Multidimensional nanodevice architectures for low-perturbation single ion detection.
Local Manager: Fabio De Matteis; PI: Francesco Rossella (PV).
MANIFOLD is an INFN project that has started in 2024 and last for three years. MANIFOLD involves four INFN units: Pavia, Laboratori Nazionali di Legnaro, Roma-Tor Vergata, and Laboratori Nazionali del Gran Sasso. The national coordinator is Prof. Rossella, who is associated with the Pavia unit.
Ultimately, MANIFOLD aims to demonstrate a novel technology platform that enables low-perturbation probing of diluted ion beams by exploiting their contactless electrodynamic interaction with nanomaterials, thereby boosting deterministic ion implantation in arbitrary substrates with unprecedented control.
The paradigmatic idea is exploiting the electromagnetic perturbation carried by the flying ion and its impact on the electrostatics of voltage-biased nanomaterial-based devices acting as ultrasensitive capacitors.
This concept will be developed resorting to a nanomaterial platform constituted by ordered arrays of vertically aligned multiwalled carbon nanotubes.
During the first year of activity TV unit has implemented the deposition Chamber with two thermal evaporator to deposit iron and nickel catalyst on the substrates. (fig.1) In addition the chemical vapor deposition system(CVD) will be upgraded with a additional gas- supplier (Nitrogen) (fig.2).
The first carbon nanotube (CNT) films produced were tested by Modena unit that started with preliminary test consisting in obtaining channels of definite dimensions in the films for the subsequent measurements. (Fig.3)
References:
Borsoi, F., Zuo, K., Gazibegovic, S. et al. Transmission phase read-out of a large quantum dot in a nanowire interferometer. Nat Commun 11, 3666 (2020). https://doi.org/10.1038/s41467-020-17461-5
Fahd Rajab, Effect of the chemical vapor deposition process on the aspect ratio of vertically aligned carbon nanotubes (VACNTs), MRS Advances (2023) 8:343–348. https://doi.org/10.1557/s43580-022-00392-2