HARADA Ginji, a member of the Inorganic Crystal Chemistry Laboratory (Wagada Laboratory) and a second-year doctoral student in the Applied Chemistry Program, Graduate School of Science and Technology gave an oral presentation at the 40th Kanto Branch Symposium of the Ceramic Society of Japan held at the Nagano Campus (Engineering) of Shinshu University in Nagano Prefecture from September 3 to 4, 2024 and received the Excellence Award.
In the Inorganic Crystal Chemistry Laboratory, research into inorganic crystal growth using solution reaction, material application, and new functional materials is being conducted. In particular, the Laboratory members have been working on the growth of perovskite oxynitride single crystals (crystals without grain boundaries and with well-ordered atoms), which is expected to be a high dielectric constant material.
They have grown single crystals of SrTaO2N, a kind of perovskite oxynitride, by the NH3-assisted SrCl2 flux method. In this study, HARADA grew crystals from SrCl2-SrO binary flux with SrO added as a flux and researched the effects of SrO addition concentration on crystal growth, the surface chemical state of the crystals, and the chemical composition. These research results were highly evaluated, earning him the award.
Society name: 40th Kanto Branch Symposium of the Ceramic Society of Japan
Presenters: 〇HARADA Ginji and WAGATA Hajime
Title: SrTaO2N crystal growth by the NH3-assisted SrCl2 flux method and research on the effect of added SrO on the growth pattern
