Observation of anomalous exciton-polariton bands in (PEA)2PbI4 perovskite based microcavity at room temperature

Key Points

• The aim is to investigate anomalous exciton-polariton bands in (PEA)2PbI4 perovskite microcavities.
• Utilized a non-Hermitian coupled oscillator model for simulation
• Conducted experimental observations at room temperature
• Compared simulated band structure to experimental data
• Observed anomalous energy bands with negative mass
• Simulation results closely aligned with experimental findings
• Indicated potential for studying polariton wave dynamics at room temperature

Abstract