Beilstein J. Nanotechnol.2023,14, 133–140, doi:10.3762/bjnano.14.14
This work reports the formation of nanoflowers after annealing of Au/Nibilayers deposited on SiO2/Si substrates. The cores of the nanoflowers consist of segregated Ni silicide and Au parts and are surrounded by SiOx branches. The SiO2 decomposition is activated at 1050 °C in a reducing atmosphere, and
to the strong ability of Au to enhance SiO2 decomposition, and nanoflowers with less difference in their branches can be observed across the whole sample.
Keywords: Au/Nibilayers; dewetting; vapor–liquid–solid; SiO2 decomposition; SiOx nanowires; Introduction
Substantial efforts have been devoted
and significant to extend the previous research of Au–SiOx nanoflowers formed by an Au single layer to bilayers and explore potential fabrication parameters.
In the present work, nanoflowers made of a core nanoparticle and surrounding SiOx NWs are synthesized from annealing thin Au/Nibilayers with
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Figure 1:
Morphology around decomposed areas (a–c). Distribution and composition of nanoflowers and particles...