NbN superconducting nanonetwork fabricated using porous silicon templates and high-resolution electron beam lithography

Salvato, M.; Baghdadi, Reza; Cirillo, C.; Prischepa, S. L.; Dolgiy, A. L.; Bondarenko, Vitaly; Lombardi, Floriana; Attanasio, C.

doi:10.1088/1361-6528/aa8479

Cited by 8 publications

(6 citation statements)

References 46 publications

(71 reference statements)

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“…These ideas comprise DNA sections as templates [ 117 ], molecular templates [ 118 ], and biomimetic templates from chitosan [ 119 ]. Other proposals made include self-assembled Si templates [ 120 ], combinations of porous Si with high-resolution electron beam lithography [ 121 ], block copolymer double gyroid-derived ceramic templates [ 122 ], and zeolite [ 123 ]. Using these new approaches, new superconducting materials were also obtained in nanowire form, including MgB

and

3-MoN [ 124 ].…”

Section: Discussionmentioning

confidence: 99%

Fabrication of Superconducting Nanowires Using the Template Method

Koblischka

Koblischka-Veneva

2021

Nanomaterials

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The fabrication and characterization of superconducting nanowires fabricated by the anodic aluminium oxide (AAO) template technique has been reviewed. This templating method was applied to conventional metallic superconductors, as well as to several high-temperature superconductors (HTSc). For filling the templates with superconducting material, several different techniques have been applied in the literature, including electrodeposition, sol-gel techniques, sputtering, and melting. Here, we discuss the various superconducting materials employed and the results obtained. The arising problems in the fabrication process and the difficulties concerning the separation of the nanowires from the templates are pointed out in detail. Furthermore, we compare HTSc nanowires prepared by AAO templating and electrospinning with each other, and give an outlook to further research directions.

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and

3-MoN [ 124 ].…”

Section: Discussionmentioning

confidence: 99%

Fabrication of Superconducting Nanowires Using the Template Method

Koblischka

Koblischka-Veneva

2021

Nanomaterials

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“…It is because of this that such a formulation of the problem has become relevant, after semiconductors, and for superconductors. Indeed, advances in the technology of nanoscale structures fabrication with sizes down to 10 nm using various original methods have made it possible to make breakthroughs in the fundamental question of the dependence of the properties of nanoscale superconductors on size and shape [31,[334][335][336][337][338][339][340][341]. Because in nanoscale specimens it is impossible to neglect the discretization of the electronic spectrum due to confinement [342,343], which, along with the modification of the phonon spectrum, lead to new mechanisms for the generation of a superconducting order parameter.…”

Section: Qse and Electron-phonon Couplingmentioning

confidence: 99%

Phonon softening in nanostructured phonon–mediated superconductors (review)

Prischepa

Kushnir

2023

J. Phys.: Condens. Matter

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Various aspects of phonon spectrum changes in nanostructured phonon-mediated superconductors are considered. It is shown how, with the development of experimental techniques and, accordingly, obtaining new results, the understanding of the influence of the surface and nanoscale on the magnitude of the electron-phonon interaction and the critical temperature Tc changed and deepened. The review is organized as follows. After the Introduction, in the first part we give the quick theoretical background for the description of superconductivity within the framework of various formalisms. In the second part we describe the properties of granular thin films paying attention to the impact of grain sizes and methods of deposition on the Tc value. The role of material parameters is underlined and different aspects of the behavior of granular thin films are discussed. In the third section the impact of external sources of modification of the phonon spectra like noble gases and organic molecules are considered. Problems and progress in this area are discussed. The fourth part is dedicated to the phonon modification and related quantum size effects in nanostructured superconductors. In the fifth part we review the results of direct evidence of phonon softening in nanostructured superconductors and in the sixth section we discuss a possible alternative description of the superconducting properties of nanostructured superconductors related to the concept of metamaterials. In the seventh and eighth parts we review the impact of substrates with lattice mismatched parameters and graphene sheets, respectively, on the modification of the phonon spectrum and enhancement of superconductivity in various superconducting thin films. Finally, in the last ninth section we consider the nonequilibrium superconductivity driven by femtosecond pulses of light, which leads to generation of coherent phonons and to a significant increase in the critical temperature in a number of superconducting materials.

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“…45 With those abilities, this technique can produce a narrow dimension of NPLA with high density, high accuracy, high resolution, high reliability, and high flexibility. [46][47][48][49][50][51] Generally, pattern formation with this technique can be divided into two categories, direct writing, and projection printing, and the chosen resist will determine the quality of the array. 52 Furthermore, in nanofabrication, the EBL process is followed by lift-off or etching depend on the requirement.…”

Section: Fabrication Of Nanopillar Arrays (Npla)mentioning

confidence: 99%

Review—Nanopillar Structure in the Direction of Optical Biosensor On-Chip Integration

Pradana

Septiani

Dipojono

et al. 2021

J. Electrochem. Soc.

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Biosensors based on nanomaterial have attracted so much interest due to their high-performance potential. Its structure allows the biosensor to have high sensitivity and selectivity. Nanopillar (NPLA) is one class of material with unique properties, especially optical properties. Its unique properties cause it to be the structure that has drawn so much attention recently. The advantages owned by NPLA, including high surface area and its unique optical properties, provide the possibility to build a sensitive layer for a biosensor that is very promising for health and medical applications. This structure also offers low-cost fabrication and can be produced on a mass scale due to its compactness and reliability. Furthermore, NPLA has a high capability to be used as optical biosensors. This article reviews diverse fabrication routes of NPLA structures. Their applications in biomolecular detection, mainly by optical approach, are highlighted. The comparison of the limit of detection of the different kinds of optical biosensors is also presented. The focus of this article lies on the possibilities of NPLA structure integrating into biosensors on-chip.

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NbN superconducting nanonetwork fabricated using porous silicon templates and high-resolution electron beam lithography

Cited by 8 publications

References 46 publications

Fabrication of Superconducting Nanowires Using the Template Method

Fabrication of Superconducting Nanowires Using the Template Method

Phonon softening in nanostructured phonon–mediated superconductors (review)

Review—Nanopillar Structure in the Direction of Optical Biosensor On-Chip Integration

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