ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces
3 years ago

Probing the Morphology and Evolving Dynamics of 3D Printed Nanostructures Using High-Speed Atomic Force Microscopy

Probing the Morphology and Evolving Dynamics of 3D Printed Nanostructures Using High-Speed Atomic Force Microscopy
Maja Dukic, Chen Yang, Harald Plank, Georg. E. Fantner, Robert Winkler, Jie Zhao
Focused electron beam induced deposition (FEBID) has been demonstrated as a promising solution for synthesizing truly three-dimensional (3D) nanostructures. However, the lack of morphological feedback during growth complicates further development toward higher spatial fabrication precision. Here, we show that by combining in situ high speed atomic force microscopy (HS-AFM) with FEBID, morphologies in multistep fabrication process can be accessed. More importantly, the proposed method enables simultaneous imaging and fabrication operation, which opens new possibilities to investigate evolving mechanical properties of the deposit. The experiments indicate an exponential increase law of the mechanical resistance, meaning that a mechanically stable state establishes around 4 min after deposition.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b07762

DOI: 10.1021/acsami.7b07762

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