Synchronous lifetime elongation and electron–phonon coupling reveal cascade sensitization in Sb-doped Cs4PbCl6 perovskite nanocrystals

Key Points

• Cascade sensitization enhances the optical properties of Sb-doped perovskite nanocrystals.
• Electron-phonon coupling contributes significantly to lifetime elongation measured at 10 nanoseconds.
• Observational analysis of perovskite nanocrystals uncovers mechanisms behind their unique properties.
• Findings suggest potential for improved materials in optoelectronic applications.