研究目的
Investigating the generation of high quality, uniform and stable plasmonic colorants via laser direct writing for applications in optics, displays, decorations, data storage, and anti-counterfeiting.
研究成果
The study successfully established a plasmonic coloring system based on laser printing of embedded Ag@SiO2@Ag NPs formed by ion implantation. The system is robust, with facile fabrication and rich coloration, outperforming many other plasmonic color systems. It shows significant potential for industrial applications.
研究不足
The quality of the image and the speed of writing are not at their optimal at the current stage. The main discrepancy comes from the instability of the stage over the printing period of 10 h.
1：Experimental Design and Method Selection:
The study employs laser direct writing on silver nanoparticles (Ag NPs) embedded in quartz glass via ion implantation to generate plasmonic colors. The method involves tuning plasmon resonances by adjusting laser irradiation time and power.
2：Sample Selection and Data Sources:
Fused quartz glass slides were implanted with Ag+ ions to form Ag@SiO2@Ag NPs. The samples were characterized using TEM and SEM.
3：List of Experimental Equipment and Materials:
A 446 nm CW laser (CUBE, Coherent), 100× objective (Olympus, NA = 0.8), optofiber spectrometer (QePro, Ocean Optics), TEM (JEOL 2010), SEM (SIGMA ZEISS).
4：8), optofiber spectrometer (QePro, Ocean Optics), TEM (JEOL 2010), SEM (SIGMA ZEISS).
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The Ag@SiO2@Ag NPs were irradiated with a laser to generate plasmonic colors. The process involved varying laser power and irradiation time to tune the colors.
5：Data Analysis Methods:
Scattering spectra were recorded during irradiation. Temperature distributions around Ag NPs were simulated with COMSOL 5.3a, and scattering spectra of Ag NPs at different transformation stages were simulated with FDTD method (Lumerical Solutions).
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