Results 31 to 40 of about 52,768 (387)

Propagating, evanescent, and localized states in carbon nanotube-graphene junctions [PDF]

open access: yes, 2009
We study the electronic structure of the junctions between a single graphene layer and carbon nanotubes, using a tight-binding model and the continuum theory based on Dirac fermion fields.
F. Guinea   +4 more
core   +3 more sources

Aligned Graphene Nanoribbons and Crossbars from Unzipped Carbon Nanotubes [PDF]

open access: yes, 2010
Aligned graphene nanoribbon (GNR) arrays were made by unzipping of aligned single-walled and few-walled carbon nanotube (CNT) arrays. Nanotube unzipping was achieved by a polymer-protected Ar plasma etching method, and the resulting nanoribbon array was ...
Dai, Hongjie   +4 more
core   +2 more sources

Multiwall carbon nanotube microcavity arrays [PDF]

open access: yesJournal of Applied Physics, 2016
Periodic highly dense multi-wall carbon nanotube (MWCNT) arrays can act as photonic materials exhibiting band gaps in the visible regime and beyond terahertz range. MWCNT arrays in square arrangement for nanoscale lattice constants can be configured as a microcavity with predictable resonance frequencies.
Rajib Ahmed   +5 more
openaire   +3 more sources

Comparison of Synchrotron and Laboratory X-ray Sources in Photoelectron Spectroscopy Experiments for the Study of Nitrogen-Doped Carbon Nanotubes

open access: yesQuantum Beam Science, 2023
The chemical composition and stoichiometry of vertically aligned arrays of nitrogen-doped multi-walled carbon nanotubes (N-CNTs) were studied by photoelectron spectroscopy using laboratory and synchrotron X-ray sources. We performed careful deconvolution
Marina V. Il’ina   +4 more
doaj   +1 more source

Synthesis of large arrays of well-aligned carbon nanotubes on glass

open access: yesScience, 1998
Free-standing aligned carbon nanotubes have previously been grown above 700 degreesC on mesoporous silica embedded with iron nanoparticles. Here, carbon nanotubes aligned over areas up to several square centimeters were grown on nickel-coated glass below
Z. Ren   +6 more
semanticscholar   +1 more source

Gas Biosensor Arrays Based on Single-Stranded DNA-Functionalized Single-Walled Carbon Nanotubes for the Detection of Volatile Organic Compound Biomarkers Released by Huanglongbing Disease-Infected Citrus Trees. [PDF]

open access: yes, 2019
Volatile organic compounds (VOCs) released by plants are closely associated with plant metabolism and can serve as biomarkers for disease diagnosis. Huanglongbing (HLB), also known as citrus greening or yellow shoot disease, is a lethal threat to the ...
Liu, Gang   +6 more
core   +2 more sources

Photoprogrammed Multifunctional Optoelectronic Synaptic Transistor Arrays Based on Photosensitive Polymer‐Sorted Semiconducting Single‐Walled Carbon Nanotubes for Image Recognition

open access: yesAdvancement of science
The development of neuromorphic optoelectronic systems opens up the possibility of the next generation of artificial vision. In this work, the novel broadband (from 365 to 940 nm) and multilevel storage optoelectronic synaptic thin‐film transistor (TFT ...
Nianzi Sui   +9 more
semanticscholar   +1 more source

Fabrication of Carbon Nanotube-Based Nanodevices Using a Combination Technique of Focused Ion Beam and Plasma-Enhanced Chemical Vapor Deposition [PDF]

open access: yes, 2007
This study focuses on the fabrication of two nanodevice prototypes which utilized vertical and horizontal carbon nanotubes used the focused ion beam to localize the catalysts, followed by plasma-enhanced chemical vapor deposition.
Eastman, Micah   +8 more
core   +2 more sources

Photo-thermionic emission and photocurrent dynamics in low crystallinity carbon nanotubes

open access: yesJournal of Materiomics, 2021
Within this work, it is studied the photo-thermionic and photocurrent behavior of two kinds of carbon nanotube arrays, grown by chemical vapor deposition.
J.A. García-Merino   +3 more
doaj  

Theoretical and Experimental Studies of Schottky Diodes That Use Aligned Arrays of Single Walled Carbon Nanotubes [PDF]

open access: yes, 2010
We present theoretical and experimental studies of Schottky diodes that use aligned arrays of single walled carbon nanotubes. A simple physical model, taking into account the basic physics of current rectification, can adequately describe the single-tube
A. A. Pesetski   +40 more
core   +2 more sources

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