Chiral Perovskite Nanocrystal Growth inside Helical Hollow Silica Nanoribbons - Archive ouverte HAL
Article Dans Une Revue Nano Letters Année : 2023

Chiral Perovskite Nanocrystal Growth inside Helical Hollow Silica Nanoribbons

Résumé

Helical perovskite nanocrystals (H-PNCs) were prepared using nanometric silica helical ribbons as platforms for the in situ growth of the crystals using the supersaturated recrystallization method. The H-PNCs grow inside nanometric helical porous silica, and their handedness is determined by the handedness of porous silica templates. They show both strong induced circular dichroism (CD) and strong induced circularly polarized luminescence (CPL) signals, with high dissymmetry gfactors. Right-handed and left-handed PNCs show respectively positive and negative CD and CPL signals, with a dissymmetry gfactor (abs and lum) of ∼±2 × 10 −2. Simulations based on the boundary element method demonstrate that the circular dichroism originates from the chiral shape of H-PNCs.
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Dates et versions

hal-04274067 , version 1 (08-11-2023)

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Citer

Peizhao Liu, Yann Battie, Takaki Kimura, Yutaka Okazaki, Piyanan Pranee, et al.. Chiral Perovskite Nanocrystal Growth inside Helical Hollow Silica Nanoribbons. Nano Letters, 2023, 23 (8), pp.3174-3180. ⟨10.1021/acs.nanolett.2c04823⟩. ⟨hal-04274067⟩
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