Tunable Nanostructuring for van der Waals Materials

GI Tselikov and AA Minnekhanov and GA Ermolaev and GV Tikhonowski and IS Kazantsev and DV Dyubo and DA Panova and DI Tselikov and AA Popov and AB Mazitov and S Smirnov and F Lipilin and U Ahsan and ND Orekhov and I Kruglov and AV Syuy and AV Kabashin and BN Chichkov and Z Sofer and AV Arsenin and KS Novoselov and VS Volkov, ACS NANO, 19, 22820-22836 (2025).

DOI: 10.1021/acsnano.5c00546

van der Waals (vdW) materials are becoming increasingly popular in scientific and industrial applications because of their unique mixture of record electronic, optical, and mechanical properties. However, nanostructuring of vdW materials is still in its infancy and strongly depends on the specific vdW crystal. As a result, the universal self- assembled technology of vdW materials nanostructuring opens vast technological prospects. This work demonstrates an express and universal synthesis method of vdW nanoparticles with well-defined geometry using femtosecond laser ablation and fragmentation. The disarming simplicity of the technique allows us to create nanoparticles from over 50 vdW precursor materials, covering transition metal chalcogenides, MXenes, and other vdW materials. Obtained nanoparticles manifest perfectly defined crystalline structures and diverse shapes, from nanospheres to nanocubes and nanotetrahedrons. Thus, our approach illustrates a generalizable route to vdW nanostructuring with broad tunability in size, shape, and material composition, adaptable to specific application requirements.

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