Robust, directed assembly of fluorescent nanodiamonds
Mehran Kianinia, Andreas W. Schell, Olga Shimoni, Steven J. Randolph,, Milos Toth, Igor Aharonovich, Charlene J. Lobo
TL;DR
This paper introduces a robust method for assembling fluorescent nanodiamonds into large, durable arrays with high yield, enabling advanced applications in sensing and nanophotonics.
Contribution
A simple covalent bonding-based technique for directed assembly of nanodiamonds into macroscopic, durable arrays applicable to various materials and surfaces.
Findings
Assembly yield exceeds 90%
Arrays withstand ultra-sonication for over three hours
Method applicable to non-planar surfaces
Abstract
Arrays of fluorescent nanoparticles are highly sought after for applications in sensing and nanophotonics. Here we present a simple and robust method of assembling fluorescent nanodiamonds into macroscopic arrays. Remarkably, the yield of this directed assembly process is greater than 90% and the assembled patterns withstand ultra-sonication for more than three hours. The assembly process is based on covalent bonding of carboxyl to amine functional carbon seeds and is applicable to any material, and to non-planar surfaces. Our results pave the way to directed assembly of sensing and nanophotonics devices.
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