Search Results - "Takeguchi, Masaki"

Optical Activity of Heteroaromatic Conjugated Polymer Films Prepared by Asymmetric Electrochemical Polymerization in Cholesteric Liquid Crystals: Structural Function for Chiral Induction by Kawabata, Kohsuke, Takeguchi, Masaki, Goto, Hiromasa

“…We electrochemically polymerized various achiral heteroaromatic monomers in left-handed helical cholesteric liquid crystal (CLC) media. Circular dichroism (CD)…”
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Facile preparation of graphene–graphene oxide liquid cells and their application in liquid-phase STEM imaging of Pt atoms by Takeguchi, Masaki, Mitsuishi, Kazutaka, Hashimoto, Ayako

“…Abstract Graphene–graphene oxide (GO) hybrid liquid cells (LCs) for liquid-phase scanning transmission electron microscopy (STEM) were fabricated using a…”
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Impact of Anchoring Monolayers on the Enhancement of Radiative Recombination in Light-Emitting Diodes Based on Silicon Nanocrystals by Ghosh, Batu, Hamaoka, Takumi, Nemoto, Yoshihiro, Takeguchi, Masaki, Shirahata, Naoto

“…In the current paper, we provide direct evidence of a controlled structure of silicon nanocrystals (SiNCs). The photoluminescence quantum yields (PLQYs) are…”
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Corrosion‐Resistant and High‐Entropic Non‐Noble‐Metal Electrodes for Oxygen Evolution in Acidic Media by Tajuddin, Aimi A. H., Wakisaka, Mitsuru, Ohto, Tatsuhiko, Yu, Yue, Fukushima, Haruki, Tanimoto, Hisanori, Li, Xiaoguang, Misu, Yoshitatsu, Jeong, Samuel, Fujita, Jun‐ichi, Tada, Hirokazu, Fujita, Takeshi, Takeguchi, Masaki, Takano, Kaori, Matsuoka, Koji, Sato, Yasushi, Ito, Yoshikazu

“…To realize a sustainable hydrogen economy, corrosion‐resistant non‐noble‐metal catalysts are needed to replace noble‐metal‐based catalysts. The combination of…”
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High-resolution STEM observation of the dynamics of Pt nanoparticles in a liquid by Takeguchi, Masaki, Li, Xiaoguang, Mitsuishi, Kazutaka

“…Abstract The dynamics of Pt nanoparticles (NPs) in water are observed by high-resolution scanning transmission electron microscopy with a home-made static…”
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Fabrication of a liquid cell for in situ transmission electron microscopy by Li, Xiaoguang, Mitsuishi, Kazutaka, Takeguchi, Masaki

“…Abstract Liquid cell transmission electron microscopy (LCTEM) enables imaging of dynamic processes in liquid with high spatial and temporal resolution. The…”
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Apatite Coating of Iron Oxide Nanoparticles by Alternate Addition of Calcium and Phosphate Solutions: A Calcium and Carboxylate (Ca-COO) Complex-Mediated Apatite Deposition by Irawan, Vincent, Takeguchi, Masaki, Ikoma, Toshiyuki

“…Apatite is a biocompatible material widely used to encapsulate iron-oxide nanoparticles (IONPs) for biomedical applications, such as drug-delivery or…”
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Direct synthesis of large area graphene on insulating substrate by gallium vapor-assisted chemical vapor deposition by Murakami, Katsuhisa, Tanaka, Shunsuke, Hirukawa, Ayaka, Hiyama, Takaki, Kuwajima, Tomoya, Kano, Emi, Takeguchi, Masaki, Fujita, Jun-ichi

“…A single layer of graphene with dimensions of 20 mm × 20 mm was grown directly on an insulating substrate by chemical vapor deposition using Ga vapor…”
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Grain structures of nitrogen-doped graphene synthesized by solid source-based chemical vapor deposition by Shinde, Sachin M., Kano, Emi, Kalita, Golap, Takeguchi, Masaki, Hashimoto, Ayako, Tanemura, Masaki

“…Doping of a foreign element in sp2 hybridized graphene lattice is of significant importance to tune the electrical and chemical properties. Here, we report on…”
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Effect of amorphous carbon coating on the performance of liquid phase transmission electron microscopy (LP-TEM) and the dynamics of enclosed Pt nano-colloids by Li, Xiaoguang, Mitsuishi, Kazutaka, Takeguchi, Masaki

