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One-step synthesis of hybrid liquid–crystal ZnO nanoparticles : existence of a critical temperature associated with the anisotropy of the nanoparticles

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Valverde Serrano,  Clara
Yael Politi, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Zhiqin, Z., Rémy, B., Valverde Serrano, C., Jean-Daniel, M., Mingotaud, C., & Myrtil L., K. (2016). One-step synthesis of hybrid liquid–crystal ZnO nanoparticles: existence of a critical temperature associated with the anisotropy of the nanoparticles. Chemistry – A European Journal, 22(44), 15614-15618. doi:10.1002/chem.201602742.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-5277-7
Abstract
Zinc oxide nanoparticles were obtained from the hydrolysis of an organometallic precursor in pure hexadecylamine. Interestingly, we demonstrate that the final (anisotropic or isotropic) shape of the nanoparticles is strongly correlated to the existence of a critical temperature. This suggest that the organization of the fatty amines is a paramount parameter in this synthesis. Moreover, the final hybrid ZnO materials systematically exhibit liquid crystal smectic phase while no liquid crystal phase is observed in the pristine reaction media. This simple process is therefore a direct and straightforward method to synthesize liquid-crystal hybrid materials.