Fabrication of Three-Dimensional Surface Structures with Highly Fluorescent Quantum Dots by Surface-Templated Layer-by-Layer Assembly


  • This work was supported by the Cambridge Interdisciplinary Research Collaboration (IRC) in Nanotechnology (UK). Supporting Information is available online from Wiley InterScience or from the author.


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A facile, parallel, and controllable approach to fabricating three-dimensional microscale structures with highly fluorescent quantum dots (QDs) over centimeter-sized surface regions is presented. Highly selective layer-by-layer assembly on a surface patterned by microcontact printing produces features of up to twenty QD/polymer bilayers. Hierarchical structures such as (green-QD/red-QD)n (see Figure) and (QD1/polymer)n(QD1/QD2)m are also fabricated.