• 6379 Citations
  • 40 h-Index
1991 …2020

Research output per year

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Research Output

Hole-transporting diketopyrrolopyrrole-thiophene polymers and their additive-free application for a perovskite-type solar cell with an efficiency of 16.3%

Maruo, H., Sasaki, Y., Harada, K., Suwa, K., Oyaizu, K., Segawa, H., Carter, K. & Nishide, H., 2019 Jan 1, In : Polymer Journal. 51, 1, p. 91-96 6 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Improved activity of cathode catalysts for fuel cells by optimizing the conditions for preparation of carbon particles modified with cobalt-polyrrole complex

Yuasa, M., Oyaizu, K., Murata, H., Tanaka, K. & Yamamoto, M., 2006 Sep 1, In : KOBUNSHI RONBUNSHU. 63, 9, p. 601-606 6 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Improving charge/discharge properties of radical polymer electrodes influenced strongly by current collector/carbon fiber interface

Yoshihara, S., Isozumi, H., Kasai, M., Yonehara, H., Ando, Y., Oyaizu, K. & Nishide, H., 2010 Jul 1, In : Journal of Physical Chemistry B. 114, 25, p. 8335-8340 6 p.

Research output: Contribution to journalArticle

45 Citations (Scopus)

Indoline dye-coupled polyviologen: Its electrochemical property and electropolymerization

Sano, N., Suzuki, M., Tomita, W., Oyaizu, K. & Nishide, H., 2012 Oct 1, In : Japanese journal of applied physics. 51, 10 PART 2, 10NE17.

Research output: Contribution to journalArticle

1 Citation (Scopus)

In-situ polymerization of thiophene derivatives using a gas-phase oxidant to form a hole-transporting layer in dye-sensitized solar cell

Sasada, Y., Kato, F., Oyaizu, K. & Nishide, H., 2014 Sep 5, In : Journal of Photopolymer Science and Technology. 27, 3, p. 347-350 4 p.

Research output: Contribution to journalArticle

Investigation of carbon materials as supports for metalloporphyrins used for cathode catalyst in fuel cells

Yuasa, M., Oyaizu, K., Murata, H., Kitao, M. & Fujita, K., 2006 Sep 1, In : KOBUNSHI RONBUNSHU. 63, 9, p. 607-612 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Investigation of support materials for metalloporphyrins as oxygen reduction catalyst

Kitao, M., Oyaizu, K. & Yuasa, M., 2005 Dec 1, p. 4610-4611. 2 p.

Research output: Contribution to conferencePaper

In vivo measurement of superoxide anion radical by means of electrode modified with electropolymerized iron porphyrin

Tsutsui, S., Namba, M., Ishikawa, M., Eguchi, K., Yamaguchi, A., Oyaizu, K. & Yuasa, M., 2005 Dec 1. 1 p.

Research output: Contribution to conferencePaper

Ion-exchange and apparent diffusion coefficients within cationic polysulfonium coatings containing ferricyanide

Dewi, E. L., Nakano, H., Oyaizu, K., Nishide, H. & Tsuchida, E., 2003 Jan 1, In : Journal of Macromolecular Science - Pure and Applied Chemistry. 40 A, 1, p. 37-47 11 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Ionic liquid-inspired redox shuttles: Properties of a ferrocenylimidazolium salt as an efficient mediator for dye-sensitized solar cells

Oyaizu, K., Ikeda, H., Hayo, N., Kato, F. & Nishide, H., 2014, In : Chemistry Letters. 43, 7, p. 1134-1136 3 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Kinetic control of electron transfer at doped zinc oxide/redox-active molecule interface for photocurrent rectification

Suzuka, M., Hara, S., Sekiguchi, T., Oyaizu, K. & Nishide, H., 2015, In : Chemistry Letters. 44, 1, p. 41-43 3 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Linear Ladder-Type π-Conjugated Polymers Composed of Fused Thiophene Ring Systems

Oyaizu, K., Iwasaki, T., Tsukahara, Y. & Tsuchida, E., 2004 Feb 24, In : Macromolecules. 37, 4, p. 1257-1270 14 p.

