Piezoelectric effect in non-uniform strained carbon nanotubes

Il’ina, M. V.; Blinov, Yu. F.; Il’in, O. I.; Rudyk, N N; Агеев, О. А.

doi:10.1088/1757-899x/256/1/012024

Cited by 20 publications

(10 citation statements)

References 9 publications

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“…Thus, the developed technique allows us to experimentally estimate the value of a current generated by deforming a carbon nanotube as a result of a direct piezoelectric effect. The obtained results correlate with the experimental and theoretical studies carried out by us earlier [3,44].…”

Section: A Technique For Determining the Piezoelectric Response Of Vesupporting

confidence: 89%

“…Recent work in the field of investigation of electromechanical properties of carbon nanostructures has shown the possibility of manifesting flexoelectric and piezoelectric effects in them [3,[43][44][45][46]. In this connection, an urgent task was the development of a technique for determining the piezoelectric response of vertically aligned carbon nanotubes because the use of the piezoresponse force microscopy in this case is difficult.…”

Section: A Technique For Determining the Piezoelectric Response Of Vementioning

confidence: 99%

See 1 more Smart Citation

Scanning Probe Techniques for Characterization of Vertically Aligned Carbon Nanotubes

Il’ina¹,

Il’in²,

Smirnov³

et al. 2019

Atomic-Force Microscopy and Its Applications

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This chapter presents the results of experimental studies of the electrical, mechanical and geometric parameters of vertically aligned carbon nanotubes (VA CNTs) using scanning probe microscopy (SPM). This chapter also presents the features and difficulties of characterization of VA CNTs in different scanning modes of the SPM. Advanced techniques for VA CNT characterization (the height, Young's modulus, resistivity, adhesion and piezoelectric response) taking into account the features of the SPM modes are described. The proposed techniques allow to overcome the difficulties associated with the vertical orientation and high aspect ratio of nanotubes in determining the electrical and mechanical parameters of the VA CNTs by standard methods. The results can be used in the development of diagnostic methods as well as in nanoelectronics and nanosystem devices based on vertically aligned carbon nanotubes (memory elements, adhesive structures, nanoelectromechanical switches, emission structures, etc.).

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Section: A Technique For Determining the Piezoelectric Response Of Vesupporting

confidence: 89%

Section: A Technique For Determining the Piezoelectric Response Of Vementioning

confidence: 99%

Scanning Probe Techniques for Characterization of Vertically Aligned Carbon Nanotubes

Il’ina¹,

Il’in²,

Smirnov³

et al. 2019

Atomic-Force Microscopy and Its Applications

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show abstract

“…The above studies allowed us to conclude that a non-uniform strain of CNTs and, consequently, the violation of its cylindrical symmetry will lead to the appearance of flexoelectric and/or surface piezoelectric effects and the appearance of an internal electric field in the nanotubes [ 18 , 19 ]. Our study showed that the piezoelectric coefficient of the CNT is 0.107 ± 0.032 C/m 2 [ 19 ], which is comparable to the piezoelectric coefficient of the basic piezoelectric nanomaterials [ 2 ]. These results became the basis of our research and development of memristive structures using CNTs under a non-uniform strain [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Response of Multi-Walled Carbon Nanotubes

et al. 2018

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Recent studies in nanopiezotronics have indicated that strained graphene may exhibit abnormal flexoelectric and piezoelectric properties. Similar assumptions have been made with regard to the properties of carbon nanotubes (CNTs), however, this has not so far been confirmed. This paper presents the results of our experimental studies confirming the occurrence of a surface piezoelectric effect in multi-walled CNTs under a non-uniform strain. Using atomic force microscopy, we demonstrated the piezoelectric response of multi-walled CNTs under compression and bending. The current generated by deforming an individual CNT was shown to be −24 nA. The value of the surface potential at the top of the bundle of strained CNTs varied from 268 mV to −110 mV, depending on strain type and magnitude. We showed that the maximum values of the current and the surface potential can be achieved when longitudinal strain predominates in a CNT. However, increasing the bending strain of CNTs does not lead to a significant increase in current and surface potential, due to the mutual compensation of piezoelectric charges concentrated on the CNT side walls. The results of the study offer a number of opportunities and challenges for further fundamental research on the piezoelectric properties of carbon nanotubes as well as for the development of advanced CNT-based nanopiezotronic devices.

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“…The obtained results can be used in the development of technological processes for the creation of ultrafast energy-efficient electronic components based on carbon nanostructures, particularly nanoelectromechanical switches [43,44], flexo-and piezogenerators [45,46], gas sensors [47,48], and highly efficient autoelectronic emitters [49,50].…”

Section: Resultsmentioning

confidence: 96%

Vertically Aligned Carbon Nanotubes Production by PECVD

Il’in¹,

Il’ina²,

Rudyk³

et al. 2019

Perspective of Carbon Nanotubes

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This chapter presents the results of experimental studies of the PECVD technological mode parameters' influence on the formation of catalytic centers and carbon nanotubes' (CNTs') growth processes. This chapter also presents the ability to regulate the growth parameter for the controlled production of CNTs with the required geometric parameters, properties, and growth mechanisms. The results of experimental studies of the heating temperature and activation time effects on the catalytic center formation will be presented. This chapter also shows the effects of growth temperature, heating rate, and the activation time on the geometric and structural parameters of the carbon nanotubes. Experimental studies were carried out with the use of AFM, SEM, TEM, and EXAFS techniques. The results can be used in the development of technological processes for creating ultrafast energy-efficient electronic component base with carbon nanostructures, particularly nanoelectromechanical switches, flexoand piezoelectric generators, gas sensors, and high-performance emitters.

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Piezoelectric effect in non-uniform strained carbon nanotubes

Cited by 20 publications

References 9 publications

Scanning Probe Techniques for Characterization of Vertically Aligned Carbon Nanotubes

Scanning Probe Techniques for Characterization of Vertically Aligned Carbon Nanotubes

Piezoelectric Response of Multi-Walled Carbon Nanotubes

Vertically Aligned Carbon Nanotubes Production by PECVD

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