Investigating the effect of nanoscale triboelectrification on nanofriction in insulators

Shi, Bin; Xi, Gan; Zhang, Chi; Lang, Haojie; Zou, Kun; Bu, Tianzhao; Peng, Yitian

doi:10.1016/j.nanoen.2021.106620

Cited by 11 publications

(9 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As contact electrification can be affected by mechanical conditions [ 38 , 39 ], Figure 1(c) shows the Δ CPD of PVDF-TrFE sample under different contact forces (directly proportional to the deflection setpoint, detail calculation shown in experimental section). It can be seen that the sample was negatively charged during contact electrification, indicating the electron transfer from tip to sample due to the electron transfer dominated mechanism in the metal/dielectric pairs [ 40 – 43 ].…”

Section: Resultsmentioning

confidence: 99%

Dielectric Manipulated Charge Dynamics in Contact Electrification

et al. 2022

View full text Add to dashboard Cite

Surface charge density has been demonstrated to be significantly impacted by the dielectric properties of tribomaterials. However, the ambiguous physical mechanism of dielectric manipulated charge behavior still restricts the construction of high-performance tribomaterials. Here, using the atomic force microscopy and Kelvin probe force microscopy, an in situ method was conducted to investigate the contact electrification and charge dynamics on a typical tribomaterial (i.e., BaTiO3/PVDF-TrFE nanocomposite) at nanoscale. Combined with the characterization of triboelectric device at macroscale, it is found that the number of transferred electrons increases with contact force/area and tends to reach saturation under increased friction cycles. The incorporated high permittivity BaTiO3 nanoparticles enhance the capacitance and electron trapping capability of the nanocomposites, efficiently inhibiting the lateral diffusion of electrons and improving the output performance of the triboelectric devices. Exponential decay of the surface potential is observed over monitoring time for all dielectric samples. At high BaTiO3 loadings, more electrons can drift into the bulk and combine with the induced charges on the back electrode, forming a large leakage current and accordingly accelerating the electron dissipation. Hence, the charge trapping/storing and dissipating, as well as the charge attracting properties, should be comprehensively considered in the design of high-performance tribomaterials.

show abstract

Section: Resultsmentioning

confidence: 99%

Dielectric Manipulated Charge Dynamics in Contact Electrification

et al. 2022

View full text Add to dashboard Cite

show abstract

“…To further decipher the different contributions, the following section will contain a summary of models used to describe frictional losses due to excitation of phonons and interactions linked to the interactions with the electron system, which are generally assumed to be the dominant dissipation channels. [1,2,[14][15][16][17][18][19][20][21][22][23][24] F F = F ph + F el (2.26)…”

Section: Dissipation Mechanismsmentioning

confidence: 99%

“…[86] Experimental studies have shown that this effect can have a large influence on the friction measured, as well as possibly on the friction coefficient. [18,19] The effect is particularly pronounced for materials that are well separated, regarding their triboelectric properties. [87]…”

Section: Electronic Contributionsmentioning

confidence: 99%

“…Results from the first funding period of the CRC 1073 [1,[11][12][13] and from other research groups [14][15][16][17][18][19][20][21][22][23][24] indicate that dry friction can be attributed to either the phononic and electronic degrees of freedom of the surrounding material, the former of which seem to be especially relevant in the case of manganite thin films. These contributions are therefore examined more thoroughly in the context of this thesis by means of atomic force microscope (AFM)-based experiments.…”

Section: Introductionmentioning

confidence: 99%

“…The emergence of atomic force microscopy (AFM) in the 1980s [118] facilitated the study of friction at the single nanoasperity level. [1,2,[14][15][16][17]19,85,145,[175][176][177][178] In the case of nanoscale low-wear, dry sliding friction, two mechanisms have been predominantly discussed: 1. frictional losses due to phonon excitation by mechanical interactions between the tip and surface, and 2. dissipative interactions linked to the electron system. To unravel the different contributions to sliding friction, several literature studies have so far systematically varied temperature, [2,14,16,17] contact pressure [85] or bias voltages [1,15,19,145] to alter the electronic and electrostatic interactions between the tip and the samples.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nanoscale Friction Measurements on Manganite Thin Films: Which Material Properties are Important?

Weber¹

View full text Add to dashboard Cite

Navigating the Landscape of Dry Assembling Ordered Particle Structures: Can Solvents Become Obsolete?

Sotthewes,

Jimidar

2024

Small

View full text Add to dashboard Cite

A spur on miniaturized devices led scientists to unravel the fundamental aspects of micro‐ and nanoparticle assembly to engineer large structures. Primarily, attention is given to wet assembly methods, whereas assembly approaches in which solvents are avoided are scarce. The “dry assembly” strategies can overcome the intrinsic disadvantages that are associated with wet assembly, e.g., the lack of versatility and scalability. This review uniquely summarizes the recent progress made to create highly ordered particle arrays without using a wet environment. Before delving into these methods, the surface interactions (e.g., van der Waals, contact mechanics, capillary, and electrostatics) are elaborated, as a profound understanding and balancing these are a critical aspect of dry assembly. To manipulate these interactions, strategies involving different forces, e.g., mechanical‐based, electrical‐based, or laser‐induced, sometimes in conjunction with pre‐templated substrates, are employed to attain ordered colloidal structures. The utilization of the ordered structures obtained without solvents is accompanied by specific examples. Dry assembly methods can aid us in achieving more sustainable assembly processes. Overall, this Review aims to provide an easily accessible resource and inspire researchers, including novices, to broaden dry assembly horizons significantly and close the remaining knowledge gap in the physical phenomena involved in this area.

show abstract

Investigating the effect of nanoscale triboelectrification on nanofriction in insulators

Cited by 11 publications

References 46 publications

Dielectric Manipulated Charge Dynamics in Contact Electrification

Dielectric Manipulated Charge Dynamics in Contact Electrification

Nanoscale Friction Measurements on Manganite Thin Films: Which Material Properties are Important?

Navigating the Landscape of Dry Assembling Ordered Particle Structures: Can Solvents Become Obsolete?

Contact Info

Product

Resources

About