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Nano Lett. 2014 Jul 9;14(7):4023-9. doi: 10.1021/nl501460x. Epub 2014 Jun 25.

Plasmonic color palettes for photorealistic printing with aluminum nanostructures.

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Institute of Materials Research and Engineering, A*STAR , 3 Research Link, Singapore 117602, Singapore.


We introduce the first plasmonic palette utilizing color generation strategies for photorealistic printing with aluminum nanostructures. Our work expands the visible color space through spatially mixing and adjusting the nanoscale spacing of discrete nanostructures. With aluminum as the plasmonic material, we achieved enhanced durability and dramatically reduced materials costs with our nanostructures compared to commonly used plasmonic materials such as gold and silver, as well as size regimes scalable to higher-throughput approaches such as photolithography and nanoimprint lithography. These advances could pave the way toward a new generation of low-cost, high-resolution, plasmonic color printing with direct applications in security tagging, cryptography, and information storage.


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