At the 19th Fluorine Chemistry Seminar held at Honokuni Toyohashi Arts Theatre PLAT, Chikamatsu gave an invited lecture. At the 48th Fluorine Chemistry Discussion Meeting, D1 Kamigaito delivered an oral presentation, while M2 Nakano, M2 Hagiwara, and M1 Tsukiji presented posters.

The paper on the fabrication of lead oxyfluoride epitaxial thin films has been published in J. Mater. Chem. C. This work is the result of a collaborative research effort with Hokkaido University.
“Fluoride-target-assisted growth of Pb₂OF₂ oxyfluoride films with anion ordering and high dielectric constant”

Chikamatsu gave an invited talk titled “Topochemical fluorination of barium-substituted bismuth ferrate thin films” at The 20th Industry-Academia Collaboration Subcommittee of the Fluorine Chemistry Society of Japan held at Waim Ochanomizu in Tokyo.