Faculty Profiles - MATSUO Yutaka

Papers - MATSUO Yutaka

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Porous multi-walled carbon nanotube paper as top electrodes for inverted organic solar cells

Yutaka Matsuo, Yuji Furukawa, Daisuke Miyata, Naoki Ueoka

Japanese Journal of Applied Physics 2026.1

Chemical Compatibility of n-Type Dopants for SWCNT Cathodes in Inverted Perovskite Solar Cells Reviewed International journal Open Access

Achmad Syarif Hidayat, Naoki Ueoka, Hisayoshi Oshima, Yoshimasa Hijikata, Yutaka Matsuo

Nanomaterials Vol. 16 ( 1 ) page： 64 2026.1

Exploiting perylene- and naphthalene-based planar aromatic n-type dopants for SWCNT cathodes in inverted perovskite solar cells Reviewed International journal Open Access

Achmad Syarif Hidayat, Naoki Ueoka, Hisayoshi Oshima, Yoshimasa Hijikata, Yutaka Matsuo

EES Solar 2026

Solvent- and Silica-triggered Chromic Behavior of a Quinacridone–indandione Derivative Reviewed International journal Open Access

Xue-Lin Zheng, Yutaka Matsuo

Chemistry Letters Vol. 54 ( 12 ) page： upaf208 2025.11

Metal-Free Inverted Perovskite Solar Cells with N-DMBI-Doped Single-Walled Carbon Nanotubes for Enhanced Charge Transport Reviewed International journal

Naoki Ueoka, Achmad Syarif Hidayat, Hisayoshi Oshima, Yoshimasa Hijikata, Yutaka Matsuo

ACS Applied Materials & Interfaces Vol. 17 ( 47 ) page： 64796 - 64807 2025.11

n-Type Doped SWCNT Films Prepared Using Organophosphorus Compounds as Cathodes in Inverted Perovskite Solar Cells Reviewed International journal Open Access

Achmad Syarif Hidayat, Naoki Ueoka, Mina Shimamoto, Miftakhul Huda, Hisayoshi Oshima, Yoshimasa Hijikata, Azusa Muraoka, Yoshiyuki Nonoguchi, Yutaka Matsuo

Journal of Materials Chemistry A Vol. 13 page： 42142 - 42151 2025.10

Pt Nanoparticle–Nanowire Hybrids Supported on Single-walled Carbon Nanotubes for Enhanced Oxygen Reduction Reaction in Polymer Electrolyte Fuel Cells Reviewed International journal

Qiao Chen, Chu-Yang Yu, Takashi Watanabe, Masaya Kawasumi, Miftakhul Huda, Yutaka Matsuo

Nanoscale Vol. 17 page： 24503 - 24512 2025.9

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry (RSC)

Enhancing catalyst durability is crucial for the advancement of Polymer Electrolyte Fuel Cells (PEFCs). In this study, a hybrid catalyst composed of Pt nanoparticles and nanowires supported on single-walled carbon...

DOI： 10.1039/D5NR02497H

researchmap

Reducing-Agent-Free Barton–Kellogg Synthesis of Bis(fluorenylidene)quinacridanes with Chromic and NIR Absorption Properties Invited Reviewed Open Access

Xue-Lin Zheng, Shinobu Aoyagi, Yutaka Matsuo

Organic Letters Vol. 27 ( 30 ) page： 8321 - 8325 2025.7

Water-Soluble Fullerene Derivatives as Radical Scavengers for Highly Durable Proton Exchange Membrane Fuel Cells Reviewed Open Access

Ratna Balgis, Hibiki Ohashi, Kazuhira Miwa, Yoshiki Ono, Shoei Suyama, Takeshi Yanai, Miftakhul Huda, Takashi Watanabe, Tsutomu Aoki, Toshikazu Ogino, Chunyan Li, Masaya Kawasumi, Yutaka Matsuo

Communications Materials Vol. 6 page： 136 2025.7

Nitrogen-Containing Carbon-Encapsulated Platinum Electrocatalysts Supported by Single-Walled Carbon Nanotubes for Polymer Electrolyte Fuel Cells Reviewed International journal Open Access

