研究目的
Investigating the role of aging in the formation of non-spherical nanostructures during laser–matter interaction in water.
研究成果
The study demonstrates that pulsed laser ablation in liquids can selectively synthesize nanoparticles with specific morphology, size, and composition by adjusting external conditions such as pulse width. Aging plays a crucial role in the modification of nanoparticle morphology towards non-spherical structures.
研究不足
The study focuses on a limited set of metals (Al, In, Zn, Cu) and does not explore the full range of possible materials or conditions that could affect NP formation and aging.
1：Experimental Design and Method Selection:
The study involved pulsed laser ablation of aluminum, indium, zinc, and copper targets in distilled water using pulses of different duration (5 ns, 200 ps, and 30 fs) at wavelengths of 800 nm and 1064 nm.
2：Sample Selection and Data Sources:
Targets of Al, In, Zn, and Cu were ablated in distilled water. SEM, AFM, and TEM were used for morphology studies.
3：List of Experimental Equipment and Materials:
Ti:Sapphire laser for 30 fs and 200 ps pulses at 800 nm, Nd:YAG laser for 5 ns pulses at 1064 nm, 200 mm focal length lens, distilled water.
4：Experimental Procedures and Operational Workflow:
Laser radiation was focused on the metal surfaces in water, with each ablation process lasting 20 to 30 minutes.
5：Data Analysis Methods:
SEM, AFM, and TEM images were analyzed to study the morphology and size of NPs.
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