Experimental OES and STEM-EDX data corresponding to the generation of AuAg alloyed nanoparticles via spark ablation

The dataset contains temporally resolved optical emission spectra collected at different spatial positions in a spark gap between a pure gold and a pure silver electrode, used for the spark ablation-based synthesis of AuAg alloyed nanoparticles in atmospheric pressure Ar environment. The filename of each file includes the experimental conditions, such as the gap size and the spectral acquisition conditions as well as the spatial location. The latter spans over a wider range than the gap size. The dataset also contains the single-particle composition data of the generated nanoparticles at different gap sizes. For reference, composition data of AuAg nanoparticles generated from AuAg alloyed electrodes are also included.