Lee, Chan Uk Ma, Sunihl Ahn, Jihoon Kyhm, Jihoon Tan, Jeiwan Lee, Hyungsoo Jang, Gyumin Park, Young Sun Yun, Juwon Lee, Junwoo Son, Jaehyun Park, Ji-Sang Moon, Jooho 2024-01-19T11:04:09Z 2024-01-19T11:04:09Z 2022-09-15 2022-09 0002-7863 https://pubs.kist.re.kr/handle/201004/114590 Chiral perovskites have emerged as promising candidates for polarization-sensing materials. Despite their excellent chiroptical properties, the nature of their multiple-quantum-well structures is a critical hurdle for polarization-based and spintronic applications. Furthermore, as the origin of chiroptical activity in chiral perovskites is still illusive, the strategy for simultaneously enhancing the chiroptical activity and charge transport has not yet been reported. Here, we demonstrated that incorporating a Lewis base into the lattice can effectively tune the chiroptical response and electrical properties of chiral perovskites. Through solid-state nuclear magnetic resonance spectroscopic measurements and theoretical calculations, it was demonstrated that the material property manipulation resulted from the change in the time-averaged structure induced by the Lewis base. Finally, as a preliminary proof of concept, a vertical-type circularly polarized light photodetector based on chiral perovskites was developed, exhibiting an outstanding performance with a distinguishability of 0.27 and a responsivity of 0.43 A W-1. English American Chemical Society Tailoring the Time-Averaged Structure for Polarization-Sensitive Chiral Perovskites Article 10.1021/jacs.2c05849 1 Journal of the American Chemical Society, v.144, no.35, pp.16020 - 16033 Journal of the American Chemical Society 144 35 16020 16033 N scie scopus 000849834700001 Chemistry, Multidisciplinary Chemistry Article SOLID-STATE NMR LEWIS-BASE CIRCULAR-DICHROISM HYBRID PEROVSKITE THIN-FILMS EFFICIENT LIGHT