Papers - OKU Takeo
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Crystal structures of perovskite halide compounds used for solar cells Reviewed International journal
T. Oku
Reviews on Advanced Materials Science 59 264 - 305 2020.7
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Effects of light irradiation on the photovoltaic performance and crystal lattices of organic–inorganic perovskites in solar cells
H. Shimada, T. Oku, I. Ono, A. Suzuki, H. Iwakuni, T. Yamamoto, and K. Harada
Next Energy 8 100263 2025.7
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Fabrication and characterization of CH3NH3PbI3 perovskite photovoltaic devices with decaphenylcyclopentasilane hole transport layers
K. Kuroyanagi, T. Oku, I. Ono, H. Shimada, A. Suzuki, T. Tachikawa, and S. Fukunishi
Coatings 15 253-1 - 253-8 2025.2
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Fabrication and characterization of perovskite solar cells using metal phthalocyanines and naphthalocyanines Reviewed
A. Suzuki, N. Ohashi, T. Oku, T. Tachikawa, T. Hasegawa, and S. Fukunishi
Engineering Proceedings 87 6-1 - 6-8 2025.2
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Effects of potassium- or germanium-addition to methylammonium-formamidinium-based perovskite photovoltaic devices Reviewed
R. Sobajima, T. Oku, R. Okumura, I. Ono, A. Suzuki, T. Tachikawa, T. Hasegawa, S. Fukunishi
Chemical Physics Letters 865 141937-1 - 141937-7 2025.2
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First-principles calculation on electronic structures, phonon dispersions, electronic and thermal conductivity and molecular dynamics of CsYbCl3 perovskite crystal Reviewed
A. Suzuki, T. Oku
Computational Condensed Matter 42 e01008-1 - e01008-13 2025.1
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Promoted formation of photoactive α-formamidinium cesium lead triiodide perovskite crystals by germanium addition Reviewed
A. Enomoto, A. Suzuki, T. Oku, and H. Shimada
Inorganics 13 15-1 - 15-11 2025.1
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Improvement of the photoelectric conversion efficiencies of a half-photocell using electrodeposited poly(2,2’-bithiophene) through the incorporation of meso-tetra(3-thienyl)porphyrin and electrodeposited poly(3,4-ethylenedioxythiophene) Reviewed
K. Kanbe, Y. Kumagawa, S. Hirata, T. Oku, and T. Akiyama
Japanese Journal of Applied Physics 63 121005 2024.12
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Formation of orthorhombic CH3NH3PbI3 perovskite co-doped with ytterbium and gadolinium Reviewed
R. Tanaka, A. Suzuki, T. Oku, T. Tachikawa, S. Fukunishi
Chemical Physics Letters 856 141679-1 - 141679-5 2024.10
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Stable decaphenylcyclopentasilane hole transport layers for double-stacked perovskite photovoltaic devices fabricated under ambient atmosphere Reviewed
I. Ono, T. Oku, Y. Genko, R. Okumura, T. Nasu, S. Mizuno, T. Tachikawa, T. Hasegawa, S. Fukunishi
Chemistry of Inorganic Materials 4 100066-1 - 100066-8 2024.9
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Electronic structures, thermal properties and molecular dynamics of CsGdCl3 and CsNdCl3 perovskite crystals by first-principles calculations Reviewed
A. Suzuki and T. Oku
Journal of Physics and Chemistry of Solids 194 112243-1 - 112243-13 2024.8
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Accelerated formation of photoactive formamidinium-based lead triiodide perovskite crystals by the addition of copper iodide Reviewed
R. Okumura, T. Oku, A. Suzuki
Chemistry of Inorganic Materials 3 100052-1 - 100052-10 2024.8
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Effects of halogens and alkali metals on guanidinium-ethylammonium hybrid-doped perovskite photovoltaic devices Reviewed
H. Shimada, T. Oku, I. Ono, R. Okumura, K. Kuroyanagi, A. Suzuki, T. Tachikawa, T. Hasegawa, S. Fukunishi
Hybrid Advances 6 100252-1 - 100252-8 2024.7
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Effects of metal phthalocyanine and naphthalocyanine on perovskite solar cells Reviewed
A. Suzuki, N. Ohashi, T. Oku, T. Tachikawa, T. Hasegawa, and Sakiko Fukunishi
Journal of Electronic Materials 53 6049 - 6063 2024.7
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Fabrication and photocurrent generation properties of C60-ethylenediamine adduct microparticles film modified with poly(3-hexylthiophene-2,5-diyl) Reviewed
M. Tanaka, K. Kanbe, S. Banya, T. Oku, T. Akiyama
Molecular Crystals and Liquid Crystals 541 - 551 2024.5
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Effects of neodymium or ytterbium addition to CH3NH3PbI3 perovskite solar cells inserted with decaphenylcyclopentasilane Reviewed
K. Yamamoto, A. Suzuki, R. Okumura, A. Enomoto, I. Ono, T. Oku, S. Fukunishi, T. Tachikawa, T. Hasegawa
Results in Surfaces and Interfaces 15 100224-1 - 100224-8 2024.5
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ペロブスカイト結晶薄膜と安定性 Invited
Journal of Japan Solar Energy Society（日本太陽エネルギー学会学会誌：太陽エネルギー） 50 ( 2 ) 18 - 23 2024.3
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Electronic structures of lead-free Sn- or Ge-hybrid perovskite halides studied by first-principles calculation Reviewed
Y.-C. Kuo, T. Oku, A. Suzuki, I. Ono, R. Okumura
Hybrid Advances 5 100174-1 - 100174-10 2024.3
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Electronic structures of ABX3 perovskite crystals with a monovalent copper ion as the A-site cation Reviewed
R. Okumura, T. Oku, A. Suzuki
Chemical Physics Impact 8 (2024) . 8 100534-1 - 100534-8 2024.2
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Effects of guanidinium iodide surface treatment on CH3NH3PbI3 perovskite solar cells with added decaphenylcyclopentasilane Reviewed
K. Kuroyanagi, T. Oku, I. Ono, R. Okumura, A. Enomoto, A. Suzuki, S. Fukunishi, T. Tachikawa, T. Hasegawa
Nano Trends 5 5 100030-1 - 100030-11 2024.2