Simultaneous broadening and enhancement of Cr 3+ photoluminescence in Ba 3 ZrTa 4 O 15 by chemical unit co-substitution

Key Points

• To investigate the effects of co-substitution on the photoluminescence properties of Ba3ZrTa4O15 doped with Cr3+.
• Implemented chemical unit co-substitution of Zr4+ with Al3+ and Ta5+ pairs.
• Measured near-infrared luminescence intensity and emission bandwidth before and after substitution.
• Analyzed photoluminescence characteristics to determine enhancements.
• Achieved a fourfold enhancement in near-infrared luminescence intensity.
• Broadened the emission bandwidth from 239 nm to 290 nm.