Anion substitution strategy for regulating crystal field and boosting NIR emission in Fe3+-doped double perovskite phosphors

Key Points

• Enhanced NIR emission was observed with specific anion substitutions in Fe3+-doped phosphors, resulting in improved optical properties.
• Key metric showed a significant increase in NIR intensity by 52% after optimal anion adjustments were applied during synthesis.
• Assessment involved testing various anions in double perovskite structures to determine their effects on crystal field strength and NIR output.
• Highlights the potential for designing advanced phosphor materials for applications in optoelectronics and display technologies.