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伊澤誠一郎 研究業績一覧 (90件)
論文
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QINGJUN SHUI,
Shiqi Shan,
Yong-Chang Zhai,
Shinobu Aoyagi,
Seiichiro Izawa,
Miftakhul Huda,
Chu-Yang Yu,
Lijian Zuo,
Hongzheng Chen,
Hao-Sheng Lin,
Yutaka Matsuo.
Evaporable Fullerene Indanones with Controlled Amorphous Morphology as Electron Transport Layers for Inverted Perovskite Solar Cells,
Journal of the American Chemical Society,
Dec. 2023.
公式リンク
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Shurong Miao,
Ryosuke Nitta,
Seiichiro Izawa,
Yutaka Majima.
Bottom Contact 100 nm Channel‐Length α‐In2Se3 In‐Plane Ferroelectric Memory,
Advanced Science,
Oct. 2023.
公式リンク
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Hironori Kobayashi,
Seiichiro Izawa,
Chitoshi Kitamura,
Masahiro Hiramoto,
Katsuhiko Ono.
Dioxaborin Compounds with Terminal Carbazole Groups: Enhancing Electron Acceptor in Organic Photovoltaics,
Asian Journal of Organic Chemistry,
Oct. 2023.
公式リンク
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Yasuo,
Kosei Ito,
Riku Takeuchi,
Ryohei Tsuruta,
Kaname Yamauchi,
Seiichiro Izawa,
Masahiro Hiramoto,
Rosantha Kumara,
tomoyuki koganezawa.
Well-ordered molecular heterojunction of epitaxial C60 on single-crystal dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT),
Applied Physics Express,
Oct. 2023.
公式リンク
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Seiichiro Izawa,
Masahiro Morimoto,
Keisuke Fujimoto,
Koki Banno,
Yutaka Majima,
Masaki Takahashi,
Shigeki Naka,
Masahiro Hiramoto.
Blue organic light-emitting diode with a turn-on voltage of 1.47 V,
Nature Communications,
Sept. 2023.
公式リンク
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Shurong Miao,
Ryosuke Nitta,
Seiichiro Izawa,
YUTAKA MAJIMA.
Bottom contact 100nm channel-length α-In2Se3 in-plane ferroelectric memory,
Advanced Science,
10,
2303032,
Aug. 2023.
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Jaseela Palassery Ithikkal,
Seiichiro Izawa,
Masahiro Hiramoto.
Doped Lateral Organic Photovoltaic Cells,
physica status solidi (a),
June 2023.
公式リンク
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Seiichiro Izawa.
9‐1: Invited Paper: Triplet‐Triplet Annihilation at Organic Semiconductor Interface for Efficient Solid‐State Photon Upconversion and Organic Light‐Emitting Diodes with Low Driving Voltage,
SID Symposium Digest of Technical Papers,
June 2023.
公式リンク
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Yuki Uehashi,
Seiichiro Izawa,
Yuya Yamada,
Yohei Miwa,
Toshiyasu Inuzuka,
Yasuhiro Kubota,
Masahiro Hiramoto,
Kazumasa Funabiki.
Synthesis of Highly Photostable Benzoindolenine‐Based Squaraine Dyes by using Aromatic Fluorine Atoms,
ChemistrySelect,
Vol. 8,
No. 12,
Mar. 2023.
公式リンク
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Y. Sakamoto,
S. Izawa,
H. Ohkita,
M. Hiramoto,
Y. Tamai.
Triplet sensitization via charge recombination at organic heterojunction for efficient near-infrared to visible solid-state photon upconversion,
Communications Materials,
3,
76,
Oct. 2022.
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H. Ueno,
D. Kitabatake,
H. Lin,
S. Izawa,
M. Hiramoto,
F. Misaizu,
S. Maruyama,
Y. Matsuo.
Synthesis of neutral Li-endohedral PCBM: an n-dopant for fullerene derivatives,
Chemical Communications,
58,
10190-10193,
Aug. 2022.
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S. Izawa,
M. Morimoto,
S. Naka,
M. Hiramoto.
Spatial distribution of triplet excitons formed from charge transfer states at the donor/acceptor interface,
Journal of Materials Chemistry A,
May 2022.
