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The Se nanoislands with amorphous and crystalline type were generated under femtosecond laser pulses irradiation on surface of Bi2Se3 single crystal at room temperature and ambient pressure. The position dependence of diameter distribution of Se nanoislands has been found between 50 -500 nm.

A novel approach for the production of both amorphous and crystalline selenium nanoparticles (SeNPs) using femtosecond laser-induced plasma shock wave on the surface of Bi2Se3 topological insulators at room temperature and ambient pressure is demonstrated. The shape and size of SeNPs can be reliably controlled via the kinetic energy obtained from laser pulses, so these are applicable as active components in nanoscale applications. Importantly, the rapid, low-cost and eco-friendly synthesis strategy developed in this study could also be extendable to other systems.