Disentangling Excimer Emission from Chiral Induction in Nanoscale Helical Silica Scaffolds Bearing Achiral Chromophores

Peizhao Liu (1) , Yann Battie , Yutaka Okazaki , Naoya Ryu , Emilie Pouget (1) , Sylvain Nlate , Takashi Sagawa (2) , Reiko Oda (1)

1 CBMN - Chimie et Biologie des Membranes et des Nanoobjets
2 Graduate School of Energy Science

Helical and twisted silica nanoribbons, deposited in an in-plane direction and with a random orientation, on a quartz substrate showed chiral optical scattering, and the helical nanoribbons had a g-factor of the order of 10 À2 below 250 nm. Their signs depend on the handedness of the nanohelices. The effect of the morphology and the orientation of the helices on the chiral optical scattering were investigated with simulations via the boundary element method.

Domaines: Chimie

Peizhao Liu, Yann Battie, Yutaka Okazaki, Naoya Ryu, Emilie Pouget, et al.. Disentangling Excimer Emission from Chiral Induction in Nanoscale Helical Silica Scaffolds Bearing Achiral Chromophores. ChemPhysChem, In press, 57 (90), pp.12024 - 12027. ⟨10.1002/cphc.202200573⟩. ⟨hal-03859877v1⟩