Resonant Mass Detector Based on Carbon Nanowhiskers with Traps for Nanoobjects Weighing

Abstract

Nano‐mechanical oscillator (NMO) based on amorphous carbon nanowhisker (CNW) with nanotraps for resonant weighting of nanoparticles in range of mass (10−14–10−15) g is presented. NMO with nanotraps is fabricated on the top of tungsten tip using focused electron beam technique. For resonant weighting the gold nanospheres are captured under the exposure of an electron beam by nanotraps locate on the top of CNW. Jump of gold nanoparticle to the nanotrap and oscillations of CNW are visualized using scanning electron microscope (SEM). The NMO amplitude‐frequency characteristics are calculated via automated numerical analysis of the sequence of SEM images obtained during the oscillations frequency sweeping. In order to calibrate the resonance mass detector based on CNW with nanotrap the gold nanosphere with diameter of (170 ± 5) nm and mass of (49.6 ± 9.2) × 10−15 g is weighed in vacuum.

Selected Area Deposition of PtCx Nanostructures: Implications for Functional Coatings of 3D Nanoarchitectures

“…Various size scales have been explored historically, but recent pushes have extended three-dimensional additive manufacturing toward the micro- and nano-scale. , While several techniques like direct-ink writing, , multi-photon lithography, , electrohydrodynamic printing, dip-pen lithography, laser induction, − and other methods in principle work in the sub-micron regime, focused electron and ion beam-induced deposition (FEBID/FIBID) is likely the most developed technique for synthesizing complex architectures in three dimensions. Several applications have been demonstrated, including nanomechanical resonating sensors, , advanced scanning probe tips, chiral plasmonics, plasmonic split ring resonators, and magnetic architectures …”

“…1,2 While several techniques like direct-ink writing, 3,4 multi-photon lithography, 5,6 electrohydrodynamic printing, 7 dip-pen lithography, 8 laser induction, 9−12 and other methods 13 in principle work in the submicron regime, focused electron and ion beam-induced deposition (FEBID/FIBID) is likely the most developed technique for synthesizing complex architectures in three dimensions. Several applications have been demonstrated, including nanomechanical resonating sensors, 14,15 advanced scanning probe tips, 16 chiral plasmonics, 17 plasmonic split ring resonators, 18 and magnetic architectures. 19 In FEBID, a focused electron beam is used to decompose precursor molecules that adsorb onto the substrate, resulting in the condensation of by-products and the formation of a nanoscale deposit.…”

Parametric Optothermal Modulation of Carbon Nanooscillator Decorated with Mie Resonant Silicon Particle

“…The geometry of the structures can be fully controlled in three‐dimensions (3D) by positioning the electron beam forming wired structures. [ 11,26,27 ] The material of EBID‐synthesized nanostructures is identified as a graphitic amorphous carbon with high sp 2 ‐fraction, which properties are close to glassy carbon, [ 28 ] and its density is estimated as 2.2 gcm −3 . [ 27 ] Figure 1b shows SEM image of the synthesized cylindrical NW with length L = 5.38 $$\umu{\rm m}$$, average diameter d = 164 nm and estimated mass is 250 fg.…”

Nanomass Sensing via Node Shift Tracing in Vibrations of Coupled Nanowires Enhanced by Fano Resonances

“…An alternative is to employ in situ visualization of NW vibrations in scanning electron , or transmission electron , microscopes (SEM and TEM, respectively). The resonance frequency shift is typically acquired from the amplitude measurements during the frequency sweep.…”