High-resolution combinatorial patterning of functional nanoparticles.

ABSTRACT: Fast, low-cost, reliable, and multi-component nanopatterning techniques for functional colloidal nanoparticles have been dreamed about by scientists and engineers for decades. Although countless efforts have been made, it is still a daunting challenge to organize different nanocomponents into a predefined structure with nanometer precision over the millimeter and even larger scale. To meet the challenge, we report a nanoprinting technique that can print various functional colloidal nanoparticles into arbitrarily defined patterns with a 200?nm (or smaller) pitch (>125,000 DPI), 30?nm (or larger) pixel size/linewidth, 10?nm position accuracy and 50?nm overlay precision. The nanopatterning technique combines dielectrophoretic enrichment and deep surface-energy modulation and therefore features high efficiency and robustness. It can form nanostructures over the millimeter-scale by simply spinning, brushing or dip coating colloidal nanoink onto a substrate with minimum error (error ratio < 2?×?10^-6). This technique provides a powerful yet simple construction tool for large-scale positioning and integration of multiple functional nanoparticles toward next-generation optoelectronic and biomedical devices.

SUBMITTER: Xing X 

PROVIDER: S-EPMC7691364 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature