Distance between oxygen vacancy and luminescence centers governs persistent luminescence mechanism

Key Points

• Persistent luminescence is influenced by the distance between oxygen vacancies and luminescence centers, which affects the luminescence mechanism.
• An analysis shows that shorter distances enhance persistent luminescence by altering electronic transitions involved in light emission.
• This study utilized a theoretical model to explore the interactions between oxygen vacancies and dopants.
• Findings highlight the importance of tuning this distance for optimizing luminescent materials in various applications.