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Two-dimensional electronic spectroscopy reveals distinct ultrafast photophysics in tricarbocyanine dyes: Polar solvation and photo-isomerization

Yogita Silori, Pankaj Seliya, and Arijit K. De

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Abstract

Using two-dimensional electronic spectroscopy, here we show how near-infrared tricarbocyanine dyes, DNTTCI and IR140, exhibit distinct excited-state relaxation pathways on ultrafast time-scale, polar solvation and photo-isomerization, respectively, which further depends on excitation wavelength.

© 2020 The Author(s)

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