Luminescence-driven reversible handedness inversion of self-organized helical superstructures enabled by a novel near-infrared light nanotransducer.

Wang, Ling; Dong, Hao; Li, Yannian; Liu, Rui; Wang, Ye-Fu; Bisoyi, Hari Krishna; Sun, Ling-Dong; Yan, Chun-Hua et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

Nanotransducer-impregnated self-organized helical superstructures are found to exhibit unprecedented reversible handedness inversion upon irradiation by the dual-wavelength near-infrared light. Upon near-infrared laser irradiation at 808 nm, the helical twist sense changes from right-handed to left-handed through an achiral liquid-crystal phase, whereas its reverse process occurs upon the near-infrared laser irradiation at 980 nm.