Designing a super broadband near infrared material Mg₃Y₂Ge₃O₁₂:Cr³⁺ using cation inversion for future light sources.

ABSTRACT: A series of broad emission band near infrared materials Mg₃Y₂Ge₃O₁₂:Cr³⁺ (650-1200 nm) was prepared based on cation inversion. For trivalent chromium ions (Cr³⁺), garnet structural components can provide conditions for the occurrence of cation inversion. With an increase in Cr³⁺ concentration, the Mg²⁺ and Ge⁴⁺ cations are inverted to ensure valence equilibrium, which was explained by recording the low temperature spectrum of the structure and carrying out structural refinement. As a result, this structure provides a new luminescent center [GeO₆] for Cr³⁺, leading to a secondary enhancement in emission intensity. The wavelength of the main peak was found to move from 771

SUBMITTER: Meng X 

PROVIDER: S-EPMC9053909 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature