Rashba-Type Band Splitting Effect in 2D (PEA)2PbI4 Perovskites and Its Impact on Exciton-Phonon Coupling

Supriya Ghosh1,2, Bapi Pradhan3, Arkamita Bandyopadhyay4

  • 1School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany.

Summary

Organic spacer cation polarity is key to Rashba band splitting in 2D Ruddlesden-Popper perovskites. Low polarity cations induce distortions crucial for this electronic property and exciton-phonon interactions.

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