Magnetic, Photoluminescent and Semiconductor Properties of a 4f-5d Bromide Compound

Authors

  • Wen-Tong Chen Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an, Jiangxi, 343009, China

DOI:

https://doi.org/10.17344/acsi.2019.5630

Keywords:

Lanthanide, mercury, magnetism, photoluminescence, semiconductor

Abstract

A novel 4f–5d material (HgDy6Br12)Hg8Br24 (1) is prepared by hydrothermal reactions and structurally characterized by single crystal X-ray diffraction. Compound 1 is characterized by a two-dimensional (2D) layered structure. A photoluminescence measurement with solid-state samples shows that this compound exhibits a strong emission in the blue region. A narrow optical band gap of 1.97 eV is revealed by a solid-state UV/Vis diffuse reflectance spectrum. The variable-temperature magnetic susceptibility obeys the Curie-Weiss law (cm= c/(T–q)) with C = 0.78 K and a Weiss constant θ = –0.38 K as revealed by the magnetic measurements, suggesting the existence of an antiferromagnetic interaction.

Author Biography

Wen-Tong Chen, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an, Jiangxi, 343009, China

Wen-Tong Chen

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Published

15.06.2020

Issue

Vol. 67 No. 2 (2020)

Section

Inorganic chemistry

License

Except where otherwise noted, articles in this journal are published under the Creative Commons Attribution 4.0 International License