Effects of metal nanoparticles on the performance of PDMS based triboelectric nanogenerators

Anlin, Lazar K.; Vijoy, K.V.; Kannan, Pradeesh; Thomas, Shibi; John, Honey; Saji, K. J.

doi:10.1016/j.physb.2022.413952

Cited by 16 publications

(4 citation statements)

References 46 publications

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“…However, this causes the temperature to rise due to the energy being applied, and the PDMS hardens before LM particles can be fully pulverized, making it difficult to achieve the desired result. To address this issue, n-hexane was added to the solution during ultrasonication to reduce the viscosity of the PDMS and curing agent, facilitating the pulverization of the LM particles [ 19 ]. Ultrasonication alone was not sufficient due to the high viscosity of PDMS, which prevented the ultrasonic waves from reaching the LM particles.…”

Section: Resultsmentioning

confidence: 99%

Amplifying the Output of a Triboelectric Nanogenerator Using an Intermediary Layer of Gallium-Based Liquid Metal Particles

Kim

Seo

2023

Nanomaterials

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The production of energy has become a major issue in today’s world. Triboelectric nanogenerators (TENGs) are promising devices that can harvest mechanical energy and convert it into electrical energy. This study explored the use of Galinstan particles in the production of TENGs, which convert mechanical energy into electrical energy. During the curing process, the evaporation of the hexane solvent resulted in a film with varying concentrations of Galinstan particles. The addition of n-hexane during ultrasonication reduced the viscosity of the polydimethylsiloxane (PDMS) solution, allowing for the liquid metal (LM) particles to be physically pulverized into smaller pieces. The particle size distribution of the film with a Galinstan concentration of 23.08 wt.% was measured to be within a few micrometers through ultrasonic crushing. As the amount of LM particles in the PDMS film increased, the capacitance of the film also increased, with the LM/PDMS film with a 23.08% weight percentage exhibiting the highest capacitance value. TENGs were created using LM/PDMS films with different weight percentages and tested for open-circuit voltage, short-circuit current, and charge amount Q. The TENG with an LM/PDMS film with a 23.08% weight percentage had the highest relative permittivity, resulting in the greatest voltage, current, and charge amount. The use of Galinstan particles in PDMS films has potential applications in wearable devices, sensors, and biomedical fields.

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Section: Resultsmentioning

confidence: 99%

Amplifying the Output of a Triboelectric Nanogenerator Using an Intermediary Layer of Gallium-Based Liquid Metal Particles

Kim

Seo

2023

Nanomaterials

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“…Pattering metallic structures, commonly used in microelectronics, is greatly hindered due to the low adhesion and low surface energy of PDMS. Besides different attempts, including thin metallic layers deposition on PDMS surface 52 , 53 , coating with conductive polymer 54 , or adding metallic nanoparticles into PDMS volume 55 , the recent developments have been focused on electrically-tunable LC:PDMS waveguiding structures formed by the microchannels (embedded in PDMS slab bounded to the glass substrate) and filled with liquid crystalline and fluid conductive material, respectively. Such a configuration allows for complex electrodes to be realized and placed in the close vicinity of the waveguiding channel.…”

Section: Resultsmentioning

confidence: 99%

Periodic liquid crystalline waveguiding microstructures

Ertman,

Orzechowski,

Rutkowska

et al. 2023

Sci Rep

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Different methods allowing for creating optical waveguides with liquid–crystal (LC) cores, in which molecules form periodic patterns with precisely controlled periods, are reported. The first one is based on reversible photoalignment with high-resolution selective illumination and allows to control the period of LC molecules inside silica microcapillaries. The second method employs microstructures formed in PDMS, allowing to obtain both: LC-core waveguides and a set of specially designed periodic microelectrodes used for the periodic reorientation of molecules. Using both methods, we successfully controlled the period of the patterned alignment in the range from about 500 µm and scaled it down to as small as 20 µm. We performed experimental studies on waveguiding phenomenon in such structures, in view to obtain transmission spectra typical to optical fiber gratings. Since the results achieved in experimental conditions differed from those expected, the additional numerical simulations were performed to explain the observed effects. Finally, we obtained the waveguiding in a blue phase LC, characterized by naturally created three-dimensional periodicity with periods smaller than one micrometer. In such a structure, we were able to observe first-order bandgap, and moreover, we were able to tune it thermally in nearly the whole visible spectral range.

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“…Despite their ability to sustain the strain of up to 120 percentage, the electrical output performance of the crumpled graphene TENGs was remarkably established. Furthermore, the Chen group enhanced the crumpled graphene by surface doping with AuCl 3 [68][69][70]. Table 2 summarizes triboelectric materials' operating mode, composition, and device characteristics for TENGs that utilize graphene as a triboelectric material.…”

Section: Teng's Comparison Study Using Graphene Compositementioning

confidence: 99%

Computational fluid dynamics-based PDMS-graphene triboelectric nanogenerator ‘PG-TENG’ blue energy harvester

Memon,

Abro

2023

Eng. Res. Express

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Developing cost-effective and efficient energy harvesting technologies is critical with the rising demand for clean and sustainable energy. In this research paper we presents a CFD-based study on a PDMS-Graphene Triboelectric Nanogenerator (PG-TENG) for blue energy harvesting. Our study focuses on the vertical (contact-separation) mode of the PG-TENG and investigates the effect of TENG’s varying size on its electrical output performance. To optimize the properties and performance of the PG-TENG system, we used COMSOL Multiphysics for mathematical-modeling and simulations. The outcomes show that the varying size of the PG-TENG significantly impacts its electrical output capabilities, with larger PG-TENGs exhibiting higher current and voltage outputs. Moreover, we compared our outcomes to other studies on graphene-based TENGs and highlighted the advantages of our PG-TENG in terms of durability, performance, and mechanical stability. Our research contributes to the field of blue energy generation by providing insights into the design and optimization of PG-TENGs for low-cost, effective, and efficient energy harvester devices.

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Effects of metal nanoparticles on the performance of PDMS based triboelectric nanogenerators

Cited by 16 publications

References 46 publications

Amplifying the Output of a Triboelectric Nanogenerator Using an Intermediary Layer of Gallium-Based Liquid Metal Particles

Amplifying the Output of a Triboelectric Nanogenerator Using an Intermediary Layer of Gallium-Based Liquid Metal Particles

Periodic liquid crystalline waveguiding microstructures

Computational fluid dynamics-based PDMS-graphene triboelectric nanogenerator ‘PG-TENG’ blue energy harvester

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