A salicylaldehyde Schiff base hybrid lead iodide perovskite [SAPD]PbI3 (SAPD = 1-((2-hydroxybenzylidene)amino)pyridin-1-ium) was found to show a robust nonlinear optical response and large spontaneous polarization. We expect this work to inspire researchers to investigate the optical control of ferroelectricity in hybrid perovskites.
B. Deng, T. Cheng, Y. Hu, S. Cheng, C. Huang, H. Yu and Z. Wang, Chem. Commun., 2022, 58, 2192 DOI: 10.1039/D1CC05278K
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