Qiao Chen, Chu‐Yang Yu, Yong‐Chang Zhai, Takashi Watanabe, Masaya Kawasumi, Miftakhul Huda, Yutaka Matsuo

Small Methods 2025.4

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

白金（Pt）ベースの電気触媒は、固体高分子形燃料電池（PEFC）における酸素還元反応（ORR）の好ましい選択肢として広く認識されています。しかし、その安定性の低さは依然として重大な課題です。この問題を解決するために、強化直接注入熱分解合成（e-DIPS）法で製造された高結晶性・高純度の単層カーボンナノチューブ（SWCNT）を担体として利用し、窒素導入処理を施すことで窒素含有SWCNT（N-SWCNT）が製造されます。アモルファスカーボンシェルでカプセル化された白金電気触媒は、簡便で工業的に好ましい溶液プラズマ（SP）法を用いて窒素含有単層カーボンナノチューブ（Pt/N-SWCNT）上に合成されます。高解像度透過型電子顕微鏡観察により、Pt/N-SWCNT中のPtナノ粒子は窒素含有カーボンシェルでカプセル化されていることが示されました。単セルの膜電極接合体（MEA）のカソード触媒としてPt/N-SWCNT-MEAを用いた場合、加速耐久試験（ADT）16,000サイクル後でも最大出力密度はわずか20.8%しか低下しません。高電圧加速（1.0～1.5 V）後も、Pt/N-SWCNT-MEAの最大出力密度の低下は39.5%と、Pt/SWCNT-MEAの48.3%、市販のPt/Cの93.2%と比較して低い値を示しています。これらの結果は、窒素含有カーボンシェルとSWCNTを担体として用いることで、触媒の安定性と活性が向上し、PEFCの優れた性能につながっていることを示しています。

DOI： 10.1002/smtd.202500074

Open Access

Web of Science

PubMed

Spray-coated Carbon Nanotubes as Alternatives to ITO Electrodes for Inverted Perovskite Solar Cells Reviewed Open Access

Naoki Ueoka, Mizuki Yagisawa, Hisayoshi Oshima, Kimitaka Higuchi, Yoshimasa Hijikata, Masahiro Matsunaga, Yutaka Ohno, Hao-Sheng Lin, Yutaka Matsuo

Japanese Journal of Applied Physics Vol. 64 page： 04SP38 2025.4

Fabrication of Elastic Color-Changing Films—Elastomer Films Incorporating Mechanochromic Fluorenylidene–Acridane Open Access

Koki Iwasaki, Yutaka Matsuo

Molecules 2025.4

Low-Temperature Synthesis of Weakly Confined Carbyne Inside Single-Walled Carbon Nanotubes Reviewed International coauthorship

Bo-Wen Zhang, Xi-Yang Qiu, Yicheng Ma, Qingmei Hu, Aina Fitó-Parera, Ikuma Kohata, Ya Feng, Yongjia Zheng, Chiyu Zhang, Yutaka Matsuo, YuHuang Wang, Shohei Chiashi, Keigo Otsuka, Rong Xiang, Dmitry I. Levshov, Sofie Cambré, Wim Wenseleers, Slava V. Rotkin, Shigeo Maruyama

ACS Nano Vol. 19 ( 13 ) page： 12996 - 13006 2025.3

Reaction Mechanism with Indano[60]fullerene Bromide for Evaporable Fullerene Derivatives Reviewed

Hirofumi Amada, Yong-Chang Zhai, Koki Yamanaka, Qing-Jun Shui, Kin-ichi Oyama, Kazuhira Miwa, Hao-Sheng Lin, Yutaka Matsuo

Chemical Communications Vol. 61 ( 8 ) page： 1665 - 1668 2025.1

Heptamethine Cyanine Dye-Doped Single-Walled Carbon Nanotube Electrodes for Improving Performance of HTL-Free Perovskite Solar Cells Invited Reviewed International coauthorship

