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Conducting polymer dendrite (CPD) morphogenesis is an electrochemical process that unlocks the potential to implement in materio evolving intelligence in electrical systems: As an electronic device experiences transient voltages in an…

The development of electronic devices, especially those that involve heterogeneous integration of materials, has led to increased challenges in addressing their thermal operational-temperature demands. The heat flow in these systems is…

As demonstrated in previous works, implantation with a MeV ion microbeam through masks with graded thickness allows the formation of conductive micro-channels in diamond which are embedded in the insulating matrix at controllable depths [P.…

Mesoscale and Nanoscale Physics · Physics 2016-09-21 F. Picollo , P. Olivero , F. Bellotti , Ž. Pastuović , N. Skukan , A. Lo Giudice , G. Amato , M. Jakšić , E. Vittone

A 4-period diamond undulator with a thickness of 20 $\mu$m was produced with the method of Chemical Vapour Deposition (CVD), applying boron doping, on a straight diamond crystal with an effective thickness of 165.5 $\mu$m. A planar (110)…

Accelerator Physics · Physics 2024-11-14 H. Backe , W. Lauth , P. Klag , Thu Nhi Tran Caliste

Porous metallic structures are regularly used in electrochemical energy storage devices as supports, current collectors or active electrode materials. Bulk metal porosification, dealloying, welding or chemical synthesis routes involving…

Applied Physics · Physics 2020-08-26 Vladimir Egorov , Colm O'Dwyer

Diamond is an electrical insulator in its natural form. However, when doped with boron above a critical level (~0.25 at.%) it can be rendered superconducting at low temperatures with high critical fields. Here we present the realization of…

We present a technique to fabricate ultrathin (down to 20 nm) uniform electron transparent windows at dedicated locations in a SiN membrane for in situ transmission electron microscopy experiments. An electron-beam (e-beam) resist is…

Mesoscale and Nanoscale Physics · Physics 2017-09-14 M. Neklyudova , A. K. Erdamar , L. Vicarelli , S. J. Heerema , T. Rehfeldt , G. Pandraud , Z. Kolahdouz , C. Dekker , H. W. Zandbergen

In this work we demonstrate a new Field Effect Transistor device concept based on hydrogen-terminated diamond (H-diamond) that operates in an Accumulation Channel rather than Transfer Doping regime. Our FET devices demonstrate both extreme…

Mesoscale and Nanoscale Physics · Physics 2025-01-14 Chunlin Qu , Isha Maini , Qing Guo , Alastair Stacey , David A. J. Moran

Polycrystalline boron-doped diamond (BDD) is widely used as a working electrode material in electrochemistry, and its properties, such as its stability, make it an appealing support material for nanostructures for electrocatalytic…

Materials Science · Physics 2023-06-13 Shayantan Chaudhuri , Andrew J. Logsdail , Reinhard J. Maurer

The control of the dielectric and conductive properties of device-level systems is important for increasing the efficiency of energy- and information-related technologies. In some cases, such as neuromorphic computing, it is desirable to…

Mesoscale and Nanoscale Physics · Physics 2020-07-28 Dimitrios Fraggedakis , Mohammad Mirzadeh , Tingtao Zhou , Martin Z. Bazant

In the future, when fossil fuels are exhausted, alternative energy sources will be essential for everyday needs. Hydrogen-based energy can play a vital role in this aspect. This energy is green, clean, and renewable. Elec-trochemical…

We study within a first-principle approach the band structure, vibrational modes and electron-phonon coupling in boron, aluminum and phosphorus doped silicon in the diamond phase. Our results provide evidences that the recently discovered…

Superconductivity · Physics 2007-05-23 E. Bourgeois , X. Blase

Selective ion transport is a hallmark of biological ion channel behavior but is a major challenge to engineer into artificial membranes. Here, we demonstrate, with all-atom molecular dynamics simulations, that bare graphene nanopores yield…

Mesoscale and Nanoscale Physics · Physics 2017-08-22 Subin Sahu , Michael Zwolak

Coating metal nanotips with a negative electron affinity material like hydrogen-terminated diamond bears promise for a high brightness photocathode. We report a recipe on the fabrication of diamond coated tungsten tips. A tungsten wire is…

Materials Science · Physics 2019-02-05 Alexander Tafel , Mingjian Wu , Erdmann Spiecker , Peter Hommelhoff , Juergen Ristein

The search for earth abundant, efficient and stable electrocatalysts that can enable the chemical reduction of CO2 to value-added chemicals and fuels at an industrially relevant scale, is a high priority for the development of a global…

Pristine polycrystalline boron-doped diamond electrodes (BDDEs) -- microcrystalline (B-MCDE) and ultrananocrystalline (B-UNCDE) were applied for the electrochemical reduction of several selected purine nucleotides -- Guanosine…

Nanodiamond is poised to become an attractive material for hyperpolarized 13C MRI if large nuclear polarizations can be achieved without the accompanying rapid spin-relaxation driven by paramagnetic species. Here we report enhanced and…

Mesoscale and Nanoscale Physics · Physics 2020-04-22 T. Boele , D. E. J. Waddington , T. Gaebel , E. Rej , A. Hasija , L. J. Brown , D. R. McCamey , D. J. Reilly

Chemical functionalization of diamond surfaces by hydrogen is an important method for controlling the charge state of near-surface fluorescent color centers, an essential process in fabricating devices such as diamond field-effect…

The magnetic field dependence of the superconductivity in nanocrystalline boron doped diamond thin films is reported. Evidence of a glass state in the phase diagram is presented, as demonstrated by electrical resistance and magnetic…

Superconductivity · Physics 2018-03-06 G. M. Klemencic , J. M. Fellows , J. M. Werrell , S. Mandal , S. R. Giblin , R. A. Smith , O. A. Williams

Membrane filtration is a vital industrial process, with applications including air purification and blood filtration. In this paper, we study the optimal design for a concertinaed filtration membrane composed of angled porous membranes and…

Fluid Dynamics · Physics 2021-07-01 Victoria E. Pereira , Mohit P. Dalwadi , Enrique Ruiz-Trejo , Ian M. Griffiths
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