Abstract
Ultrafast laser-induced melting of silver nanoparticles (NPs) using a femtosecond laser pulse is investigated both theoretically and experimentally. The sintered Ag structure fabricated from printed Ag NP ink using femtosecond laser (1064 nm, 300 fs) irradiation is experimentally studied. A two-temperature model with dynamic optical properties and particle size effects on the melting temperature of Ag NPs is considered. The rapid phase change model is incorporated to simulate the Ag NPs’ ultrafast laser-induced melting process, and a multi-shot melting threshold fluence predicted from the simulated single-shot melting threshold is developed.
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The authors would like to thank the MOST 105-2221-E-009-063 for support of this research.
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Cheng, CW., Chang, CL., Chen, JK. et al. Femtosecond laser melting of silver nanoparticles: comparison of model simulations and experimental results. Appl. Phys. A 124, 371 (2018). https://doi.org/10.1007/s00339-018-1792-1
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DOI: https://doi.org/10.1007/s00339-018-1792-1