Reductive-defect-suppressed titanium oxynitrides via Ca 3 N 2 -assisted topochemical nitridation

Key Points

• The aim is to synthesize titanium oxynitrides using a method that avoids reductive defects.
• Conducted one-step topochemical nitridation using Ca 3 N 2
• Focused on anion exchange between BaTiO 3 and nitrogen
• Employed ammonia-free conditions for the reaction
• Achieved successful anion exchange with reduced Ti 3+ related defects
• Produced bright-orange titanium oxynitrides
• Demonstrated improved material stability through defect suppression

Abstract