The University of Tokyo, Hitosugi lab (Solid-state chemistry lab)

About us


As atoms condense to form a molecule or a solid, exotic physical phenomenon far beyond our intuition begin to emerge.

Imagine building up a condensed material by bonding atoms together one-by-one. New electronic properties will immediately appear after two atoms bond each other. As we increase the number of atoms further, from three, to ten, to one hundred, to one million, new and unusual physical properties will emerge at each step, and eventually we will arrive at the familiar properties of a bulk material.

By addressing atomic and electronic structure, our group aims to elucidate the novel physical and chemical properties of materials spanning a range of size scales. Our research includes the interactions within networks of condensed materials and the interface phenomena between different materials. In addition to their basic physics and chemistry, we also focus on their technological applications, and ultimately aim for outcomes which are beneficial for our everyday life.

To achieve our goals, we carefully design and fabricate nanostructures and thin films on the atomic scale, and study their electronic properties using state-of-the-art measurement techniques.

Through our tireless pursuit of new materials and functionalities, we are opening up new frontiers in condensed matter science, on scales ranging from the microscopic to the macroscopic.

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Latest News View All

2024.4.17
A paper "Cyclic electrochemical reactions on a Li-metal negative electrode having a low-resistance interface with a solid-state electrolyte" was accepted by Applied Physics Letters.
2024.4.15
A paper "Impact of Annealing on the Resistance of Li3PO4 Electrolyte–LiNi0.5Mn1.5O4 Electrode Interfaces" was accepted by Applied Physics Letters.
2024.3.13
A paper "Fabrication of conductive Nb-doped anatase TiO2 thin films by mist chemical vapor deposition using aqueous solutions of water-soluble Ti and Nb compounds" was accepted by Japanese Journal of Applied Physics.
2023.5.15
A paper "Nonequilibrium molecular dynamics for accelerated computation of ion-ion correlated conductivity beyond Nernst-Einstein limitation" was accepted by npj Computational Materials.
2023.5.15
A paper "Synthesis of polyacene by using a metal-organic framework"was accepted by Nature synthesis.
2023.5.1
A paper "Tuning Bayesian optimization for materials synthesis: simulating two- and three-dimensional cases"was accepted by STAM Methods.
2023.4.17
Oi received Excellent Student Presentation Award at The 90th ECSJ Spring Meeting.
2023.4.4
Eight students joined us.
2023.3.27
Three students graduated the baccalaureate degree program. Five students graduated the master degree program. Two students graduated the doctor degree program.
There is student who fledged Hitosugi & Shimizu Lab. We pray for the success in the new world.
2023.3.25
A paper "Autonomous experimental systems in materials science" was accepted by Science and Technology of Advanced Materials: Methods.
2023.3.8
A paper "Nonequilibrium molecular dynamics for accelerated computation of ion-ion correlated conductivity beyond Nernst-Einstein limitation" was accepted by npj Computational Materials
2023.2.9
A paper "Protons inside the LiCoO2 electrode largely increas electrolyte-electrode interface resistance in all-solid-state Li batteries" was accepted by The Journal of Physical Chemistry C.
2023.2.9
A paper "Efficiency of electron doping to monolayer hexagonal boron nitride by alkali metals" was accepted by Applied Physics Letters.
2023.2.9
A paper "Identification of OH groups on SrTiO3(100)-(√13×√13))-R33.7o reconstructed surface by non-contact atomic force microscopy and scanning tunneling microscopy" was accepted by Applied Physics Letters.
2022.11.26
Mr. Chon recieved an award of "Young Investigator award" at "16th Joint Research Meeting of MEXT National Projects on Condensed-Matter Science" for his presentation.
2022.10.18
A paper "Selective Epitaxial Growth of Ca2NH and CaNH Thin Films by Reactive Magnetron Sputtering Under Hydrogen Partial Pressure Control" was published by The Journal of Physical Chemistry Letters
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2022.10.11
Prof. Hitosugi's article was published in the Journal of the Physical Society of Japan.
2022.10.1
A new member joined us
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2022.9.22
Wang graduated the Ph.D. program. Congratulation!
2022.9.15
A paper Fabrication and Growth Orientation Control of NaBH4 Epitaxial Thin Films Using Infrared-Pulsed-Laser Deposition" was published by Crystal Growth & Design
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2022.9.5
A paper "Modifying the Interface between the Solvated Ionic Liquid Electrolyte and Positive Electrode to Boost Lithium-Ion Battery Performance" was accepted by ACS Appl. Energy Mater.
2022.7.25
A paper "Immense Reduction in Interfacial Resistance between Sulfide Electrolyte and Positive Electrode" was accepted by ACS Appl. Mater. Interfaces, and press released.
This is a joint research with Toray Research Center, Inc.
2022.7.1
A doctor course student joined.
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2022.5.30
Prof. Hitosugi will give a lecture at the 8th Obutsu Seminar.
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2022.5.2
Project Assistant Professor Sudare joined.
2022.4.20
Prof. Hitosugi's article was published in the Nihon Keizai Shimbun.
2022.4.12