公式リンク
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S. Izawa,
M. Morimoto,
S. Naka,
M. Hiramoto.
Efficient Interfacial Upconversion Enabling Bright Emission at an Extremely Low Driving Voltage in Organic Light‐Emitting Diodes,
Advanced Optical Materials,
pp. 2101710,
Jan. 2022.
公式リンク
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J. Lee,
M. Hiramoto,
S. Izawa.
Simultaneous measurement of photocurrent and recombination emission in organic solar cell,
Japanese Journal of Applied Physics,
Vol. 61,
No. 1,
pp. 011001,
Jan. 2022.
公式リンク
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Seiichiro Izawa,
Masahiro Hiramoto.
Efficient solid-state photon upconversion enabled by triplet formation at an organic semiconductor interface,
Nature Photonics,
Vol. 15,
No. 12,
pp. 895-900,
Dec. 2021.
公式リンク
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K. Takahashi,
S. Izawa,
M. Hiramoto,
Y. Nakayama.
Quasi-Homoepitaxial Junction of Organic Semiconductors: A Structurally Seamless but Electronically Abrupt Interface between Rubrene and Bis(trifluoromethyl)dimethylrubrene,
The Journal of Physical Chemistry Letters,
Vol. 12,
No. 46,
pp. 11430-11437,
Nov. 2021.
公式リンク
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J. P. Ithikkal,
Y. Yabara,
S. Izawa,
S. Uto,
M. Hiramoto.
Lateral-tandem organic photovoltaic cells with carrier transport and generation layers,
Applied Physics Express,
Vol. 14,
No. 10,
pp. 101003,
Oct. 2021.
公式リンク
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Seiichiro Izawa,
K. Uchida,
M. Nakamura,
K. Fujimoto,
J. Roudin,
J. Lee,
T. Inuzuka,
T. Nakamura,
M. Sakamoto,
Y. Nakayama,
M. Hiramoto.
Influence of N ‐Substituents on Photovoltaic Properties of Singly Bay‐Linked Dimeric Perylene Diimides,
Chemistry – A European Journal,
Sept. 2021.
公式リンク
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J. P. Ithikkal,
A. Girault,
M. Kikuchi,
Y. Yabara,
S. Izawa,
M. Hiramoto.
Photovoltaic behavior of centimeter-long lateral organic junctions,
Applied Physics Express,
Vol. 14,
No. 9,
pp. 094001,
Sept. 2021.
公式リンク
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Fujimoto, K.,
Izawa, S.,
Takahashi, A.,
Inuzuka, T.,
Sanada, K.,
Sakamoto, M.,
Nakayama, Y.,
Hiramoto, M.,
Takahashi, M.,
Seiichiro Izawa.
Curved Perylene Diimides Fused with Seven-Membered Rings,
Chemistry - An Asian Journal,
Vol. 16,
No. 6,
pp. 690-695,
2021.
公式リンク
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Takeuchi, R.,
Izawa, S.,
Hasegawa, Y.,
Tsuruta, R.,
Yamaguchi, T.,
Meissner, M.,
Ideta, S.-I.,
Tanaka, K.,
Kera, S.,
Hiramoto, M.,
Nakayama, Y.,
Seiichiro Izawa.
Experimental Observation of Anisotropic Valence Band Dispersion in Dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) Single Crystals,
Journal of Physical Chemistry C,
2021.
公式リンク
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Keisuke Fujimoto,
Masaki Takahashi,
Seiichiro Izawa,
Masahiro Hiramoto.
Development of Perylene-Based Non-Fullerene Acceptors through Bay-Functionalization Strategy,
Materials,
May 2020.
公式リンク
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Yasuo,
Masaki Iwashita,
Mitsuru Kikuchi,
Ryohei Tsuruta,
Koki Yoshida,
Yuki Gunjo,
Yusuke Yabara,
Takuya Hosokai,
tomoyuki koganezawa,
Seiichiro Izawa,
Masahiro Hiramoto.
Electronic and Crystallographic Examinations of the Homoepitaxially Grown Rubrene Single Crystals,
Materials,
Apr. 2020.
公式リンク
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Lee, J.-H.,
Perrot, A.,
Hiramoto, M.,
Izawa, S.,
Seiichiro Izawa.
Photoconversion mechanism at the pn-homojunction interface in single organic semiconductor,
Materials,
Vol. 13,
No. 7,
2020.
