Electrical Properties of Pd-contacted Single-walled Carbon Nanotubes: A Scanning Probe Microscopy Study

2010 ◽  
Vol 1258 ◽  
Author(s):  
Oleg Kononenko ◽  
S I Bozhko ◽  
V N Matveev ◽  
V T Volkov ◽  
M A Knyazev ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Probe Microscopy ◽  
Contact Potential Difference ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Probe ◽  
Contact Potential ◽  
Reliable Technique ◽  
Probe Microscopy ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

AbstractPd is widely used in producing electrodes to single-walled carbon nanotubes (SWNT). However up to now its ability to form ohmic contacts to SWNTs was not employed in scanning probe microscopy (SPM). Here we present a study of SWNTs with Pd electrodes by SPM using Pd-coated tips. SWNTs were selectively grown on oxidized silicon substrates by low pressure CVD method. Pd electrodes were prepared to SWNTs to fabricate two terminal structures for SWNTs resistance measurements. It is shown that SPM Kelvin mode is a reliable technique for SWNT detection on insulating substrate. Contact potential difference between Pd electrode and SWNT is measured using the Kelvin mode.

scholarly journals Supramolecular structures of terbium(iii) porphyrin double-decker complexes on a single-walled carbon nanotube surface

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 28135-28145
Author(s):  
Ahmed I. A. Abd El-Mageed ◽  
Takuji Ogawa
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Probe Microscopy ◽  
Single Walled Carbon Nanotubes ◽  
Supramolecular Structures ◽  
Scanning Probe ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Double Decker ◽  
Walled Carbon Nanotubes ◽  
First Time

For the first time, using scanning probe microscopy, the supramolecular structures of terbium porphyrin double-decker complexes were observed on single-walled carbon nanotubes surfaces, where the molecules formed a well-ordered self-assembled array.

Electron Transport in Single-Walled Carbon Nanotubes

MRS Bulletin ◽  
2004 ◽  
Vol 29 (4) ◽  
pp. 272-275 ◽  
Author(s):  
Paul L. McEuen ◽  
Ji-Yong Park
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Electronic Materials ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Probe ◽  
Device Performance ◽  
Single Walled Carbon ◽  
New Class ◽  
Potential Applications ◽  
Walled Carbon Nanotubes

AbstractSingle-walled carbon nanotubes (SWNTs) are emerging as an important new class of electronic materials. Both metallic and semiconducting SWNTs have electrical properties that rival or exceed the best metals or semiconductors known. In this article, we review recent transport and scanning probe experiments that investigate the electrical properties of SWNTs.We address the fundamental scattering mechanisms in SWNTs, both in linear response and at high bias.We also discuss the nature and properties of contacts to SWNTs. Finally, we discuss device performance issues and potential applications in electronics and sensing.

scholarly journals Direct curvature measurement of the compartments in bamboo-shaped multi-walled carbon nanotubes via scanning probe microscopy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jae-Won Jang
Keyword(s):  
Carbon Nanotubes ◽  
Scanning Probe Microscopy ◽  
Axial Direction ◽  
Lateral Force ◽  
Growth Direction ◽  
Scanning Probe ◽  
Probe Microscopy ◽  
Graphene Layers ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

AbstractBamboo-shaped multi-walled carbon nanotubes (BS-MWCNTs) have compartmented structures inherently obtained during their catalytic growth, and the curvature of the compartmented structure is known to be determined by the morphology of the metal catalysts. In this study, the inside curvature of the BS-MWCNTs was directly measured through scanning probe microscopy (SPM). The surface of the compartment structures of BS-MWCNTs has discontinuous graphene layers and different frictional force levels depending on the curvature direction. That of the inside curvature can be directly observed through tribological analysis by adding and subtracting the lateral force microscopy images obtained on opposite sides along the axial direction of the BS-MWCNT (diameter of 500 nm). This tells us the direction of the inside curvature of the BS-MWCNT, which was also confirmed by identifying the growth direction of the BS-MWCNTs via scanning electron microscopy. Our demonstration implies that SPM can give the same insight into the structural characterization of nanomaterials that is relatively inexpensive and more user-friendly than currently used methods.

Aggregation of Human Serum Albumin on Graphite and Single-Walled Carbon Nanotubes as Studied by Scanning Probe Microscopies

2011 ◽  
Vol 11 (6) ◽  
pp. 5491-5498 ◽  
Author(s):  
Andrés Rodríguez-Galván ◽  
FlavioF. Contreras-Torres ◽  
ElenaV. Basiuk ◽  
Edgar Alvarez-Zauco ◽  
Alejandro Heredia ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Single Walled Carbon Nanotubes ◽  
Scanning Probe ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Multi-Channel Exploration of O Adatom on TiO2(110) Surface by Scanning Probe Microscopy

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1506
Author(s):  
Huan Fei Wen ◽  
Yasuhiro Sugawara ◽  
Yan Jun Li
Keyword(s):  
Charge Transfer ◽  
Scanning Probe Microscopy ◽  
Contact Potential Difference ◽  
Tunneling Current ◽  
Potential Difference ◽  
Scanning Probe ◽  
Scanning Tunneling ◽  
Contact Potential ◽  
Probe Microscopy ◽  
Local Contact

We studied the O2 dissociated state under the different O2 exposed temperatures with atomic resolution by scanning probe microscopy (SPM) and imaged the O adatom by simultaneous atomic force microscopy (AFM)/scanning tunneling microscopy (STM). The effect of AFM operation mode on O adatom contrast was investigated, and the interaction of O adatom and the subsurface defect was observed by AFM/STM. Multi-channel exploration was performed to investigate the charge transfer between the adsorbed O and the TiO2(110) by obtaining the frequency shift, tunneling current and local contact potential difference at an atomic scale. The tunneling current image showed the difference of the tunneling possibility on the single O adatom and paired O adatoms, and the local contact potential difference distribution of the O-TiO2(110) surface institutively revealed the charge transfer from TiO2(110) surface to O adatom. The experimental results are expected to be helpful in investigating surface/interface properties by SPM.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
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