Francesco Merola, Simonetta Grilli, Sara Coppola, Veronica Vespini, Sergio De Nicola, Pasquale Maddalena, Cosimo Carfagna and Pietro Ferraro Reversible Fragmentation and Self-Assembling of Nematic Liquid Crystal Droplets on Functionalized Pyroelectric Substrates Advanced Functional Materials 22
The pyroelectric effect is able to drive a reversible fragmentation process in liquid crystal drops, starting from nanoliter drops and obtaining pico/femtoliter droplets. These small droplets are patterned according to the geometry of the substrate and aligned along the electric field lines. Applications such as spatial modulation of the wettability and dynamical optical elements able to switch from a diffuser (fragmentation) state to a microlens array (coalescence state) are foreseen.
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