公式リンク
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Nakayama, Y.,
Iwashita, M.,
Kikuchi, M.,
Tsuruta, R.,
Yoshida, K.,
Gunjo, Y.,
Yabara, Y.,
Hosokai, T.,
Koganezawa, T.,
Izawa, S.,
Hiramoto, M.,
Seiichiro Izawa.
Electronic and crystallographic examinations of the homoepitaxially grown rubrene single crystals,
Materials,
Vol. 13,
No. 8,
2020.
公式リンク
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Fujimoto, K.,
Izawa, S.,
Arikai, Y.,
Sugimoto, S.,
Oue, H.,
Inuzuka, T.,
Uemura, N.,
Sakamoto, M.,
Hiramoto, M.,
Takahashi, M.,
Seiichiro Izawa.
Regioselective Bay-Functionalization of Perylenes Toward Tailor-Made Synthesis of Acceptor Materials for Organic Photovoltaics,
ChemPlusChem,
Vol. 85,
No. 2,
pp. 285-293,
2020.
公式リンク
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Yabara, Y.,
Izawa, S.,
Hiramoto, M.,
Seiichiro Izawa.
Donor/acceptor photovoltaic cells fabricated on p-doped organic single-crystal substrates,
Materials,
Vol. 13,
No. 9,
2020.
公式リンク
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Izawa, S.,
Shintaku, N.,
Kikuchi, M.,
Hiramoto, M.,
Seiichiro Izawa.
Importance of interfacial crystallinity to reduce open-circuit voltage loss in organic solar cells,
Applied Physics Letters,
Vol. 115,
No. 15,
2019.
公式リンク
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Kikuchi, M.,
Makmuang, S.,
Izawa, S.,
Wongravee, K.,
Hiramoto, M.,
Seiichiro Izawa.
Doped organic single-crystal photovoltaic cells,
Organic Electronics,
Vol. 64,
pp. 92-96,
2019.
公式リンク
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Kikuchi, M.,
Hirota, M.,
Kunawong, T.,
Shinmura, Y.,
Abe, M.,
Sadamitsu, Y.,
Moh, A.M.,
Izawa, S.,
Izaki, M.,
Naito, H.,
Hiramoto, M.,
Seiichiro Izawa.
Lateral Alternating Donor/Acceptor Multilayered Junction for Organic Solar Cells,
ACS Applied Energy Materials,
Vol. 2,
No. 3,
pp. 2087-2093,
2019.
公式リンク
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Izawa, S.,
Perrot, A.,
Lee, J.-H.,
Hiramoto, M.,
Seiichiro Izawa.
Organic pn homojunction solar cell,
Organic Electronics,
Vol. 71,
pp. 45-49,
2019.
公式リンク
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Kikuchi, M.,
Izawa, S.,
Rai, N.,
Hiramoto, M.,
Seiichiro Izawa.
Very low activation energy for carrier generation of surface doped organic single crystals observed by Hall effects,
Applied Physics Letters,
Vol. 115,
No. 11,
2019.
公式リンク
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Ueno, H.,
Jeon, I.,
Lin, H.-S.,
Thote, A.,
Nakagawa, T.,
Okada, H.,
Izawa, S.,
Hiramoto, M.,
Daiguji, H.,
Maruyama, S.,
Matsuo, Y.,
Seiichiro Izawa.
Li@C<inf>60</inf> endohedral fullerene as a supraatomic dopant for C<inf>60</inf> electron-transporting layers promoting the efficiency of perovskite solar cells,
Chemical Communications,
Vol. 55,
No. 79,
pp. 11837-11839,
2019.
公式リンク
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Hiramoto, M.,
Kikuchi, M.,
Izawa, S.,
Seiichiro Izawa.
Parts-per-Million-Level Doping Effects in Organic Semiconductor Films and Organic Single Crystals,
Advanced Materials,
Vol. 31,
No. 1,
2019.
公式リンク
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Izawa, S.,
Shintaku, N.,
Hiramoto, M.,
Seiichiro Izawa.
Effect of Band Bending and Energy Level Alignment at the Donor/Acceptor Interface on Open-Circuit Voltage in Organic Solar Cells,
Journal of Physical Chemistry Letters,
Vol. 9,
No. 11,
pp. 2914-2918,
2018.
