High strain sensitivity controlled by the surface density of platinum nanoparticles

Tanner, J.; Mousadakos, D.; Giannakopoulos, K.; Skotadis, Evangelos; Tsoukalas, D.

doi:10.1088/0957-4484/23/28/285501

Cited by 60 publications

(69 citation statements)

References 29 publications

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“…At a strain of 0.5%, a sensitivity DR=R e of 70 is reached which is comparable to that of the NP-based strain gauges elaborated from colloidal solutions. 13,14,17,19,20 As previously suggested in the literature, [13][14][15][16][17][18][19][20] the exponential increase of DR/R with tensile strain e which is observed in Fig. 3(b) is consistent with the exponential dependence of tunnelling resistance on the interparticle separation distance.…”

supporting

confidence: 89%

“…1 For the last ten years, the research on piezoresistive transducers has mainly been focused on the use of nanomaterials to optimize sensitivity, power consumption, and sensor miniaturization. For instance, Si nanowires, [2][3][4] carbon nanotubes, [5][6][7] graphene, [8][9][10] MoS 2 , 10 SiC nanoribbons, 11 Ag nanowires, 12 and metallic nanoparticle (NP) assemblies [13][14][15][16][17][18][19][20] have been exploited at the laboratory scale to achieve very large gauge factors (GFs) which rival the state-of-the-art bulk Si gauges. Although the use of nanomaterials has attracted a lot of attention in the literature these past few years, many technological obstacles (manipulation of individual nanostructures, complexity of the process, sensor reproducibility, etc.)…”

mentioning

confidence: 99%

“…According to the literature, the high sensitivity of metallic NP strain gauges is attributed to the modulation, with respect to the strain, of electron tunnelling events between neighbouring NPs. [13][14][15][16][17][18][19][20] These metallic NP strain sensors are usually elaborated from colloidal solutions which are transferred to a variety of substrates by inkjet printing, airbrush spraying, layer-by-layer deposition, centrifugal method, or convective self-assembly. [13][14][15][16][18][19][20] However, such processes are unconventional for the silicon industry, and therefore, they cannot address traditional MEMS applications.…”

mentioning

confidence: 99%

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Metallic nanoparticle-based strain sensors elaborated by atomic layer deposition

Puyoo

Malhaire

Thomas

et al. 2017

Applied Physics Letters

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supporting

confidence: 89%

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confidence: 99%

mentioning

confidence: 99%

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Metallic nanoparticle-based strain sensors elaborated by atomic layer deposition

Puyoo

Malhaire

Thomas

et al. 2017

Applied Physics Letters

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“…Despite their excellent features, conventional strain sensors, such as semiconductor and metallic strain gauges, show some limitations considering measurement range, low sensitivity, difficulties to be embedded in material structures, low fatigue life and sensitivity to environment conditions and influencing effects. These limitations have increased the demands for using novel smart materials, e.g., doped silicon [1], nanoparticles [2–4], nanowires [5,6], graphene [7–9] and carbon nanotubes (CNTs) [10–14]. Among these novel sensitive materials, CNTs have become one of the most promising materials since their discovery by Iijima in 1991 [15] and they have attracted a great interest in a wide range of fields because of their exceptional mechanical, electrical, thermal and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Flexible Carbon Nanotube Films for High Performance Strain Sensors

Kanoun

Müller

Benchirouf

et al. 2014

Sensors

266

138

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Compared with traditional conductive fillers, carbon nanotubes (CNTs) have unique advantages, i.e., excellent mechanical properties, high electrical conductivity and thermal stability. Nanocomposites as piezoresistive films provide an interesting approach for the realization of large area strain sensors with high sensitivity and low manufacturing costs. A polymer-based nanocomposite with carbon nanomaterials as conductive filler can be deposited on a flexible substrate of choice and this leads to mechanically flexible layers. Such sensors allow the strain measurement for both integral measurement on a certain surface and local measurement at a certain position depending on the sensor geometry. Strain sensors based on carbon nanostructures can overcome several limitations of conventional strain sensors, e.g., sensitivity, adjustable measurement range and integral measurement on big surfaces. The novel technology allows realizing strain sensors which can be easily integrated even as buried layers in material systems. In this review paper, we discuss the dependence of strain sensitivity on different experimental parameters such as composition of the carbon nanomaterial/polymer layer, type of polymer, fabrication process and processing parameters. The insights about the relationship between film parameters and electromechanical properties can be used to improve the design and fabrication of CNT strain sensors.

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“…In this scenario, aggregates remain unstrained while most of the deformation occurs between them. As a result, equation 3.28 can be modified in such way that corresponds to average cluster diameter [29,75]. Resistance of Au-NP film is highly dependent on gaps between nanoparticles.…”

Section: Strain Sensor Fabricationmentioning

confidence: 99%

Laser synthesized gold nanoparticles for high sensitive strain gauges

Burzhuev

Dâna

Ortaç

2013

Sensors and Actuators A: Physical

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Recently, the conduction properties of nanoparticle films have received great deal of attention due to their unique properties attributed to quantum tunneling effect.Quantum tunneling effect, highly dependent on quantum barrier height and width, is very attractive for sensor applications. Resistive strain gauges based on gold nanoparticle (Au-NP) films show high strain sensitivity. These strain gauges are applicable for miniature applications because of its size. In addition, this nanoparticle films could be also used for various applications such as pressure and vapor sensors.Clean surfaces of laser generated Au-NPs provide high tunneling decay constant.Therefore, these films are promising for high sensitive sensor applications. In our study, the Au-NPs were directly synthesized in deionized water by nanosecond laser ablation method. The clean surface, size and aggregate clusters of Au-NPs offer advantages for high sensitivity strain sensor. We prepared Au-NPs films on flexible PDMS substrate by using hands-on drop-cast method. To obtain high gauge factor, we also investigated the nanoparticle concentration on the thin films. Laser-generated AuNPs films demonstrated gauge factor of ∼300 for higher than 0.22% strain and ∼80 for the strain lower than 0.22%, which is favorably comparable to reported sensitivities for strain sensors based on Au-NPs. Mechanical characterizations for the prolonged working durations suggest long term stability of these strain sensors. We discuss several models describing conductance of Au-NP films in low and high strain regimes.To the best of our knowledge, the conduction of laser generated Au-NP films has not been studied up to date, and it is the first study that shows high strain sensitivity of these films. Au-NP films may be promising for sensor applications.

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High strain sensitivity controlled by the surface density of platinum nanoparticles

Cited by 60 publications

References 29 publications

Metallic nanoparticle-based strain sensors elaborated by atomic layer deposition

Metallic nanoparticle-based strain sensors elaborated by atomic layer deposition

Flexible Carbon Nanotube Films for High Performance Strain Sensors

Laser synthesized gold nanoparticles for high sensitive strain gauges

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