Co-melting and controlled crystallization of Cr3+-doped MgNb2O6 transparent glass-ceramics: Mg/Nb ratio tuning, dual-site Cr3+ occupancy, and broadband NIR luminescence (IMAGE)

Tsinghua University Press

Co-melting and controlled crystallization of Cr3+-doped MgNb2O6 transparent glass-ceramics: Mg/Nb ratio tuning, dual-site Cr3+ occupancy, and broadband NIR luminescence

Caption

Schematic of the co-melting and controlled crystallization strategy for Cr3+-doped MgNb2O6 transparent glass-ceramics. By tuning the Mg/Nb ratio in the SiO2–Na2O glass matrix, single-phase MgNb2O6 (Pbcn) microcrystals are precipitated, in which Cr3+ simultaneously occupies Mg2+ and Nb5+ octahedral sites. XRD and SEM confirm the formation of the GC, and the material exhibits dual-center broadband NIR emission at 701 and 852 nm under 422 and 452 nm excitation.

Credit

Journal of Advanced Ceramics, Tsinghua University Press

Usage Restrictions

News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only.

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.