Femtosecond laser melting of silver nanoparticles: comparison of model simulations and experimental results

被引：0
作者：
Chung-Wei Cheng
Chin-Lun Chang
Jinn-Kuen Chen
Ben Wang
机构：
[1] National Chiao Tung University,Department of Mechanical Engineering
[2] University of Missouri,Department of Mechanical and Aerospace Engineering
[3] Georgia Institute of Technology,H. Milton Stewart School of Industrial and Systems Engineering and Manufacturing Research Center
来源：
Applied Physics A | 2018年 / 124卷
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摘要：
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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