論文雑誌「Journal of Materials Chemistry C」のカバーアートを制作しました［産業技術総合研究所］
弊社で制作しました産業技術総合研究所 岩佐祐希様のカバーアートが
イギリスの王立化学会発行の学術雑誌 Journal of Materials Chemistry C
2020年12月号 Front Coverに選ばれました。
Client
国立研究開発法人産業技術総合研究所
計量標準総合センター 物理計測標準研究部門
岩佐 祐希 様
計量標準総合センター 物理計測標準研究部門
岩佐 祐希 様
Journal
Journal of Materials Chemistry C
28 December 2020, Issue 48, Page 17125 to 17504 Link
28 December 2020, Issue 48, Page 17125 to 17504 Link
Abstract
We report the synthesis, crystal structure, and optical properties of a new layered perovskite oxychloride, Ba3Y2O5Cl2. The structural and electronic properties of the compound were studied and compared with those of related compounds, Ba3RE2O5Cl2 (RE = Sc, Gd, and Lu). Furthermore, the luminescence properties due to Eu-doping were investigated. Polycrystalline Ba3Y2O5Cl2 samples were successfully synthesized by a solid-state reaction. The space group of the compound was I4/mmm and the lattice constants were a = 4.3971(8) Å and c = 24.848(5) Å. The Y atom in this compound shifted toward the apical oxygen site owing to the asymmetric coordination of O and Cl. Moreover, large anisotropic displacements were observed at the O sites. The direct bandgap of the compound was 5.4 eV. As Y3+ ions with a distorted octahedron have an asymmetric coordination environment, both magnetic and electric dipole transitions were observed by doping Eu3+ to Y3+ sites. Ba3Y2O5Cl2:Eu 4% also showed a high internal quantum yield (IQY) (>70%). Therefore, considering the photoluminescence spectra and high IQY, this compound is a potential host lattice for optical materials.
Synthesis, structure, and luminescence properties of layered oxychloride Ba3Y2O5Cl2
Yuki Iwasa*, Yu Su, Yoshinori Tsuchiya, Makoto Tatsuda, Kohji Kishio, Takayuki Yanagida, Fumi Takada, Taichiro Nishio, Yoshihiro Tsujimoto, Kotaro Fujii, Masatomo Yashima and Hiraku Ogino
J. Mater. Chem. C, 2020,8, 17162-17168
Link
We report the synthesis, crystal structure, and optical properties of a new layered perovskite oxychloride, Ba3Y2O5Cl2. The structural and electronic properties of the compound were studied and compared with those of related compounds, Ba3RE2O5Cl2 (RE = Sc, Gd, and Lu). Furthermore, the luminescence properties due to Eu-doping were investigated. Polycrystalline Ba3Y2O5Cl2 samples were successfully synthesized by a solid-state reaction. The space group of the compound was I4/mmm and the lattice constants were a = 4.3971(8) Å and c = 24.848(5) Å. The Y atom in this compound shifted toward the apical oxygen site owing to the asymmetric coordination of O and Cl. Moreover, large anisotropic displacements were observed at the O sites. The direct bandgap of the compound was 5.4 eV. As Y3+ ions with a distorted octahedron have an asymmetric coordination environment, both magnetic and electric dipole transitions were observed by doping Eu3+ to Y3+ sites. Ba3Y2O5Cl2:Eu 4% also showed a high internal quantum yield (IQY) (>70%). Therefore, considering the photoluminescence spectra and high IQY, this compound is a potential host lattice for optical materials.
Synthesis, structure, and luminescence properties of layered oxychloride Ba3Y2O5Cl2
Yuki Iwasa*, Yu Su, Yoshinori Tsuchiya, Makoto Tatsuda, Kohji Kishio, Takayuki Yanagida, Fumi Takada, Taichiro Nishio, Yoshihiro Tsujimoto, Kotaro Fujii, Masatomo Yashima and Hiraku Ogino
J. Mater. Chem. C, 2020,8, 17162-17168
Link