Research output: Contribution to journalArticle

94 Citations (Scopus)

Liposomal surface-loading of water-soluble cationic iron(III) porphyrins as anticancer drugs.

Yuasa, M., Oyaizu, K., Horiuchi, A., Ogata, A., Hatsugai, T., Yamaguchi, A. & Kawakami, H., 2004, In : Molecular pharmaceutics. 1, 5, p. 387-389 3 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)

Low-Cost, Organic Light-Emitting Electrochemical Cells with Mass-Producible Nanoimprinted Substrates Made Using Roll-to-Roll Methods

Hatakeyama, K., Uchida, S., Toriyama, S., Nishimura, S., Oyaizu, K., Nishide, H. & Nishikitani, Y., 2017 Jan 1, In : Advanced Materials Technologies. 2, 5, 1600293.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Low-energy driven electrochromic devices using radical polymer as transparent counter electroactive material

Takahashi, Y., Oyaizu, K., Honda, K. & Nishide, H., 2007 Sep 10, In : Journal of Photopolymer Science and Technology. 20, 1, p. 29-34 6 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Macrocycles for Fuel Cell Cathodes

Oyaizu, K., Murata, H. & Yuasa, M., 2009 Jan 1, Springer Series in Materials Science. Springer Verlag, p. 139-162 24 p. (Springer Series in Materials Science; vol. 111).

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Macromolecular complexes leading to high-performance energy devices

Oyaizu, K. & Nishide, H., 2012 Aug 1, In : Macromolecular Symposia. 317-318, 1, p. 248-258 11 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Mesoscale Radical Polymers: Bottom-Up Fabrication of Electrodes in Organic Polymer Batteries

Oyaizu, K. & Nishide, H., 2010 Jan 18, Advanced Nanomaterials. Wiley-VCH, Vol. 1. p. 319-332 14 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Metal-Free, Solid-State, Paperlike Rechargeable Batteries Consisting of Redox-Active Polyethers

Hatakeyama-Sato, K., Tezuka, T., Ichinoi, R., Matsumono, S., Sadakuni, K. & Oyaizu, K., 2020 May 8, In : ChemSusChem. 13, 9, p. 2443-2448 6 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Metallopolyyne polymers with ferrocenyl pendant ligands as cathode-active materials for organic battery application

Meng, Z., Hatakeyama, K., Sukegawa, T., Oyaizu, K., Ho, C. L., Xiang, J., Feng, Y. H., Lo, Y. H., Nishide, H. & Wong, W. Y., 2015 Oct 9, (Accepted/In press) In : Journal of Organometallic Chemistry.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Micellar cobaltporphyrin nanorods in alcohols

Yuasa, M., Oyaizu, K., Yamaguchi, A. & Kuwakado, M., 2004 Sep 15, In : Journal of the American Chemical Society. 126, 36, p. 11128-11129 2 p.

Research output: Contribution to journalArticle

58 Citations (Scopus)

Modifying carbon particles with polypyrrole for adsorption of cobalt ions as electrocatatytic site for oxygen reduction

Yuasa, M., Yamaguchi, A., Itsuki, H., Tanaka, K., Yamamoto, M. & Oyaizu, K., 2005 Aug 23, In : Chemistry of Materials. 17, 17, p. 4278-4281 4 p.

Research output: Contribution to journalArticle

216 Citations (Scopus)

Molecular structure of a μ-Oxo chromium-iron complex: Rare example of a crystallographically characterized μ-Oxo heterometallic porphyrin

Oyaizu, K., Haryono, A., Nishimura, Y., Yamamoto, K. & Tsuchida, E., 1999 Aug 1, In : Bulletin of the Chemical Society of Japan. 72, 8, p. 1781-1784 4 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Multielectron Redox Process of Vanadium Complexes in Oxidation of Low-Coordinate Vanadium(III) to Oxovanadium(V) with Dioxygen

Oyaizu, K., Yamamoto, K., Yoneda, K. & Tsuchida, E., 1996 Dec 1, In : Inorganic Chemistry. 35, 23, p. 6634-6635 2 p.

