Electrical charge storage effect in carbon based polymer composite for long-term performance enhancement of the triboelectric nanogenerator

Choi, Jun Hyuk; Ra, Yoonsang; Cho, Sumin; La, Moonwoo; Park, Sung Jea; Choi, Dongwhi

doi:10.1016/j.compscitech.2021.108680

Cited by 59 publications

(40 citation statements)

References 73 publications

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“…MXene layer increases the dielectric constant as well as increases the ultrahigh output power density and decreases the matching resistance. [41][42][43] The MXene layer on the fabric gathers further negative charges. These results were verified by surface potential measurements.…”

Section: Introductionmentioning

confidence: 99%

Fabric‐Assisted MXene/Silicone Nanocomposite‐Based Triboelectric Nanogenerators for Self‐Powered Sensors and Wearable Electronics

Salauddin

Rana

Rahman

et al. 2021

Adv Funct Materials

116

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Surface modification of triboelectric negative layers is an essential factor for boosting the output performance of triboelectric nanogenerators (TENGs). Herein, a novel scalable surface modification method is introduced using a fabric‐assisted micropatterning technique on a highly negative MXene/silicone nanocomposite surface (charge generating) with MXene layer (charge trapping) for self‐powered sensors and wearable electronics. The microstructured surface is fabricated directly from a fabric template requiring no surface‐active agent, high‐pressure equipment, or high vacuum. To boost the proposed double‐side‐contact TENG (DSC‐TENG) output performance, different parameters of the fabric textures are tested and optimized for the roughened microstructures, namely the MXene layer and relative humidity. Under optimal conditions, the fabricated DSC‐TENG improves the voltage and peak current density by factors of 9.8 and 20, respectively, regarding flat silicone. It exhibits a maximum peak power density of 55.47 W m−2 at load resistance of 0.18 MΩ, and a corresponding decrease in resistance by 75% using MXene content of 3 mg cm−2. Also, DSC‐TENG‐based smart home control of electrical appliances, theft protection, self‐powered electronic devices, password authentication, and human motion monitoring via smartphone for the IoT are demonstrated. The proposed method can be implemented for different types of polymers, thereby enabling the large‐scale fabrication of high‐performance TENGs in industrial applications.

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Section: Introductionmentioning

confidence: 99%

Fabric‐Assisted MXene/Silicone Nanocomposite‐Based Triboelectric Nanogenerators for Self‐Powered Sensors and Wearable Electronics

Salauddin

Rana

Rahman

et al. 2021

Adv Funct Materials

116

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show abstract

“…Carbon black is usually composited with another material to form a triboelectric film. The presence of carbon black can change the permittivity 143 and the work function 61 of the composited film. When composited with PDMS, the charge storage characteristics of a TENG can be improved because the composite can store dynamically inserted negative charges.…”

Section: Inorganic Nanomaterials Used In Tengsmentioning

confidence: 99%

Advances in Inorganic Nanomaterials for Triboelectric Nanogenerators

Zhang

Olin

2021

ACS Nanosci. Au

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Triboelectric nanogenerators (TENGs) that utilize triboelectrification and electrostatic induction to convert mechanical energy to electricity have attracted increasing interest in the last 10 years. As a universal physical phenomenon, triboelectrification can occur between any two surfaces that experience physical contact and separation regardless of the type of material. For this reason, many materials, including both organic and inorganic materials, have been studied in TENGs with different purposes. Although organic polymers are mainly used as triboelectric materials in TENGs, the application of inorganic nanomaterials has also been intensively studied because of their unique dielectric, electric, piezoelectric, and optical properties, which can improve the performance of TENGs. A review of how inorganic nanomaterials are used in TENGs would help researchers gain an overview of the progress in this area. Here, we present a review to summarize how inorganic nanomaterials are utilized in TENGs based on the roles, types, and characteristics of the nanomaterials.

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“…Therefore, in the design of high-performance TENGs, it is critical to transport the charge on the surface to a deep position while reducing charge recombination. [42][43][44][45][46] HVCI was used to significantly improve the output performances of both positive and negative tribo-materials, and mesoporous carbon spheres (mCSs) were arranged gradually in multilayers according to their external surface areas through electrospinning to form a gradient charge-confinement layer. The method of controlling charge transfer through a gradient arrangement is a widely known method in the study of electronic devices including OLED (organic light emitting diode).…”

Section: Introductionmentioning

confidence: 99%

Controllable Triboelectric Series Using Gradient Positive and Negative Charge‐Confinement Layer with Different Particle Sizes of Mesoporous Carbon Materials

et al. 2022

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As a method to maximize the energy efficiency of triboelectric nanogenerators (TENGs), high‐voltage charge injection (HVCI) on the surface is a simple and effective method for increasing surface charge densities. In this study, positive and negative triboelectric series are controlled using a 3‐layer gradient charge‐confinement wherein the particle sizes of the mesoporous carbon spheres (mCSs) are sequentially arranged depending on the external surface area of the mCSs. In the gradient charge‐confinement layers of this study, the mCS with different sizes perform charge transport from the surface to a deep position during HVCI while mitigating the charge loss through charge confinement to induce the high space charge densities. Through this process, the output voltage—which is initially 15.2 V—is measured to be 600 V after HVCI, thus representing an increase of about 40 times. Further, to amplify the low output current, which is a disadvantage of triboelectric energy, two types of electrical energy—triboelectric and electromagnetic energy—are produced in single mechanical motion. As a result, the output current produced by the cylindrical TENG and electromagnetic generator is recorded as being 1300 times higher, increasing from 12.8 µA to 17.5 mA.

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Electrical charge storage effect in carbon based polymer composite for long-term performance enhancement of the triboelectric nanogenerator

Cited by 59 publications

References 73 publications

Fabric‐Assisted MXene/Silicone Nanocomposite‐Based Triboelectric Nanogenerators for Self‐Powered Sensors and Wearable Electronics

Fabric‐Assisted MXene/Silicone Nanocomposite‐Based Triboelectric Nanogenerators for Self‐Powered Sensors and Wearable Electronics

Advances in Inorganic Nanomaterials for Triboelectric Nanogenerators

Controllable Triboelectric Series Using Gradient Positive and Negative Charge‐Confinement Layer with Different Particle Sizes of Mesoporous Carbon Materials

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