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Surface enhanced Raman spectroscopy (SERS) has established itself as a promising tool in optical sensing technology. Efforts have been made to improve practicalities of the technology with regards to costs of production, stability,…

Applied Physics · Physics 2023-03-28 Anindita Das , Udit Pant , Cuong Cao , Rakesh S. Moirangthem , Hitesh Bhanudas Kamble

We investigate a model nanopore sensor that is able to detect analyte ions that are present in the electrolyte solution in very small concentrations. The nanopore selectively binds the analyte ions with which the local concentrations of the…

Applied Physics · Physics 2018-12-31 Eszter Mádai , Mónika Valiskó , Dezső Boda

The short-wave infrared (SWIR) is an underexploited portion of the electromagnetic spectrum in metasurface-based nanophotonics despite its strategic importance in sensing and imaging applications. This is mainly attributed to the lack of…

Ordered Ag nanowire arrays with high aspect ratio and high density self-supporting Ag nanowire patterns were successfully prepared using potentiostatic electrodeposition within the confined nanochannels of a commercial porous anodic…

Materials Science · Physics 2011-06-15 Baoliang Sun , Xiaohong Jiang , Shuxi Dai , Zuliang Du

Technical challenges in molecule sensing and chemical detection have created an increasing demand for transformative materials with high sensitivity and specificity. Biohybrid nanopores have attracted growing interest as they can ideally…

Biological Physics · Physics 2022-04-05 Francois Sicard , A. Ozgur Yazaydin

We propose the use of superconducting nanowires as both target and sensor for direct detection of sub-GeV dark matter. With excellent sensitivity to small energy deposits on electrons, and demonstrated low dark counts, such devices could be…

High Energy Physics - Phenomenology · Physics 2019-10-16 Yonit Hochberg , Ilya Charaev , Sae-Woo Nam , Varun Verma , Marco Colangelo , Karl K. Berggren

The tunable properties of molecular materials place them among the favorites for a variety of future generation devices. In addition, to maintain the current trend of miniaturization of those devices, a departure from the present top-down…

In this work, Pt-Ti core-shell nanoparticles (NP) of 2 nm to 3 nm in size and 30000 u \pm 1500 u as specified single particle mass, deposited on flat silicon substrates by means of a mass-selected cluster beam source, were used for the…

In this letter, we report a three-dimensional (3D) quantum mechanical simulation to investigate the effects of surface roughness scattering (SRS) on the device characteristics of Si nanowire transistors (SNWTs). We treat the microscopic…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jing Wang , Eric Polizzi , Avik Ghosh , Supriyo Datta , Mark Lundstrom

We have performed thermal conductance measurements on individual single crystalline silicon suspended nanowires. The nanowires (130 nm thick and 200 nm wide) are fabricated by e-beam lithography and suspended between two separated pads on…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Olivier Bourgeois , T. Fournier , J. Chaussy

Nanoporous membranes have gained considerable interest in drug delivery1, ion transportation2, micro/nanofluidics3, molecular sensing4, and separation science5. Artificial kidneys, also known as dialyzers, reject pathogens and other…

Medical Physics · Physics 2023-10-30 Momena Monwar , Gerra Licup , M. Rashed Khan

Understanding the complex chemistry of functional nanomaterials is of fundamental importance. Controlled synthesis and characterization at the atomic level is essential to gain deeper insight into the unique chemical reactivity exhibited by…

InAs nanowires have been actively explored as the channel material for high performance transistors owing to their high electron mobility and ease of ohmic metal contact formation. The catalytic growth of non-epitaxial InAs nanowires,…

Group IV Ge1-xSnx semiconductors hold the premise of enabling broadband silicon-integrated infrared optoelectronics due to their tunable bandgap energy and directness. Herein, we exploit these attributes along with the enhanced lattice…

High-index spherical nanoparticles with low material losses support sharp high-Q electric and magnetic resonances and exhibit a number of interesting optical phenomena. Developments in fabrication techniques have enabled the further study…

Optics · Physics 2020-12-30 D. A. Pidgayko , Z. F. Sadrieva , K. S. Ladutenko , A. A. Bogdanov

A comparison of porous structures formed from silicon (Si) wafers with different resistivities has been reported here based on the morphological studies carried out using scanning electron microscope (SEM). The porous Si samples have been…

Mesoscale and Nanoscale Physics · Physics 2016-09-01 Shailendra K Saxena , Gayatri Sahu , P. K. Sahoo , Pankaj R. Sagdeo , Rajesh Kumar

Heller et. Al. (Science 311, 508 (2006)) demonstrated the first DNA-CN optical sensor by wrapping a piece of double-stranded DNA around the surface of single-walled carbon nanotubes (CN). This new type of optical device can be placed inside…

Mesoscale and Nanoscale Physics · Physics 2012-09-25 Anh D. Phan , Dustin A. Tracy , N. A. Viet

Focused ion beam milling allows manipulation of the shape and size of nanostructures to create geometries potentially useful for opto-electronics, thermoelectrics, and quantum computing. We focus on using the ion beam to control the…

Materials Science · Physics 2017-10-20 Sarah Friedensen , Jerome T. Mlack , Marija Drndić

Electronically conductive protein-based materials could enable the creation of bioelectronic components and devices from sustainable and nontoxic materials, while also being well-suited to interface with biological systems, such as living…

This paper presents investigated results of copper-oxide nanowires used as a humidity sensor. Copper-oxide nanowires films were grown over cross-comb type gold electrodes on a SiO2 substrate using thermal annealing technique, and its…

Applied Physics · Physics 2017-08-08 Ankit Vora , Arvind K. Srivastava