Research output: Contribution to journalArticle

50 Citations (Scopus)

Multi‐electron transfer process of vanadyl complexes for oxidative polymerization of diphenyl disulfide

Yamamoto, K., Oyaizu, K. & Tsuchida, E., 1995 Mar, In : Polymers for Advanced Technologies. 6, 3, p. 155-158 4 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Nanolithographic patterning via electrochemical oxidation of stable poly(nitroxide radical)s to poly(oxoammonium salt)s

Hyakutake, T., Park, J. Y., Yonekuta, Y., Oyaizu, K., Nishide, H. & Advincula, R., 2010 Nov 21, In : Journal of Materials Chemistry. 20, 43, p. 9616-9618 3 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Nernstian adsorbate-like bulk layer of organic radical polymers for high-density charge storage purposes

Oyaizu, K., Ando, Y., Konishi, H. & Nishide, H., 2008 Nov 5, In : Journal of the American Chemical Society. 130, 44, p. 14459-14461 3 p.

Research output: Contribution to journalArticle

145 Citations (Scopus)

New π-conjugated polyelectrolyte composed of alkylphenoxathiinium-type repeating units

Oyaizu, K., Mikami, T. & Tsuchida, E., 2004 Mar 23, In : Macromolecules. 37, 6, p. 2325-2327 3 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Nitroxide radicals as highly reactive redox mediators in dye-sensitized solar cells

Kato, F., Kikuchi, A., Okuyama, T., Oyaizu, K. & Nishide, H., 2012 Oct 1, In : Angewandte Chemie - International Edition. 51, 40, p. 10177-10180 4 p.

Research output: Contribution to journalArticle

65 Citations (Scopus)

Nitroxide radicals for highly efficient redox mediation in dye-sensitized solar cells

Kato, F., Hayashi, N., Murakami, T., Okumura, C., Oyaizu, K. & Nishide, H., 2010 May 3, In : Chemistry Letters. 39, 5, p. 464-465 2 p.

Research output: Contribution to journalArticle

48 Citations (Scopus)

Nonconjugated Redox-Active Polymer Mediators for Rapid Electrocatalytic Charging of Lithium Metal Oxides

Hatakeyama-Sato, K., Masui, T., Serikawa, T., Sasaki, Y., Choi, W., Doo, S. G., Nishide, H. & Oyaizu, K., 2019 Jan 1, In : ACS Applied Energy Materials. 2, 9, p. 6375-6382 8 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Non-cyanide electroless gold plating using polyphenols as reducing agents

Ohtani, Y., Horiuchi, A., Yamaguchi, A., Oyaizu, K. & Yuasa, M., 2006 Apr 10, In : Journal of the Electrochemical Society. 153, 1, p. C63-C66

Research output: Contribution to journalArticle

10 Citations (Scopus)

Novel approach for the preparation of metal containing mesoporous silica using solubilization of fatty acid salt

Yamaguchi, A., Yokoyama, M., Ogura, T., Oyaizu, K., Yuasa, M., Ohkubo, T., Sakai, H. & Abe, M., 2005 Mar 5, In : Chemistry Letters. 34, 3, p. 346-347 2 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Novel electrocatalysts for oxygen reduction using cobaltporphyrins that undergo facile electropolymerization

Yuasa, M., Oyaizu, K., Yamaguchi, A., Imai, T. & Kitao, M., 2006 Mar 1, In : KOBUNSHI RONBUNSHU. 63, 3, p. 182-188 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Novel Functional Nano-size Nonionic Surfactant Particles on Which Cationic Metalloporphyrins are Absorbed; Preparation, Characterization, and Anti-oxidant Properties

Yuasa, M., Oyaizu, K., Hanyuu, Y., Kasahara, K. & Yamaguchi, A., 2005 Jan 1, In : Journal of oleo science. 54, 8, p. 465-471 7 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

N-type redox-active benzoylpyridinium-substituted supramolecular gel for an organogel-based rechargeable device

Hatakeyama, K., Ichinoi, R., Sasada, Y., Sasaki, Y., Oyaizu, K. & Nishide, H., 2019 Jan 1, In : Chemistry Letters. 48, 6, p. 555-557 3 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Optimization of carbon-supported polypyrrole complex as cathode catalyst for fuel cells

Oyaizu, K., Tanaka, K. & Yuasa, M., 2005 Dec 1, p. 4547-4548. 2 p.

