Gold contact to individual metallic carbon nanotubes: A sensitive nanosensor for high-pressure

Caillier, Ch.; Ayari, A.; Gouttenoire, V.; San-Miguel, Alfonso; Jourdain, Vincent; Picher, Matthieu; Sauvajol, Jean‐Louis

doi:10.1063/1.3507389

Cited by 19 publications

(12 citation statements)

References 29 publications

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“…This value is smaller than the 20 % GPa 1 which was derived experimentally in Ref. [53]. The symmetrically contacted collapsed (18,0) SWCNT have a resistance 30 to 15 times smaller than the resistance of the contacted pristine tubes.…”

Section: Numerical Modelingmentioning

confidence: 53%

“…On the other hand, the tube-tube contact can be improved by the pressure e↵ect in three di↵erent ways: (i) the evolution of the potential barrier width due to the reduction of the van der Walls tube-tube distance with pressure; (ii) the reduction of the potential barrier due to the electronic structure modification of the outer tubes and (iii) the surface enhancement of the contact area associated to a tube radial deformation. The potential barrier reduction under high pressure due to the distance decrease has been analysed by Caillier et al [53] in nanotube-gold contacts in a pressure domain up to 1 GPa. Using this model, the expected variation of contact resistance is of 20 % per GPa for tube-tube contacts.…”

Section: Electrical Resistivity Under High Pressurementioning

confidence: 99%

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Radial collapse of carbon nanotubes for conductivity optimized polymer composites

Balima

Floch

Adessi

et al. 2016

Carbon

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The optimization of the electronic conduction of carbon nanotube polymer composites is studied by tuning the radial geometry of the carbon nanotubes in a compression cycle. We have investigated the structural evolution of multi-walled carbon nanotubes in a polyamide matrix as a function of applied high pressure. Combining high resolution electron microscopy and small angle neutron scattering experiments, we conclude that the nanotube radial cross-section is irreversibly deformed following applied pressures up to 5 GPa. Studying highly percolated composites we observe that the sample resistivity drastically decreases with pressure up to about 2 GPa with no further change up to the maximum 5 GPa applied pressure. An important hysteresis is observed upon decompression which leads to an enhanced electrical con

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Section: Numerical Modelingmentioning

confidence: 53%

Section: Electrical Resistivity Under High Pressurementioning

confidence: 99%

Radial collapse of carbon nanotubes for conductivity optimized polymer composites

Balima

Floch

Adessi

et al. 2016

Carbon

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“…In fact, pressure will reduce very effectively the carbon‐substrate distance increasing then the interaction between the two subsystems. This has been for instance shown on gold contacted carbon nanotubes submitted to pressure in which the evolution of that distance was found to be comparable with the evolution of the graphene–graphene distance in graphite under pressure . This pressure induced distance evolution is much more important than the in‐plane carbon–carbon distance …”

Section: The Mechanical Response Of Graphene and Raman Spectroscopymentioning

confidence: 55%

Raman scattering studies of graphene under high pressure

Machon

Bousige

Alencar

et al. 2017

J Raman Spectroscopy

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The effect of pressure -by definition a 3-dimensional concept -on 2-dimensional systems brings a number of fundamental questions, which have been partly answered through newly engineered samples and experimental setups. In this review of the high-pressure Raman studies of graphene, we will in particular underline the importance of the presence of a supporting substrate and its role for the production of biaxial strain conditions in high pressure experiments. Raman shifts observed during these experiments may be related to the strain induced by the substrate rather than by the applied pressure, graphene stress, and hydrostatic pressure not being straightforwardly equivalent in this case of a composite 2D-on-3D material. We will also consider the effects of the nature of the substrate surface, the nature of the pressure transmitting media, as well as the effect of the number of layers on the high-pressure response of the 2D-system, by using the phonon behavior as strain probe as pressure is applied. The effects of adhesion and of strain transfer from the substrate to the 2D-system will be at the heart of our discussion.

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“…It is thus the objective of this work to give an insight on the effect of various contacts, such as platinum and tungsten, which have not been explored much at high frequency. Our choice of materials is guided by the fact that other noble metals such as gold and palladium 2158-3226/2014/4(8)/087136/9 C Author(s) 2014 4, 087136-1 have been routinely investigated 10,11 and hence our objective is to look for other options. We seek for metals that can be used for sensor devices that operate at elevated temperatures and because tungsten and platinum have very high melting points than many others they do not suffer much from electron migration.…”

mentioning

confidence: 99%

The effect of metal-contacts on carbon nanotube for high frequency interconnects and devices

Chimowa

Bhattacharyya

2014

AIP Advances

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Articles you may be interested inTuning of the electro-mechanical behavior of the cellular carbon nanotube structures with nanoparticle dispersions Appl. Phys. Lett. Contact resistance between metal and carbon nanotube interconnects: Effect of work function and wettability Appl. Phys. Lett. 95, 264103 (2009); 10.1063/1.3255016 Simultaneous atomic force microscopy measurement of topography and contact resistance of metal films and carbon nanotubes Rev. Sci. Instrum. 74, 3653 (2003);High frequency characterisation of platinum and tungsten contacts on individual multi-walled carbon nanotubes (MWNT) is performed from 10 MHz to 50 GHz. By measuring the scattering parameters of aligned individual MWNTs, we show that metal contacts enhance an inductive response due to the improved MWNTelectrode coupling reducing the capacitive effect. This behaviour is pronounced in the frequency below 10 GHz and strong for tungsten contacts. We explain the inductive response as a result of the interaction of stimulus current with the localized (or defects) states present at the contact region resulting in the current lagging behind the voltage. The results are further supported by direct current measurements that show tungsten to significantly increase carbon nanotube-electrode coupling. The immediate consequence is the reduction of the contact resistance, implying a reduction of electron tunnelling barrier from the electrode to the carbon nanotube. C 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. [http://dx.

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Gold contact to individual metallic carbon nanotubes: A sensitive nanosensor for high-pressure

Cited by 19 publications

References 29 publications

Radial collapse of carbon nanotubes for conductivity optimized polymer composites

Radial collapse of carbon nanotubes for conductivity optimized polymer composites

Raman scattering studies of graphene under high pressure

The effect of metal-contacts on carbon nanotube for high frequency interconnects and devices

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