Results 31 to 40 of about 45,700 (258)

Shape and Composition Evolution in an Alloy Core–Shell Nanowire Heterostructure Induced by Adatom Diffusion

open access: yesNanomaterials, 2023
A core–shell nanowire heterostructure is an important building block for nanowire-based optoelectronic devices. In this paper, the shape and composition evolution induced by adatom diffusion is investigated by constructing a growth model for alloy core ...
Delong Han   +5 more
doaj   +1 more source

Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths [PDF]

open access: yes, 2013
Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector ...
Dorenbos, SN   +33 more
core   +1 more source

A Facile Synthesis of Graphene-WO3 Nanowire Clusters with High Photocatalytic Activity for O2 Evolution

open access: yesInternational Journal of Photoenergy, 2014
In the present work, graphene-WO3 nanowire clusters were synthesized via a facile hydrothermal method. The obtained graphene-WO3 nanowire clusters were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron ...
M.-J. Zhou, N. Zhang, Z. H. Hou
doaj   +1 more source

Effects of geometric parameters on photoemission of AlGaN nanowire array photocathode

open access: yesMaterials Research Express, 2022
In recent years, with the continuous development of solar blind ultraviolet photodetectors, III-V compounds are widely used as semiconductor materials. The nanowire array structure has excellent ‘light trapping effect’.
Zhihao Cao, Lei Liu, Feifei Lu
doaj   +1 more source

Superconducting nanowire single-photon detectors: physics and applications [PDF]

open access: yes, 2012
Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon-counting technology for infrared wavelengths.
Hadfield, Robert H   +5 more
core   +1 more source

Tunable Magnetic Properties of Interconnected Permalloy Nanowire Networks

open access: yesNanomaterials, 2023
In this study, we investigate the magnetic properties of interconnected permalloy nanowire networks using micromagnetic simulations. The effects of interconnectivity on the hysteresis curves, coercivity, and remanence of the nanowire networks are ...
Alejandro Pereira   +3 more
doaj   +1 more source

Top-down fabricated ZnO nanowire transistors for application in biosensors

open access: yes, 2012
Top-down ZnO nanowire FETs have been fabricated using mature photolithography, ZnO atomic layer deposition (ALD) and plasma etching. This paper investigates the effects of oxygen adsorption by measuring FET characteristics at different gate bias sweep ...
Ashburn, Peter   +9 more
core   +1 more source

Current Collapse-Free and Self-Heating Performances in Normally Off GaN Nanowire GAA-MOSFETs

open access: yesIEEE Journal of the Electron Devices Society, 2018
Normally off lateral GaN nanowire gate-all-around MOSFETs have been fabricated on the GaN-on-insulator substrate. The dynamic measurement proved that the devices with various nanowire heights exhibit current collapse-free characteristics implying that ...
Ki-Sik Im   +6 more
doaj   +1 more source

3D Simple Monte Carlo Statistical Model for GaAs Nanowire Single Photon Avalanche Diode

open access: yesIEEE Photonics Journal, 2020
GaAs based nanowire single photon avalanche diode (SPAD) has been demonstrated with extremely small afterpulsing probability and low dark count rate, and hence it has attracted wide attention for the near infrared applications.
Shiyu Xie   +3 more
doaj   +1 more source

Tailoring the Geometry of Bottom-Up Nanowires: Application to High Efficiency Single Photon Sources

open access: yesNanomaterials, 2021
For nanowire-based sources of non-classical light, the rate at which photons are generated and the ability to efficiently collect them are determined by the nanowire geometry.
Dan Dalacu   +2 more
doaj   +1 more source

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