Man-Ge Cai, Arina Watanabe, Zhenyu Xu, Yong-Chang Zhai, Achmad Syarif Hidayat, Naoki Ueoka, Miftakhul Huda, Kimitaka Higuchi, Esko I. Kauppinen, Kazumasa Funabiki, Yutaka Matsuo

Molecules Vol. 30 ( 1 ) page： 60 2025.1

Facile Doping of 2,2,2-Trifluoroethanol to Single-Walled Carbon Nanotubes Electrodes for Durable Perovskite Solar Cells Reviewed

Naoki Ueoka, Achmad Syarif Hidayat, Hisayoshi Oshima, Yoshimasa Hijikata, Yutaka Matsuo

Photochem Vol. 4 ( 3 ) page： 319 - 333 2024.9

Hydrophobic Evaporable Fullerene Indanone Ketone with Low Sublimation Temperature and Amorphous Morphology for Inverted Perovskite Solar Cells Reviewed

Yong-Chang Zhai, Koki Yamanaka, Chu-Yang Yu, Jun-Zhuo Wang, Xue-Lin Zheng, Miftakhul Huda, Naoyuki Imai, Takeshi Igarashi, Shinobu Aoyagi, Yutaka Matsuo

Chemical Communications Vol. 60 ( 70 ) page： 9420 - 9423 2024.8

Synthesis of Indano[60]fullerene Thioketone and Its Application in Organic Solar Cells Invited Reviewed Open Access

Yong-Chang Zhai, Shimon Oiwa, Shinobu Aoyagi, Shohei Ohno, Tsubasa Mikie, Jun-Zhuo Wang, Hirofumi Amada, Koki Yamanaka, Kazuhira Miwa, Naoyuki Imai, Takeshi Igarashi, Itaru Osaka, Yutaka Matsuo

Beilstein Journal of Organic Chemistry Vol. 20 page： 1270 - 1277 2024.5

Color-Changing Paper: Cellulose Nanofiber Films Incorporating Mechanochromic Fluorenylidene-Acridane Reviewed International journal Open Access

Keisuke Ogumi, Takehiro Arakawa, Bungo Okudera, Yuki Takimoto, Kohki Nagata, Kentaro Mishiba, Eiji Abe, Tomonaga Ueno, Junko Hieda, Kenji Omote, Hao-Sheng Lin, Yutaka Matsuo

ACS Applied Engineering Materials Vol. 2 ( 2 ) page： 397 - 403 2024.1

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：American Chemical Society

Color-changing paper using a cellulose nanofiber (CNF) film with mechanical pressure-sensing capability was produced using mechanochromic fluorenylidene-acridane (FA), which exhibits color change upon mechanical pressure. This flexible film exhibits a visible color change from yellow to green in response to a mechanical force. Surface investigations, such as scanning electron microscopy and contact angle analysis, revealed that the repeatability of the color change was dependent on the CNF diameter. Furthermore, the FA-CNF film exhibited a linear response to mechanical pressure within the range of 25–300 MPa, as quantitatively measured by mechanochromism using a combination of nanoimprint testing and UV–vis spectroscopy. This measurement suggested that the flexibility of the film improved mechanochromic sensitivity. When compared with the conventional method using UV–vis spectroscopy, a simpler image processing method employing CYM color analysis was able to visualize the distribution of the mechanical pressure.

DOI： 10.1021/acsaenm.3c00702

Open Access

Evaporable Fullerene Indanones with Controlled Amorphous Morphology as Electron Transporters for Inverted Perovskite Solar Cells Reviewed International coauthorship Open Access

Qing-Jun Shui, Shiqi Shan, Yong-Chang Zhai, Shinobu Aoyagi, Seiichiro Izawa, Miftakhul Huda, Chu-Yang Yu, Lijian Zuo, Hongzheng Chen, Hao-Sheng Lin, Yutaka Matsuo

Journal of the American Chemical Society Vol. 145 ( 50 ) page： 27307 - 27315 2023.12

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Papers - MATSUO Yutaka