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Semiconductor-superconductor hybrids are commonly used in research on topological quantum computation. Traditionally, top-down approaches involving dry or wet etching are used to define the device geometry. These often aggressive processes…

The fabrication of three-dimensional (3D) nanostructures is of great interest to many areas of nanotechnology currently challenged by fundamental limitations of conventional lithography. One of the most promising direct-write methods for 3D…

介观与纳米尺度物理 · 物理学 2020-01-07 L. Skoric , D. Sanz-Hernández , F. Meng , C. Donnelly , S. Merino-Aceituno , A. Fernández-Pacheco

A generic process has been developed to grow nearly defect free arrays of (heterostructured) InP and GaP nanowires. Soft nanoimprint lithography has been used to pattern gold particle arrays on full 2 inch substrates. After lift-off organic…

The use of $\alpha$-tantalum in superconducting circuits has enabled a considerable improvement of the coherence time of transmon qubits. The standard approach to grow $\alpha$-tantalum thin films on silicon involves heating the substrate,…

The rapidly increasing interest in nanowires (NWs) of GaN and associated III-Nitrides for (opto-)electronic applications demands immediate addressal of the technological challenges associated with both NW-growth and device processing.…

Freestanding semiconductor nanowires have opened up new possibilities for semiconductor devices, enabling geometries, material combinations and strain states which were not previously possible. Along these lines, spontaneous bending in…

仪器与探测器 · 物理学 2021-07-28 Spencer W. McDermott , Ryan B. Lewis

Semiconductor nanowire lasers can produce guided coherent light emission with miniaturized geometry, bringing about new possibility for a variety of applications including nanophotonic circuits, optical sensing, and on-chip and chip-to-chip…

Dewetting of thin metal films is one of the most widespread method for functional plasmonic nanostructures fabrication. However, simple thermal-induced dewetting does not allow to control degree of nanostructures order without additional…

Semiconductor nanowires have been shown to exhibit novel optoelectronic properties with respect to bulk specimens made of the same material. However, if a semiconductor alloy has a miscibility gap in its phase diagram, at equilibrium it…

介观与纳米尺度物理 · 物理学 2017-01-16 M. Arjmand , J. H. Ke , I. Szlufarska

A bottom-up chemical vapor deposition (CVD) process for the growth of graphene nanomesh films is demonstrated. The process relies on silicon nanospheres to block nucleation sites for graphene CVD on copper substrates. These spheres are…

材料科学 · 物理学 2016-09-16 Matthias König , Günther Ruhl , Joerg-Martin Batke , Max C. Lemme

Metal halide perovskites, a class of cost-effective semiconductor materials, are of great interest for modern and upcoming display technologies that prioritize the light-emitting diodes (LEDs) with high efficiency and excellent color…

The fabrication of nanostructures with controlled assembly and architecture is significant for the development of novel nanomaterials-based devices. In this work we demonstrate that laser techniques coupled with low-temperature hydrothermal…

介观与纳米尺度物理 · 物理学 2017-08-28 Argyro N. Giakoumaki , George Kenanakis , Argyro Klini , Zacharias Viskadourakis , Maria Farsari , Alexandros Selimis

This review focuses on the investigation and enhancement of the thermoelectric properties of semiconducting nanowires (NWs). NWs are nanostructures with typical diameters between few to hundreds of nm and length of few to several microns,…

介观与纳米尺度物理 · 物理学 2021-01-05 Milo Yaro Swinkels , Ilaria Zardo

A method for growing nanoparticles with different elemental compositions simply by changing pulsing parameters in a power supply is demonstrated. The technique is based on high power pulsed hollow cathode sputtering, and the difference in…

介观与纳米尺度物理 · 物理学 2020-10-29 Sebastian Ekeroth , Robert Boyd , Nils Brenning , Ulf Helmersson

This thesis is focused on numerical simulations of the laser interaction with porous materials. A possibility of well-controlled processing is particularly important for the laser based micro-structuring of porous glass and nano-machining…

光学 · 物理学 2021-03-15 Hongfeng Ma

We report on photocurrent and photoconductance processes in a freely suspended p-doped single GaAs nanowire. The nanowires are grown by molecular beam epitaxy (MBE), and they are electrically contacted by a focused ion beam (FIB) deposition…

介观与纳米尺度物理 · 物理学 2015-05-13 S. Thunich , L. Prechtel , D. Spirkoska , G. Abstreiter , A. Fontcuberta i Morral , A. W. Holleitner

The fullerene (C60) nanowires, which possess a highly unusual morphology featured by a prism-like central core and three nanobelt-like wings joined along the growth direction to give an overall Y-shaped cross section, have been studied. The…

Single-walled carbon nanotubes (SWCNTs) are promising for nanoscale electronics and photonics, but practical deployment requires chirality control. Most catalytic chemical vapor deposition (CCVD) growth of SWCNTs proceeds on liquid metal…

材料科学 · 物理学 2026-02-20 Daniel Hedman

A facile, low-temperature precipitation-based method is utilized to demonstrate the synthesis of ultra-thin and highly-uniform cesium lead bromide perovskite nanowires (NWs). The reactions facilitate the NWs crystalline nature over…

介观与纳米尺度物理 · 物理学 2020-10-30 A. Kostopoulou , M. Sygletou , K. Brintakis , A. Lappas , E. Stratakis

We report a simple and versatile waterborne synthesis of magnetic nanowires following the innovative concept of electrostatic "desalting transition". Highly persistent superparamagnetic nanowires are generated from the controlled assembly…

材料科学 · 物理学 2011-08-11 M. Yan , J. Fresnais , S. Sekar , J. -P. Chapel , J. -F. Berret