Hide Takaki

Qualification

Ph.D. (Engineering)

Practice Areas

Patent
Electrical Engineering, Electronics, Software/ Chemical, Materials Science/ Mechanics, Optics

Education

Doctor of Engineering, Graduate School of Engineering, Hiroshima University
Bachelor of Engineering, Program of Mechanical systems Engineering, Hiroshima University

Work Experience

Dr. Takaki was engaged in research of photochromic materials and batteries. He received his Doctor of Engineering degree at Hiroshima University in 2022.

Research Content
(1) He majored in mechanical engineering at Hiroshima University, where he systematically studied mechanics, thermodynamics, fluid mechanics, and material mechanics.
(2) During his undergraduate course, he was a member of a laboratory researching functional materials such as carbon nanotubes, where he fabricated and analyzed zinc oxide nanostructures.
(3) During his master’s and doctoral studies, he worked in the same laboratory on metal oxides that exhibit a color change phenomenon when irradiated with light. This phenomenon is called photochromism. he started with the preparation of metal oxides that stably exhibit photochromism, analyzed the metal oxides, and considered the mechanism of photochromism (H. Takaki, S. Inoue, Y. Matsumura, Requirements for photochromism in double-layer metal oxide films, Chem. Phys. Lett. 732, 136620 (2019)). Samples were prepared by sputtering or spin-coating method and analyzed by scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Rutherford backscattering spectroscopy (RBS). he also explored the potential use of metal oxides exhibiting photochromism as batteries. he also studied the ozone-induced coloration of nickel oxide films.