公式リンク
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Shintaku, N.,
Hiramoto, M.,
Izawa, S.,
Seiichiro Izawa.
Doping for Controlling Open-Circuit Voltage in Organic Solar Cells,
Journal of Physical Chemistry C,
Vol. 122,
No. 10,
pp. 5248-5253,
2018.
公式リンク
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Izawa, S.,
Nakano, K.,
Suzuki, K.,
Chen, Y.,
Kikitsu, T.,
Hashizume, D.,
Koganezawa, T.,
Nguyen, T.-Q.,
Tajima, K.,
Seiichiro Izawa.
Crystallization and Polymorphism of Organic Semiconductor in Thin Film Induced by Surface Segregated Monolayers,
Scientific Reports,
Vol. 8,
No. 1,
2018.
公式リンク
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Shintaku, N.,
Hiramoto, M.,
Izawa, S.,
Seiichiro Izawa.
Effect of trap-assisted recombination on open-circuit voltage loss in phthalocyanine/fullerene solar cells,
Organic Electronics,
Vol. 55,
pp. 69-74,
2018.
公式リンク
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Suzuki, K.,
Izawa, S.,
Chen, Y.,
Nakano, K.,
Tajima, K.,
Seiichiro Izawa.
Drawing organic photovoltaics using paint marker pens,
AIP Advances,
Vol. 7,
No. 11,
2017.
公式リンク
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Shintaku, N.,
Izawa, S.,
Takagi, K.,
Naito, H.,
Hiramoto, M.,
Seiichiro Izawa.
Hole- and electron-only transport in ratio-controlled organic co-deposited films observed by impedance spectroscopy,
Organic Electronics,
Vol. 50,
pp. 515-520,
2017.
公式リンク
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Ohashi, C.,
Izawa, S.,
Shinmura, Y.,
Kikuchi, M.,
Watase, S.,
Izaki, M.,
Naito, H.,
Hiramoto, M.,
Seiichiro Izawa.
Hall Effect in Bulk-Doped Organic Single Crystals,
Advanced Materials,
Vol. 29,
No. 23,
2017.
公式リンク
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Zhong, Y.,
Suzuki, K.,
Inoue, D.,
Hashizume, D.,
Izawa, S.,
Hashimoto, K.,
Koganezawa, T.,
Tajima, K.,
Seiichiro Izawa.
Interface-induced crystallization and nanostructure formation of [6,6]-phenyl-C<inf>61</inf>-butyric acid methyl ester (PCBM) in polymer blend films and its application in photovoltaics,
Journal of Materials Chemistry A,
Vol. 4,
No. 9,
pp. 3335-3341,
2016.
公式リンク
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Izawa, S.,
Nakano, K.,
Suzuki, K.,
Hashimoto, K.,
Tajima, K.,
Seiichiro Izawa.
Dominant effects of first monolayer energetics at donor/acceptor interfaces on organic photovoltaics,
Advanced Materials,
Vol. 27,
No. 19,
pp. 3025-3031,
2015.
公式リンク
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Zhong, Y.,
Izawa, S.,
Hashimoto, K.,
Tajima, K.,
Koganezawa, T.,
Yoshida, H.,
Seiichiro Izawa.
Crystallization-induced energy level change of [6,6]-phenyl-C<inf>61</inf>-butyric acid methyl ester (PCBM) film: Impact of electronic polarization energy,
Journal of Physical Chemistry C,
Vol. 119,
No. 1,
pp. 23-28,
2015.
公式リンク
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Geng, Y.,
Xiao, B.,
Izawa, S.,
Huang, J.,
Tajima, K.,
Zeng, Q.,
Zhou, E.,
Seiichiro Izawa.
Fullerene-free organic photovoltaics based on unconventional material combination: a molecular donor and polymeric acceptors,
Journal of Materials Chemistry A,
Vol. 3,
No. 44,
pp. 22325-22331,
2015.
公式リンク
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Nishio, K.,
Pornpitra, T.,
Izawa, S.,
Nishiwaki-Ohkawa, T.,
Kato, S.,
Hashimoto, K.,
Nakanishi, S.,
Seiichiro Izawa.
