2024
DOI: 10.1002/adom.202402372
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PEA2SnI4 Perovskite Thin Films for Photonics: Linear and Nonlinear Optical Properties and Waveguided Photoluminescence

Isaac Suárez,
Jesús Sánchez‐Díaz,
Hamid Pashaei Adl
et al.

Abstract: In this work, 2D PEA2SnI4 (PEA: 2‐phenylethanaminium) perovskite thin films, formed with the reducing agent NaBH4 to control the Sn+4 defects are investigated. Optical characterization of the films reveals idoneous properties for the development of photon sources, particularly an extraordinarily high absorption coefficient at the exciton resonance > 10 µm−1, the ability to enhance the light‐matter interaction due to the high refractive index. These linear optical properties are complemented with impressive … Show more

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