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Updated: Jul 22, 2026

Nanomoulding of Functional Materials, a Versatile Complementary Pattern Replication Method to Nanoimprinting
Published on: January 23, 2013
Versatile synthesis of small NLO-active molecules forming amorphous materials with spontaneous second-order NLO
Eléna Ishow1, Cyril Bellaïche, Laurent Bouteiller
1ENS Cachan, PPSM (CNRS UMR 8531), 61 avenue du Président Wilson, 94235 Cachan Cedex, France. ishow2ppsm.ens-cachan.fr
Abstract:
A novel synthetic approach to a series of bulky triarylamines substituted by various electron-withdrawing groups and forming amorphous materials is presented. Under vacuum evaporation, thin films with high optical quality are obtained and exhibit spontaneous second-order nonlinear optical activity. This unprecedented result is likely due to subtle balance between strong dipole-dipole interactions and steric crowding causing self-assembly and noncentrosymmetric local ordering, stable up to one year.
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