A paper "Tuning of Bayesian optimization for materials synthesis: simulation of the one-dimensional case" was accepted for STAM Methods.
2022.4.4
A doctor course student, two master course students and two bachelor course students joined.
2022.4.4
Prof. Hitosugi has been appointed as a professor at the University of Tokyo and a specially-appointed professor at Tokyo Institute of Technology.
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2022.3.28
Four students graduated the baccalaureate degree program. Four students graduated the master degree program. Two students graduated the doctor degree program.
There is student who fledged Hitosugi & Shimizu Lab. We pray for the success in the new world.
2022.3.28
As the winners of outstanding academic achievements, Mr. Sasahara of our laboratory was selected as a doctoral student and Mr. Iwamoto as a bachelor's valedictorian, and Ms. Oi received the bachelor's student award for excellence.
2022.3.3
Mitsui Knowledge Industry Industry Co., Ltd. and Tokyo Institute of Technology begin joint research on Materials Informatics.
- Soliciting input from materials researchers through the provision of a prototype version of the "Bayesian Optimization" application. -
Press release
Prototype version of the "Bayesian Optimization" application
2022.2.22
Oi received Okakai Special Award at Graduation research presentation.
2022.2.19
A paper "Repeatable Photoinduced Insulator-to-Metal Transition in Yttrium Oxyhydride Epitaxial Thin Films" was accepted for Chem. Mater.
2022.2.16
The information of The first workshop on Automatic and Autonomous Experiments has been updated. Everyone can join. Please register from here.
2022.1.13
A paper "Synthesis of high-entropy layered oxide epitaxial thin films: LiCr1/6Mn1/6Fe1/6Co1/6Ni1/6Cu1/6O2" was accepted for Cryst. Growth Des.
2022.1.13
A paper "Drastic Reduction of the Solid Electrolyte–Electrode Interface Resistance via Annealing in Battery Form" was accepted for ACS Appl. Mater. Interfaces and press released.
2021.12.21
We have started a joint research project with HACARUS Inc.
2021.12.19
The first workshop on Automatic and Autonomous Experiments will be held on March 4, 2022.
2021.12.13
Prof. Hitosugi will be speaking at 20th International Symposium on Nanotechnology.
2021.12.13
A paper "Bayesian sparse modeling of extended X-ray absorption fine structure to determine interstitial oxygen positions in yttrium oxyhydride epitaxial thin film" was published from AIP Advances.
2021.12.02
A paper"Improving ultra-fast chrging performance and durability of all solid state thin film Li-NMC battery-on-chip systems by in situ TEM lamella analysis" was published from Appl. Mater. Today.
2021.11.29
We have started a joint research project with Nagase & Co., Ltd.
2021.11.20
A paper "Ionic rectification across ionic and mixed-conductor interfaces" was accepted for the publication in Nano Lett.
2021.11.20
Introduction video of our laboratory is now available on Tokyo Tech's official YouTube channel.
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2021.11.8
Sasahara received poster award at the 62nd High Pressure Conference of Japan.
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2021.11.6
Prof. Hitosugi will be speaking at lecture presented by Institute for Materials Research, Tohoku University on November 30th.
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2021.11.6
Prof. Hitosugi will be speaking at JASIS on November 8th.
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2021.10.1
Dai graduated the master degree program.Congratulations!
2021.9.19
We have set up a website that summarizes material research using AI and robotics.
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2021.9.2
Prof. Hitosugi will be speaking at the symposium on September 16.
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2021.9.2
On August 5, students from Musashi High School, the school where Mr. Komatsu(D2) graduated from, visited us.
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2020.7.28
Ms. Miura joined our lab.
2021.6.26
A paper "Epitaxial growth of EuF2 and EuO thin films based on spontaneous anion diffusion from substrates" was accepted for the publication in Cryst. Growth Des.
2021.6.13
A paper "Relaxation of the interface resistance between solid electrolyte and 5 V-class positive electrode" was accepted for the publication in Nano Lett.
2021.6.4
A paper "Single molecular adsorption of terbium(III) bis-phthalocyaninato (TbPc2) governed by two surface reconstructions of perovskite type SrVO3 epitaxial ultrathin film" was accepted for the publication in Chem. Lett.
2021.6.3
A paper "Peculiarly Fast Li-ion Conduction Mechanism in a Succinonitrile-Based Molecular Crystal Electrolyte: A Molecular Dynamics Study" was accepted for the publication in J. Mater. Chem. A.
2020.5.31
Komatsu received Young Scientist Presentation Award at The 68th JSAP Spring Meeting, 2021.
2020.5.11
Yoshitani received Okakai Excellence Award at Graduation research presentation.
2021.5.6
A paper "Absence of ferromagnetism in MnBi2Te4/Bi2Te3 down to 6 K" was accepted for the publication in Phys. Rev. B.
2021.5.6
We are going to host a Workshop on oxides on Aug. 6, 2021.
2020.4.23
A trainee student joined.
2021.4.13
A paper "Tuning the Schottky Barrier Height at the Interfaces of Metals and Mixed Conductors" was accepted for the publication in ACS Appl. Mater. Interfaces.
2020.4.6
A secretary, a doctor course student, a research student, two master course students and four bachelor course students joined.


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