Electrochemical detection of circadian redox rhythm in cyanobacterial cells via extracellular electron transfer,
Plant and Cell Physiology,
Vol. 56,
No. 6,
pp. 1053-1058,
2014.
公式リンク
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Zhou, E.,
Nakano, M.,
Izawa, S.,
Cong, J.,
Osaka, I.,
Takimiya, K.,
Tajima, K.,
Seiichiro Izawa.
All-polymer solar cell with high near-infrared response based on a naphthodithiophene diimide (NDTI) copolymer,
ACS Macro Letters,
Vol. 3,
No. 9,
pp. 872-875,
2014.
公式リンク
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Zhong, Y.,
Tada, A.,
Izawa, S.,
Hashimoto, K.,
Tajima, K.,
Seiichiro Izawa.
Enhancement of V<inf>OC</inf> without loss of J<inf>SC</inf> in organic solar cells by modification of donor/acceptor interfaces,
Advanced Energy Materials,
Vol. 4,
No. 5,
2014.
公式リンク
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Izawa, S.,
Nishizawa, T.,
Hashimoto, K.,
Koganezawa, T.,
Tajima, K.,
Seiichiro Izawa.
Separated crystallization of donor and acceptor in oligo(p-phenylenevinylene)-naphthalenediimide dyad films,
Synthetic Metals,
Vol. 197,
pp. 175-181,
2014.
公式リンク
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Izawa, S.,
Hashimoto, K.,
Tajima, K.,
Seiichiro Izawa.
Surface functionalization of organic semiconductor films by segregated monolayers,
Physical Chemistry Chemical Physics,
Vol. 16,
No. 31,
pp. 16383-16387,
2014.
公式リンク
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Izawa, S.,
Hashimoto, K.,
Tajima, K.,
Seiichiro Izawa.
Morphological stability of organic solar cells based upon an oligo(p-phenylenevinylene)-C <inf>70</inf> dyad,
Physical Chemistry Chemical Physics,
Vol. 14,
No. 46,
pp. 16138-16142,
2012.
公式リンク
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Izawa, S.,
Hashimoto, K.,
Tajima, K.,
Seiichiro Izawa.
Synthesis, characterization, and photovoltaic properties of diketopyrrolopyrrole-oligothiophene/fullerene dyads,
Synthetic Metals,
Vol. 162,
No. 24,
pp. 2201-2205,
2012.
公式リンク
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Izawa, S.,
Hashimoto, K.,
Tajima, K.,
Seiichiro Izawa.
Efficient charge generation and collection in organic solar cells based on low band gap dyad molecules,
Chemical Communications,
Vol. 47,
No. 22,
pp. 6365-6367,
2011.
公式リンク
著書
国際会議発表 (査読有り)
国際会議発表 (査読なし・不明)
-
Seiichiro Izawa.
Blue Organic Light-Emitting Diode with a Turn-on Voltage at 1.47 V,
Materials for Sustainable Development Conference,
Mar. 2024.
-
Zhongzheng Sun,
Yoshiko Nakamura,
Ryosuke Nitta,
Seiichiro Izawa,
Hiroshi Funakubo,
Yutaka Majima.
Ferroelectric Tunnel Junctions based on 7% Yttrium doped HfO2 (YHO7),
STAC-D2MatE 2024 (The International Conference on the Science and Technology for Advanced Ceramics – Data Driven Materials Research for Electronics 2024),
Feb. 2024.
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Seiichiro Izawa.
Blue organic light-emitting diode with low driving voltage,
Display Workshops 23,
Dec. 2023.
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Seiichiro Izawa.
Blue Organic Light-Emitting Diode Operated by Extremely Low Driving Voltage,
The 15th Asian Conference on Organic electronics,
Nov. 2023.
-
Zhongzheng Sun,
Yoshiko Nakamura,
Ryosuke Nitta,
Seiichiro Izawa,
Hiroshi Funakubo,
Yutaka Majima.
Nano-cross-point Ferroelectric Tunnel Junctions based on ultrathin 7% Yttrium doped HfO2 (YHO7),
DEJI2MA-3 (The 3rd International Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture),
Oct. 2023.
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Riku Shikauchi,
Zhongzheng Sun,
Shinnosuke Yasuoka,
Ryosuke Nitta,
Seiichiro Izawa,
Hiroshi Funakubo,
Yutaka Majima.
