Tribological Properties and Electrification Performance of Patterned Surface for Sliding-Mode Triboelectric Nanogenerator

Hu, Yanqiang; Wang, Xiaoli; Li, Hanqing; Li, Zhihao; Sun, Na

doi:10.1021/acs.langmuir.9b01020

Cited by 23 publications

(9 citation statements)

References 28 publications

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“…Introducing single-sided surface textures with different shapes and sizes into the dielectric layer is an effective method to regulate the output of CS-TENG [22][23][24]. Fan et al [22] fabricated groove, cube and pyramid textures respectively on the surface of dielectric layer through photolithography, etching and replication, and found that the change of texture shape can significantly regulate the contact area and thus the open-circuit voltage of CS-TENG, with the voltage variation reached about 136.8%.…”

Section: Introductionmentioning

confidence: 99%

Regulating the electrical performance of contact-separation mode triboelectric nanogenerators based on double-sided groove textures

Yang,

Sun

et al. 2024

J. Micromech. Microeng.

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The contact-separation mode triboelectric nanogenerators (CS-TENG) is a kind of micro/nano electromechanical power system based on the contact electrification and electrostatic induction. With the expansion of application field of the CS-TENG, regulating the electrical performance becomes essential. In this paper, simple and effective methods for the CS-TENG output regulation based on the double-sided groove textures are proposed. To do this, groove textures on both Cu contact electrode and PDMS dielectric layer are fabricated, and influences and mechanisms of the alignment angle (the angle between the direction of groove textures on the Cu electrode and that on the PDMS dielectric layer), matching condition (textures sidewall contact and non-contact) and applied pressure on the CS-TENG output are explored through output tests, contact and electrostatic simulations. It is shown that altering the alignment angle, matching condition and applied pressure of groove texture on the Cu contact electrode and PDMS dielectric layer, could simply regulate the output of CS-TENG, where changing the alignment angle is the most effective. Under low and high applied pressures, the variations of the output voltage with alignment angle from 0˚-90˚ reach to 343.8% and 297.2%, respectively, and CS-TENG at 0˚ angle outputs the maximum voltage under both pressures, while the minimum voltages under the two pressures are exhibited from different angles. The change of contact area induced by the longitudinal deformation and transverse expansion of the groove textures is the main reason for the output regulations.

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Section: Introductionmentioning

confidence: 99%

Regulating the electrical performance of contact-separation mode triboelectric nanogenerators based on double-sided groove textures

Yang,

Sun

et al. 2024

J. Micromech. Microeng.

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“…built a platform to study the effects of the pillar pitch on the tribological and electrical performance of patterned surfaces for the sliding‐mode TENG, where the pillar arrays were fabricated via lithography, deep reactive ion etching, and replication techniques. [ 27 ] Moreover, Hu et al. carried out experiments at different humidity conditions to reveal the effect of hydrophobic surface on the durability as well as the stability of output for sliding‐mode TENG.…”

Section: Introductionmentioning

confidence: 99%

“…[26] Hu et al built a platform to study the effects of the pillar pitch on the tribological and electrical performance of patterned surfaces for the sliding-mode TENG, where the pillar arrays were fabricated via lithography, deep reactive ion etching, and replication techniques. [27] Moreover, Hu et al carried out experiments…”

mentioning

confidence: 99%

Mechano‐Triboelectric Transduction of Sliding‐Mode Nanogenerators with Magnetic Pre‐Stress

Zhang

Fan

Chen

et al. 2023

Adv Funct Materials

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Studies on the enhancement of output performance are widely presented based on the theory of output characteristics for sliding‐mode triboelectric nanogenerators (TENGs). However, few studies are reported to investigate the electromechanical coupling of the external force onto the S‐TENG due to its fuzzy influence on electrical performance. In order to study the effect of the pre‐stress on S‐TENGs, in this work, a novel strategy of adding flexible magnet layers in the S‐TENG is first proposed to study the electrification and coupling effect induced by magnetic pre‐stress (or magnetically stresses triboelectric nanogenerator, MS‐TENG) both theoretically and experimentally. The electromechanical characteristic of the MS‐TENG is theoretically studied by introducing the magnetic pre‐stress coefficient. Considering the effect of the magnetic pre‐stress, load resistances, and sliding frequency on MS‐TENG at a low sliding speed, the relevant output performance of the MS‐TENG is derived through the equivalent circuit model. Furthermore, the corresponding experiments are conducted and the experimental results present a good agreement with the theoretical calculations, which effectively reveal the principle of the magnetic pre‐stress on the MS‐TENG. This work is aimed at providing a theoretical description with validations on the effect of external pre‐stresses on the performance enhancement of S‐TENGs.

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“…Although triboelectrification can have unwanted impacts in applications [1], it can be beneficial for some realms, where the triboelectric nanogenerator (TENG) has been proposed as a representative in energy harvesting and self-powering sensing [2,3]. Herein, the sliding TENG [4] is a research area of intense focus because (1) the sliding is probably the most thoroughly studied friction mode in the field of tribology [5], and (2) the sliding TENG has presented good frictional electrification performance [6]. It is therefore of utmost importance to understand the intrinsic mechanism of frictional electrification that occurs.…”

Section: Introductionmentioning

confidence: 99%

Stratified topography theory to understand frictional electrification for sliding triboelectric nanogenerators

Han

Huang

et al. 2023

Surf. Topogr.: Metrol. Prop.

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Researchers are used to investigating the influence of surface topography on the frictional electrification of sliding triboelectric nanogenerators TENGs from the perspective of a single-stratum topography; however, a stratified feature has shared reality in closer relationships. Here, we characterize the stratified feature of the topographies for the sliding TENGs, and link them to the electrification voltages, finding that the frictional electrification strongly depends on the characteristics of the small-scale component in a stratified topography, which suggest us to develop a stratified electrification model for mechanism reveal. Based on the dependence, we also succeed in identifying the stratified topographic characteristics with frictional electrification signals by machine learning including support vector machine and convolutional neural network, which can be envisioned as a tool for topography measurement. This is the first demonstration of a stratified topography theory for sliding TENGs, providing new insights into the mechanism reveal and functional application of frictional electrification.

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Tribological Properties and Electrification Performance of Patterned Surface for Sliding-Mode Triboelectric Nanogenerator

Cited by 23 publications

References 28 publications

Regulating the electrical performance of contact-separation mode triboelectric nanogenerators based on double-sided groove textures

Regulating the electrical performance of contact-separation mode triboelectric nanogenerators based on double-sided groove textures

Mechano‐Triboelectric Transduction of Sliding‐Mode Nanogenerators with Magnetic Pre‐Stress

Stratified topography theory to understand frictional electrification for sliding triboelectric nanogenerators

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