovskite crystals by first-principles calculations

Atsushi Suzuki, Takeo Oku

Journal of Physics and Chemistry of Solids   194   112243   2024年8月

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担当区分：筆頭著者,　責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.1016/j.jpcs.2024.112243

Efects of metal phthalocyanine and naphthalocyanine on perovskite solar cells 査読

Atsushi Suzuki, Naoki Ohashi, Takeo Oku, Tomoharu Tachikawa, Tomoya Hasegawa, Sakiko Fukunishi

Journal of Electronic Materials   53   6049 - 6063   2024年7月

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担当区分：筆頭著者,　責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.1007/s11664-024-11324-1

Effects of neodymium or ytterbium addition to CH3NH3PbI3 perovskite solar cells inserted with decaphenylcyclopentasilane 査読

Kotaro Yamamoto, Atsushi Suzuki, Riku Okumura, Ayu Enomoto, Iori Ono, Takeo Oku, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa

Results in Surfaces and Interfaces   15   100224   2024年5月

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.rsurfi.2024.100224

Accelerated formation of photoactive formamidinium-based lead triiodide perovskite crystals by the addition of copper iodide 査読

Riku Okumura, Takeo Oku, Atsushi Suzuki

Chemistry of Inorganic Materials   3   100052   2024年4月

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担当区分：最終著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.cinorg.2024.100052

Electronic structures of lead-free Sn- or Ge-hybrid perovskite halides studied by first-principles calculation 査読

5   100174   2024年3月

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.hybadv.2024.100174

Effects of guanidinium iodide surface treatment on CH3NH3PbI3 perovskite solar cells with added decaphenylcyclopentasilane 査読

Keisuke Kuroyanagi, Takeo Oku, Iori Ono, Riku Okumura, Ayu Enomoto, Atsushi Suzuki, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa

Nano Trends   5   100030   2024年2月

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担当区分：最終著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.nwnano.2024.100030

Effects of alkali metals or Cu+ addition to α-FAPbI3 perovskite crystals on electronic structures and photovoltaic properties 査読

Riku Okumura, Takeo Oku, and Atsushi Suzuki

Japanese Journal of Applied Physics   63   02SP21   2024年1月

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担当区分：最終著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.35848/1347-4065/ad0dbc

Effects of ethylammonium and rubidium addition to guanidinium-based CH3NH3PbI3 perovskite photovoltaic devices prepared at 190 ◦C in ambient air 査読

Iori Ono, Takeo Oku, Atsushi Suzuki, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa

Materials Today Communications   38   107623   2023年11月

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担当区分：最終著者   記述言語：英語  

DOI： 10.1016/j.mtcomm.2023.107623

Electronic structures and photovoltaic properties of copper- or tin-doped cesium-based perovskite crystals 査読

Ayu Enomoto, Atsushi Suzuki, Takeo Oku, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa

Open Ceramics   16   100476   2023年9月

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担当区分：責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.oceram.2023.100476

Electronic structures and properties of lead-free cesium- or rubidium-based perovskite halide compounds by first-principles calculations 査読

Riku Okumura, Takeo Oku, Atsushi Suzuki

Nano Trends   4   100020   2023年9月

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担当区分：最終著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.nwnano.2023.100020

Electronic structures and molecular dynamics of gadolinium-doped FAPbI<inf>3</inf> perovskite crystals 査読

Suzuki A., Oku T.

Japanese Journal of Applied Physics   62 ( SK )   2023年8月

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japanese Journal of Applied Physics  

The additive effect of a gadolinium ion into a formamidinium lead iodide (FAPbI3) perovskite crystal on electronic structures and molecular dynamics was investigated for improving photovoltaic performance with stability. The electronic structures, band structure, partial density of state, and molecular dynamics were determined by first-principles calculation. The band distribution and charge transfer between the 5d orbital of the gadolinium atom, the 5p orbital of the iodine atom, and the 6p orbital of the lead atom promoted the carrier generation and diffusion related to short-circuit current density. The enthalpy and kinetic energy prompted stabilization of the gadolinium-doped crystal with a slight distortion of coordination structure, as compared with the decomposition of the FAPbI3 crystal. Diffusion coefficients of iodine and lead ions in the FAPbI3 crystal with defect were increased, predicting decomposition. The gadolinium-doped FAPbI3 perovskite crystal has great potential for applications in photovoltaic devices by improving photovoltaic performance.

DOI： 10.35848/1347-4065/acbec0

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First-principles calculations and device characterizations of formamidinium-cesium lead triiodide perovskite crystals stabilized by germanium or copper 査読

Enomoto A., Suzuki A., Oku T., Fukunishi S., Tachikawa T., Hasegawa T.

Japanese Journal of Applied Physics   62 ( SK )   2023年8月

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japanese Journal of Applied Physics  

To avoid formation of the photo-inactive δ-phase of formamidinium-cesium lead triiodide, copper or germanium was added to the perovskite compounds to stabilize the photoactive α-phase. It was found that the substitution of lead by germanium (Ge) or copper (Cu) provided the stabilization of the α-phase in the present work. The first-principles molecular dynamics calculations indicated that displacements of formamidinium molecules were suppressed by the Ge doping. X-ray diffraction results indicated that the Ge or Cu doping of the perovskite compounds could be effective for suppression the phase transition from α- to δ-phase.

DOI： 10.35848/1347-4065/acc6d8

Scopus

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First-principles calculation analysis and photovoltaic properties of Cu compound-added perovskite solar cells 査読

Okumura R., Oku T., Suzuki A., Fukunishi S., Tachikawa T., Hasegawa T.

Japanese Journal of Applied Physics   62 ( SK )   2023年8月

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japanese Journal of Applied Physics  

Experiments and first-principles calculations were performed to investigate the effects of Cu substitution in CH3NH3PbI3 perovskite crystals. The first-principles calculations indicated that the energy level of the Cu d orbital formed above the VB maximum would be an acceptor or defect level. The effect of Cu addition on device properties was investigated, and the device with added 2% Cu provided higher efficiencies than the standard device. On the other hand, the decrease in short-circuit current density with increasing Cu content would be attributed to the defect level of the Cu d orbitals. First-principles calculations and experimental results provided insight into the function of Cu in CH3NH3-based perovskite crystals.

DOI： 10.35848/1347-4065/accaef

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85157992003&origin=inward

Metallophtalocyanine Used Interface Engineering for Improving Long-Term Stability of Methylammonium Lead Triiodide Perovskite 査読

Chihiro Ogawa, Atsushi Suzuki, Takeo Oku, Sakiko Fukunishi, Tomoharu Tachikawa, and Tomoya Hasegawa

Phys. Status Solidi A   220 ( 12 )   2300038   2023年6月

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担当区分：責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1002/pssa.202300038