Fig. 2: Laser fluence factor and versatility. | Nature Communications

Fig. 2: Laser fluence factor and versatility.

From: Rapid fabrication of gold microsphere arrays with stable deep-pressing anisotropic conductivity for advanced packaging

Fig. 2

a Typical SEM images of gold colloidosomes with diameters of 375, 500, and 800 nm irradiated under varied laser fluences. b A phase diagram of the ripening evolution of gold colloidosomes under varying laser fluences according to the results of (a), the marks represent the position of the experimental results on the phase diagram. c Typical SEM images of Gold colloidosomes assembled from gold octahedrons, bipyramids, and non-uniform nanoparticles and their corresponding ripened gold microspheres after laser irradiation. d Typical scanning-TEM images of Au-Pd and Au-Ag-Pt core-shell nanoparticles used as building blocks, SEM images of their assembled colloidosomes and ripened Au-Ag-Pd-Pt alloy microspheres after laser irradiation, and EDS mapping of these four elements. Source data are provided as a Source Data file.

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