Tribovoltaic effect: Fundamental working mechanism and emerging applications

Sriphan, Saichon; Vittayakorn, Naratip

doi:10.1016/j.mtnano.2023.100318

Cited by 6 publications

(2 citation statements)

References 102 publications

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“…6 To alleviate these issues, Wang's group proposed the tribovoltaic effect in 2018, which is akin to the photovoltaic effect and is governed by a built-in electric field or interfacial electric field induced electron-hole separation. [7][8][9] The effect-based tribovoltaic nanogenerator (TVNG) can continue to provide DC voltage and current as long as a metal/semiconductor continuously slides over another semiconductor. This TVNG boasts a simpler structure, higher current density, and lower matching impedance compared to other triboelectric DC generating strategies, such as the structures that depend on air-discharge, multiphase coupling, or a ternary dielectric.…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh voltage direct current quasi-tribovoltaic nanogenerator by switchable tribo-bias induction and deposited charge extraction

Zhang,

Ren,

et al. 2024

Energy Environ. Sci.

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Section: Introductionmentioning

confidence: 99%

Ultrahigh voltage direct current quasi-tribovoltaic nanogenerator by switchable tribo-bias induction and deposited charge extraction

Zhang,

Ren,

et al. 2024

Energy Environ. Sci.

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“…Furthermore, the intrinsic impedance of DC‐TENGs based on the tribovoltaic effect is usually ≈10 MΩ, much less than that of the alternating current TENGs. [ 11 ]…”

Section: Introductionmentioning

confidence: 99%

All‐Fabric Direct‐Current Triboelectric Nanogenerators Based on the Tribovoltaic Effect as Power Textiles

Cheng

Wei

et al. 2023

Advanced Energy Materials

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The tribovoltaic effect is the direct‐current (DC) output that results from sliding a p‐type semiconductor on top of an n‐type semiconductor, and it is caused by the electron–hole pairs generated However, the rigid structure of traditional semiconductor limits its potential application in wearable fields. Here, p–type and n–type fabric with semiconductor properties are prepared by doping small organic molecules of cetyltrimethylammonium bromide and sodium dodecylbenzene sulfonate on the carbon atoms of single–wall carbon nanotubes (SWCNTs), and three all‐fabric direct‐current triboelectric nanogenerators based on the tribovoltaic effect (AFDC‐TENG) are developed , which exhibit high flexibility, satisfactory comfort, and stable DC output. In addition, the effects of structural parameters and environmental factors on the electrical output of AFDC‐TENG are systematically discussed. The output voltage, current, and power density of p‐type AFDC‐TENG can reach 0.2 V, 0.29 µA, and 45.5 mV m−2 at a maximum speed of 0.2 m s−1 and a sliding frequency of 1 Hz, respectively. This work proposes a simple and scalable design form for all‐fabric DC power supply devices, which has potential applications in the future micro/nano energy or self‐powered flexible sensors.

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Highly Flexible Tribovoltaic Nanogenerator Based‐on P‐N Junction Interface: Comparative Study on Output Dependency Dominated by Photovoltaic Effect in Freestanding‐Mode

Sriphan,

Worathat,

Pharino

et al. 2023

Adv Funct Materials

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The emergence of tribovoltaic nanogenerators (TVNGs) paves the way for developing a new kind of semiconductor‐based energy harvester that overcomes the restriction of low output current in a conventional approach. The traditional TVNG generally depends on the frictional pair between two rigid semiconductors (or metal‐semiconductor), limiting the practicability of flexible and portable electronics. Recent developments require the fundamental understanding of charge generation in diverse operating modes and structures. Here, a flexible TVNG based on the p‐Cu2O/n‐g‐C3N4 interface is presented. Operating in a freestanding mode, the proposed TVNG can generate a stable signal in any optical conditions including UV illumination, dark, and ambient. Under UV illumination, the electrical outputs of the TVNG reach 0.43 V and 2.1 µA cm−2, which are significantly larger than those obtained from dark and ambient conditions. The results demonstrate the coupling effect of three phenomena: tribovoltaic, photovoltaic, and triboelectric effects, and the unique mechanism to the observed signal is proposed. Additionally, the TVNG shows the practical feasibility of energy harvesting with capacitor charging and charge‐boosting circuits. This study showcases the unique concept with potential for developing a novel flexible nanogenerator in many aspects, including material, structure, and fundamental mechanism.

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Tribovoltaic effect: Fundamental working mechanism and emerging applications

Cited by 6 publications

References 102 publications

Ultrahigh voltage direct current quasi-tribovoltaic nanogenerator by switchable tribo-bias induction and deposited charge extraction

Ultrahigh voltage direct current quasi-tribovoltaic nanogenerator by switchable tribo-bias induction and deposited charge extraction

All‐Fabric Direct‐Current Triboelectric Nanogenerators Based on the Tribovoltaic Effect as Power Textiles

Highly Flexible Tribovoltaic Nanogenerator Based‐on P‐N Junction Interface: Comparative Study on Output Dependency Dominated by Photovoltaic Effect in Freestanding‐Mode

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