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Cr3+-doped Ga2O3 crystals with a corundum structure were synthesized under high temperature and high pressure, and their excitation as well as fluorescence properties were evaluated. The crystals were green under white light illumination but deep red when exposed to ultraviolet light. This is mainly attributable to R1 and R2 fluorescence spectra caused by the Cr3+ transition. The pressure-dependence of their fluorescence spectra is comparable with ruby (Al2O3:Cr3+), which is currently often used as a pressure scale. The excitation spectrum was shifted to the long-wavelength side compared with ruby, which enables excitation with long-wavelength lasers, even if the pressure effect is considered. In addition, the R1 and R2 peaks were well-separated with increasing pressure, which might have advantages over the ruby scale.

権利情報:

• In Copyright
  

  This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry , copyright © 2024 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.3c04028

キーワード: fluorescence , corundum, doping, gallium oxides, pressure scale

刊行年月日: 2024-02-05

出版者: American Chemical Society (ACS)

掲載誌:

• INORGANIC CHEMISTRY (ISSN: 00201669) vol. 63 issue. 5 p. 2695-2700

研究助成金:

• MEXT 19H05790
• JSPS 23K17711

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4406

公開URL: https://doi.org/10.1021/acs.inorgchem.3c04028

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更新時刻: 2025-01-22 12:30:22 +0900

MDRでの公開時刻: 2025-01-22 12:30:23 +0900