Research output: Contribution to conferencePaper

Organic radical battery approaching practical use

Nakahara, K., Oyaizu, K. & Nishide, H., 2011, In : Chemistry Letters. 40, 3, p. 222-227 6 p.

Research output: Contribution to journalReview article

170 Citations (Scopus)

Oxidation of disulfides by 4-electron transfer to O2: A Ru(bpy)32+-catalyzed photo-oxidation system for selective formation of polythioethers

Yamamoto, K., Oyaizu, K., Kobayashi, S. & Tsuchida, E., 1997 Jan 1, In : Phosphorus, Sulfur and Silicon and Related Elements. 120-121, p. 407-408 2 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Oxidative polymerization of pyrrole promoted by four-electron transfer to O2: Catalysis of O2-oxidation by μ-oxo dinuclear complexes with macrocyclic ligands

Oyaizu, K., Haryono, A., Shinoda, H. & Tsuchida, E., 2001 May 14, In : Macromolecular Chemistry and Physics. 202, 7, p. 1273-1279 7 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Oxidative polymerization of pyrrole with a vanadium dinuclear complex as a two-electron redox catalyst

Tsuchida, E., Yamamoto, K. & Oyaizu, K., 1997 Nov 25, In : Journal of Electroanalytical Chemistry. 438, 1-2, p. 167-171 5 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Oxoammonium cation of 2,2,6,6-tetramethylpiperidin-1-oxyl: A very efficient dopant for hole-transporting triaryl amines in a perovskite solar cell

Maruo, H., Tanaka, S., Takamura, M., Oyaizu, K., Segawa, H. & Nishide, H., 2018 Mar 1, In : MRS Communications. 8, 1, p. 122-126 5 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
101 Citations (Scopus)

Oxovanadium(V) hydroxide with a tetradentate Schiff base ligand resulting from oxidation of oxovanadium(IV) with O2

Oyaizu, K. & Tsuchida, E., 2003 Sep 8, In : Inorganica Chimica Acta. 353, p. 332-335 4 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Oxovanadium-Catalyzed Oxidative Polymerization of Diphenyl Disulfides with Oxygen

Yamamoto, K., Tsuchida, E., Nishide, H., Jikei, M. & Oyaizu, K., 1993 Jan 1, In : Macromolecules. 26, 13, p. 3432-3437 6 p.

Research output: Contribution to journalArticle

59 Citations (Scopus)

Oxygen-enriched electrolytes based on perfluorochemicals for high-capacity lithium-oxygen batteries

Nishikami, Y., Konishi, T., Omoda, R., Aihara, Y., Oyaizu, K. & Nishide, H., 2015 May 28, In : Journal of Materials Chemistry A. 3, 20, p. 10845-10850 6 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Oxygen Scavenging and Oxygen Barrier Poly(1,2-butadiene) Films Containing an Iron-Complex Catalyst

Wang, Y., Shoda, M., Hisama, A., Oyaizu, K. & Nishide, H., 2019 Jan 1, (Accepted/In press) In : Macromolecular Chemistry and Physics. 1900294.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Palladium-catalyzed synthesis of oligo(methylthio) aniline and conversion to polyacene-type electrolytes bearing phenothiazinium repeating units

Oyaizu, K., Mitsuhashi, F. & Tsuchida, E., 2002 Jul 29, In : Macromolecular Chemistry and Physics. 203, 10-11, p. 1328-1336 9 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

P- and n-type bipolar redox-active radical polymer: Toward totally organic polymer-based rechargeable devices with variable configuration

Suga, T., Sugita, S., Ohshiro, H., Oyaizu, K. & Nishide, H., 2011 Feb 8, In : Advanced Materials. 23, 6, p. 751-754 4 p.

Research output: Contribution to journalArticle

154 Citations (Scopus)

Perovskite/TiO 2 Interface Passivation Using Poly(vinylcarbazole) and Fullerene for the Photovoltaic Conversion Efficiency of 21%

Okada, W., Suga, T., Oyaizu, K., Segawa, H. & Nishide, H., 2019 Apr 22, In : ACS Applied Energy Materials. 2, 4, p. 2848-2853 6 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)