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Roark Chao

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Sep 2026

Structural Origins of Forbidden Emission in Two-Dimensional Lead Halide Perovskites

In bulk semiconductors, luminescence is treated under the electric dipole approximation, where magnetic dipole (MD) and higher-order multipolar transitions are assumed negligible under parity selection rules. However, two-dimensional (2D) metal-halide perovskites frequently exhibit anomalous low-energy emission signa...

Z. Azad, Owen Kuklinski, Roark Chao et al. · 0 citations

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