Fig. 1: A rapid approach to pure gold microsphere array fabrication. | Nature Communications

Fig. 1: A rapid approach to pure gold microsphere array fabrication.

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

Fig. 1

a Schematic illustration of the well-positioned transient-emulsion self-assembly and laser-irradiated ripening strategy for pure gold microsphere array fabrication, where the dark-blue background indicates the 1-butanol solvent environment. b A typical SEM image of gold colloidosomes obtained by the positioned transient-emulsion self-assembly. c Layer-by-layer melting and merging evolution of gold colloidosomes into gold microsphere under laser irradiation. d Corresponding SEM image of pure gold microsphere array after the laser-irradiated ripening process. e Diameter statistics of gold microspheres and colloidosomes, insets showing typical TEM image and SAED pattern of a gold microsphere. f Diameter control of gold colloidosomes and microspheres stemmed from adjusting the concentrations of aqueous gold nanosphere solution and the volume of the microholes. The error bars were obtained based on at least 50 values. Source data are provided as a Source Data file.

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