“…Abstract Ultra-thin silicon nitride (SiN) membranes are critical in microfabrication-based liquid cells (LCs) for transmission electron microscopy (TEM). This…”
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Semiconductor nanochannels in metallic carbon nanotubes by thermomechanical chirality alteration by Tang, Dai-Ming, Erohin, Sergey V, Kvashnin, Dmitry G, Demin, Victor A, Cretu, Ovidiu, Jiang, Song, Zhang, Lili, Hou, Peng-Xiang, Chen, Guohai, Futaba, Don N, Zheng, Yongjia, Xiang, Rong, Zhou, Xin, Hsia, Feng-Chun, Kawamoto, Naoyuki, Mitome, Masanori, Nemoto, Yoshihiro, Uesugi, Fumihiko, Takeguchi, Masaki, Maruyama, Shigeo, Cheng, Hui-Ming, Bando, Yoshio, Liu, Chang, Sorokin, Pavel B, Golberg, Dmitri

“…Carbon nanotubes have a helical structure wherein the chirality determines whether they are metallic or semiconducting. Using in situ transmission electron…”
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Characterization of inter-diffusion phase between gadolinium-doped ceria and yttria-stabilized zirconia during high-temperature sintering by in-situ and ex-situ transmission electron microscopy observations by Shimura, Takaaki, Miyazaki, Yoshinobu, Nakayama, Yoshiko, Takeguchi, Masaki, Shikazono, Naoki

“…Formation of an inter-diffusion phase of gadolinium-doped ceria (GDC) and yttria-stabilized zirconia (YSZ) during high-temperature sintering is a significant…”
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Origin of the Photoluminescence Quantum Yields Enhanced by Alkane-Termination of Freestanding Silicon Nanocrystals: Temperature-Dependence of Optical Properties by Ghosh, Batu, Takeguchi, Masaki, Nakamura, Jin, Nemoto, Yoshihiro, Hamaoka, Takumi, Chandra, Sourov, Shirahata, Naoto

“…On the basis of the systematic study on temperature dependence of photoluminescence (PL) properties along with relaxation dynamics we revise a long-accepted…”
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Ultraviolet Light-Induced Surface Changes of Tungsten Oxide in Air: Combined Scanning Transmission Electron Microscopy and X-ray Photoelectron Spectroscopy Analysis by Nakagawa, Yuki, Shiratsuchi, Yasuhiro, Shibayama, Tamaki, Takeguchi, Masaki

“…Scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy analyses were combined to clarify the ultraviolet light-induced surface…”
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Elucidating the Mechanism of Iron‐Catalyzed Graphitization: The First Observation of Homogeneous Solid‐State Catalysis by Hunter, Robert D., Takeguchi, Masaki, Hashimoto, Ayako, Ridings, Kannan M., Hendy, Shaun C., Zakharov, Dmitri, Warnken, Nils, Isaacs, Jack, Fernandez‐Muñoz, Sol, Ramirez‐Rico, Joaquín, Schnepp, Zoe

“…Carbon is a critical material for existing and emerging energy applications and there is considerable global effort in generating sustainable carbons. A…”
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The Atomic Observation of the Structural Change Process in Pt Networks in Air Using Environmental Cell Scanning Transmission Electron Microscopy by Takeguchi, Masaki, Takei, Toshiaki, Mitsuishi, Kazutaka

“…The structural change in Pt networks composed of multiple chain connections among grains was observed in air at 1 atm using atomic-resolution environmental…”
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Large negative uniaxial magnetic anisotropy in highly distorted Co-ferrite thin films by Tainosho, Takeshi, Inoue, Jun-ichiro, Sharmin, Sonia, Takeguchi, Masaki, Kita, Eiji, Yanagihara, Hideto

“…The strain induced magnetic anisotropy (MA) of epitaxial Co-ferrite (CFO) thin films grown on MgAl2O4(001) (MAO) by reactive sputtering was studied. These…”
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A HfC nanowire point electron source with oxycarbide surface of lower work function for high-brightness and stable field-emission by Tang, Shuai, Tang, Jie, Chiu, Ta-wei, Hayami, Wataru, Uzuhashi, Jun, Ohkubo, Tadakatsu, Uesugi, Fumihiko, Takeguchi, Masaki, Mitome, Masanori, Qin, Lu-Chang

“…Electric field-induced point electron source is highly demanded for microscopy, spectroscopy, lithography, X-ray tubes, microwave devices, and data displays…”
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Graphene-oxide-semiconductor planar-type electron emission device by Murakami, Katsuhisa, Tanaka, Shunsuke, Miyashita, Akira, Nagao, Masayoshi, Nemoto, Yoshihiro, Takeguchi, Masaki, Fujita, Jun-ichi

“…Graphene was used as the topmost electrode for a metal-oxide-semiconductor planar-type electron emission device. With several various layers, graphene as a…”
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Effect of Boron Incorporation on Structural and Optical Properties of AlN Layers Grown by Metal‐Organic Vapor Phase Epitaxy by Imura, Masataka, Ota, Yuichi, Banal, Ryan G., Liao, Meiyong, Nakayama, Yoshiko, Takeguchi, Masaki, Koide, Yasuo

“…To investigate the effect of boron (B) incorporation on the structural and optical properties of aluminum nitride (AlN) layers, B‐doped AlN layers without…”
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