Spatially Resolved Visualization of Long-Lived Charge Carriers in Al-Doped SrTiO₃ by the Time-Resolved Microscopy

Key Points

• The aim is to understand the microscopic origins of long-lived charge carriers in Al-doped SrTiO₃.
• Utilized patterned-illumination time-resolved phase microscopy
• Analyzed charge carrier dynamics in Al-doped strontium titanate
• Examined spatial distribution of charge carriers
• Identified regions with long-lived charge carriers in SrTiO₃:Al
• Demonstrated the influence of doping on charge carrier longevity
• Highlighted the potential impact on photocatalytic applications