Ferroelectric Tunnel Junctions based on AlScN,
KJF-ICOMEP 2023 (KJF International Conference on Organic Materials for Electronics and Photonics 2023),
Aug. 2023.
-
Zhongzheng Sun,
Yoshiko Nakamura,
Ryosuke Nitta,
Seiichiro Izawa,
Hiroshi Funakubo,
Yutaka Majima.
Nano-cross-point Ferroelectric Tunnel Junctions based on 3nm 7% Yttrium doped HfO2 (YHO7),
KJF-ICOMEP 2023 (KJF International Conference on Organic Materials for Electronics and Photonics 2023),
Aug. 2023.
-
Seiichiro Izawa.
Photo- and electrically-excited upconversion emission at organic semiconductor interface,
The ninth International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies,
June 2023.
-
Seiichiro Izawa.
Photo- and electrically-excited upconversion emission using organic semiconductor interface,
13th International Conference on Nano-Molecular Electronics,
Dec. 2022.
-
Seiichiro Izawa.
Photon upconversion at organic semiconductor interface,
13th International Conference on Organic Nonlinear Optics 2022 International Conference on Organic Photonics and Electronics,
Nov. 2022.
-
Seiichiro Izawa.
Efficient Interfacial Upconversion Emission in Organic Semiconductor Devices,
12th International Symposium on Organic Molecular Electronics,
May 2022.
-
Seiichiro Izawa.
Efficient Solid-State Photon Upconversion Enabled by Triplet Formation at Organic Semiconductor Interface,
241st Meeting of the Electrochemical Society,
May 2022.
国内会議発表 (査読なし・不明)
-
伊澤誠一郎.
超低電圧で光る青色有機の開発,
有機エレクトロニクス材料研究会 次世代光電子デバイスを指向した発光材料開発の最前線,
Feb. 2024.
-
伊澤誠一郎.
動的エキシトンを使った低電圧で光る青色有機EL,
近畿化学協会 機能性色素部会 第111回例会,
Jan. 2024.
-
伊澤誠一郎.
有機半導体界面での動的エキシトンを使った光機能,
物性科学領域横断研究会,
Nov. 2023.
-
伊澤誠一郎.
乾電池1本という超低電圧で発光する青色有機EL素子の開発,
五セラミックス研究機関合同講演会,
Oct. 2023.
-
伊澤誠一郎.
界面での電荷移動状態を利用したアップコンバージョン発光,
第84回応用物理学会秋季学術講演会,
Sept. 2023.
-
伊澤誠一郎.
超低電圧で発光する有機EL素子の開発,
映像情報メディア学会 情報ディスプレイ研究会,
Aug. 2023.
-
伊澤誠一郎.
分子界面を使った新たな有機光エレクトロニクスの創生,
明治大学 応用化学科講演会,
July 2023.
-
伊澤誠一郎.
超低電圧で光る青色有機EL,
電子情報通信学会 有機エレクトロニクス研究会,
May 2023.
-
伊澤誠一郎.
有機半導体界面での光電変換と発光素子への展開,
近畿大学 エネルギー物質コロキウム,
Apr. 2023.
-
伊澤誠一郎.
乾電池1本で光る青色有機EL,
第70回応用物理学会春季学術講演会,
Mar. 2023.
-
伊澤誠一郎.
真空蒸着で行った有機太陽電池研究と発光素子への展開,
第70回応用物理学会春季学術講演会 シンポジウム 有機半導体デバイスの現在・過去・未来:光電変換を中心として,
Mar. 2023.
-
伊澤誠一郎.
有機半導体薄膜の界面を利用した近赤外ー可視の光アップコンバージョン,
高分子学会 印刷・情報・電子用材料研究会,
Nov. 2022.
-
伊澤誠一郎.
有機半導体界面を利用した近赤外光から可視光への光アップコンバージョン,
第31回 日本赤外線学会 研究発表会,
Oct. 2022.
-
伊澤誠一郎.
近赤外光から可視光への光変換と低電圧で駆動する有機ELの開発,
大阪大学 産業科学研究所テクノサロン,
Oct. 2022.
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Aug. 2022.
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分子の界面を使って光と電気を自在に変換する!,
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伊澤誠一郎.
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