Research Field : Functional Organic Materials Chemistry
List of Selected Publications
A Planarized Triphenylborane Mesogen: Discotic Liquid Crystals with Ambipolar Charge Carrier Transport Properties
Tomokatsu Kushida, Ayumi Shuto, Masafumi Yoshio, Takashi Kato, and Shigehiro Yamaguchi, Angew. Chem. Int. Ed., 54, 6922-6925 (2015).
Zwitterionic Liquid Crystals as 1D and 3D Lithium Ion Transport Media
Bartolome Soberats, Masafumi Yoshio, Takahiro Ichikawa, Hiroyuki Ohno, and Takashi Kato J. Mater. Chem. A, 3, 11232-11238 (2015).
Liquid-Crystalline Electrolytes for Lithium-Ion Batteries: Ordered Assemblies of a Mesogen-Contaning Carbonate and a Lithium Salt
Junji Sakuda, Eiji Hosono, Masafumi Yoshio, Takahiro Ichikawa, Takuro Matsumoto, Hiroyuki Ohno, Haoshen Zhou, and Takashi Kato, Adv. Funct. Mater., 25, 1206-1212 (2015).
Columnar Nanostructured Polymer Films Containing Ionic Liquids in Supramolecular One-Dimensional Nanochannels
Akihiro Yamashita, Masafumi Yoshio, Siya Shimizu, Takahiro Ichikawa, Hiroyuki Ohno, and Takashi Kato, J. Polym. Sci. Part A: Polym. Chem., 53, 366-371 (2015).
Nanostructured Two-Component Liquid-Crystalline Electrolytes for High Temperature Dye-Sensitized Solar Cells
Daniel Hogberg, Bartolome Soberats, Satoshi Uchida, Masafumi Yoshio, Lars Kloo, Hiroshi Segawa, and Takashi Kato, Chem. Mater., 26, 6496-6502 (2014).
Macroscopic Photocontrol of Ion-Transporting Pathways of a Nanostructured Imidazolium-Based Photoresponsive Liquid Crystal
Bartolome Soberats, Emi Uchida, Masafumi Yoshio, Junko Kagimoto, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 136, 9552-9555 (2014).
3D Anhydrous Proton Transporting Nanochannels Formed by Self-Assembly of Liquid Crystals Composed of a Sulfobetaine and a Sulfonic Acid
Bartolome Soberats, Masafumi Yoshio, Takahiro Ichikawa, Satomi Taguchi, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 135, 15286-15289 (2013).
Bisphenylsulfone-Based Molecular Assemblies: Polar Columnar Liquid Crystals Aligned in Electric Fields and Fibrous Aggregates in Organic Solvents
Masafumi Yoshio, Reiku Konishi, Takeshi Sakamoto, and Takashi Kato, New J. Chem., 37, 143-147 (2013).
Induction of Thermotropic Bicontinuous Cubic Phases in Liquid-Crystalline Ammonium and Phosphonium Salts
Takahiro Ichikawa, Masafumi Yoshio, Atsushi Hamasaki, Satomi Taguchi, Feng Liu, Xiang-bing Zeng, Goran Ungar, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 134, 2634-2643 (2012).
Self-Assembled Amphiphilic Diketopyrrolopyrrole-Based Oligothiophenes for Field-Effect Transistors and Solar Cells
Jianguo Mei, Kenneth R. Graham, Romain Stalder, Masafumi Yoshio, Colin Nuckolls, Bernard Kippelen, Ronald K. Castellano, and John R. Reynolds, Chem. Mater., 23, 2285-2288 (2011)
3D Interconnected Ionic Nano-Channels Formed in Polymer Films: Self-Organization and Polymerization of Thermotropic Bicontinuous Cubic Liquid Crystals
Takahiro Ichikawa, Masafumi Yoshio, Atsushi Hamasaki, Junko Kagimoto, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 133, 2163 (2011).
Functional Soft Materials: Nanostructured Liquid Crystals and Self-Assembled Fibrous Aggregates
Takashi Kato, Yoshiko Shoji, Masafumi Yoshio, Shogo Yamane, and Takuma Yasuda, J. Synth. Org. Chem., Jpn., 68, 1169 (2010).
Alignment of Photoconductive Self-Assembled Fibers Composed of p-Conjugated Molecules under Electric Fields
Yoshiko Shoji, Masafumi Yoshio, Takuma Yasuda, Masahiro Funahashi, and Takashi Kato, J. Mater. Chem., 20, 173 (2010).
Self-Assembly of Functional Columanr Liquid Crystals
Takashi Kato, Takuma Yasuda, Yuko Kamikawa, and Masafumi Yoshio, Chem. Commun., 729 (2009).
Electric-Field-Assisted Alignment of Self-Assembled Fibers Composed of Hydrogen-Bonded Molecules Having Laterally Fluorinated Mesogens
Masafumi Yoshio, Yoshiko Shoji, Yusuke Tochigi, Yohei Nishikawa, and T. Kato, J. Am. Chem. Soc., 131, 6763 (2009).
A Columnar Liquid-Crystalline Shape-Persistent Macrocycle Having a Nanosegregated Structure
Harutoki Shimura, Masafumi Yoshio, and Takashi Kato, Org. Biomol. Chem., 7, 3205 (2009).
Induction of Columnar and Smectic Phases for Spiropyran Derivatives: Effects of Acidichromism and Photochromism
Boon-Hooi Tan, Masafumi Yoshio, and Takashi Kato, Chem. Asian J., 3, 534 (2008).
Noncovalent Approach to One-Dimensional Ion Conductors: Enhancement of Ionic Conductivities in Nanostructured Columnar Liquid Crystals
Harutoki Shimura, Masafumi Yoshio, Koji Hoshino, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 130, 1759 (2008).
Self-Organization of Room-Temperature Ionic Liquids Exhibiting Liquid-Crystalline Bicontinuous Cubic Phases: Formation of the Network of Nano-Ion Channels
Takahiro Ichikawa, Masafumi Yoshio, Atsushi Hamasaki, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 129, 10662 (2007).
One-Dimensional Ion-Conductive Polymer Films: Alignment and Fixation of Ionic Channels Formed by Self-Organization of Polymerizable Columnar Liquid Crystals
Masafumi Yoshio, Takayoshi Kagata, Koji Hoshino, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 128, 5570 (2006).
One-Dimensional Ion Transport in Self-Organized Columnar Ionic Liquids
Masafumi Yoshio, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 126, 994 (2004).
Layered Ionic Liquids: Anisotropic Ion Conduction in New Self-Organized Liquid-Crystalline Materials
Masafumi Yoshio, Tomohiro Mukai, Kiyoshi Kanie, Masahiro Yoshizawa, Hiroyuki Ohno, and Takashi Kato, Adv. Mater., 14, 351 (2002).