Abstract

Flower-like silver vanadium oxide (SVO) micropatterns were realized by femtosecond laser in situ writing from its precursor. Self-assembled petals irradiated by a femtosecond laser were observed standing on the substrate along the scanned routine assisted by the formation of silver seeds and plasmonic-mediated effects. By controlling the concentration of ammonium monovanadate and the laser exposure time, a different thickness of petals was manipulated from $\sim 100\mathrm{nm}$ to micrometers. The SVO products were confirmed ${\mathrm{Ag}}_4{\mathrm{V}}_2{\mathrm{O}}_7$, ${\mathrm{AgVO}}_3$, and part of ${\mathrm{Ag}}_3{\mathrm{VO}}_4$ by x-ray diffraction (XRD) measurement. Photon-driven self-assembly for in situ fabrication of microstructures looks to be an effective and facile technique for SVO and other functional compounds.

© 2019 Optical Society of America

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