[Tu-A1-D] Quantum dots and low-dimensional perovskites

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[Tu-A1-D-02] Steric Engineering of Exciton Fine Structure in 2D Perovskites

〇Mateusz Dyksik¹, Michal Baranowski¹, Joshua J. P. Thompson², Zhuo Yang³, Martha R. Medina⁴, Duncan K. Maude⁵, Ermin Malic⁶, Maria A. Loi⁴, Paulina Plochocka^1,5 (1. Wroclaw Univ. of Sci. and Tech. (Poland), 2. Univ. of Cambridge (UK), 3. The Univ. of Tokyo (Japan), 4. Univ. of Groningen (Netherlands), 5. LNCMI (France), 6. Philipps-Univ. Marburg (Germany))

We investigate how structural composition tunes exciton fine structure in 2D perovskites. Organic spacer selection modulates exchange interaction, reorders bright and out-of-plane excitonic states, and links exchange energies to framework distortion, offering a route to optimize bright-dark splitting and emission efficiency.