研究目的
To demonstrate a robust method for realizing the laser printing of plasmonic colors inside transparent gold nanodisk-embedded poly(dimethylsiloxane) matrices, enabling high spatial resolution, strong color contrast, and long-term durability.
研究成果
The study provides a robust method for the low-cost fabrication of large-area plasmonic patterns in 3D matrices, paving the way for a variety of potential applications ranging from plasmonic color 3D display, security labeling, 3D-printing of optical components and data storage.
研究不足
The manufacturing of plasmonic nanostructures usually involves multiple steps of nanofabrication that is of high cost and time consumption and is challenging to scale up.
1：Experimental Design and Method Selection:
The study employs a laser printing method to generate tunable structural colors through the melting and reshaping of large-scale imprinted nanostructures.
2：Sample Selection and Data Sources:
Colloidal circular Au nanodisks (NDs) of various diameters are chemically synthesized and embedded into poly(dimethylsiloxane) (PDMS) matrices.
3：List of Experimental Equipment and Materials:
A pulsed laser (1 ns, λ = 532 nm) is used for laser printing, and a Nikon Ti-U inverted microscope is employed for focusing the laser pulses.
4：Experimental Procedures and Operational Workflow:
Single laser pulses are employed to melt and reshape the embedded NDs through local heat generation. The shape and size of the resultant nanocrystals are controlled by adjusting the input pulse energy density.
5：Data Analysis Methods:
The extinction spectra of the color cells are measured, and the morphological change of the Au NDs is examined using scanning electron microscopy (SEM).
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