From Dual-Mode Triboelectric Nanogenerator to Smart Tactile Sensor: A Multiplexing Design

Li, Tao; Zou, Jingdian; Xing, Fei; Zhang, Meng; Cao, Xia; Wang, Ning; Wang, Zhong Lin

doi:10.1021/acsnano.7b00396

Cited by 147 publications

(93 citation statements)

References 34 publications

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“…Note that the TTEFBS with twelve petals has the highest sensitivity which is caused by the largest contact area. Relying on the novel working principle and the unusual timbo‐like structure allows the TTEFBS with twelve petals to distinguish itself in terms of sensitivity together with linear range of force (5.20 V N −1 in a range of 0.1–3 N and 0.36 V N −1 in a range of 4–47.5 N), compared with that of a triboelectric tactile sensor (0.028 V N −1 in a range 40–140 N) or a force sensor based on capacitive (8.28, 4.53, and 2.97 N −1 in unites of relative capacitance, in ranges of 0.032–0.13, 0.13–0.26, and 0.26–0.64 N, respectively) . Furthermore, we tested the electrical outputs under various bending angles.…”

Section: Resultsmentioning

confidence: 99%

Flexible Timbo‐Like Triboelectric Nanogenerator as Self‐Powered Force and Bend Sensor for Wireless and Distributed Landslide Monitoring

Lin

Xiao

et al. 2018

Adv Materials Technologies

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As worldwide landslides frequently result in enormous casualties and huge economic losses, new landslide monitoring technologies are urgently required to develop for preventing and mitigating landslide hazard. In this paper, a self‐powered, flexible, timbo‐like triboelectric force and bend sensor (TTEFBS) is proposed and implemented, with the aim of effectively monitoring landslides. The fabricated TTEFBS, based on a single‐electrode working mode, consists of a timbo‐like inner polydimethylsiloxane (PDMS) core coated with a carbon electrode and an outer silicon rubber tube. Owing to the novel structure and sensing mechanism, the TTEFBS achieves high sensitivities (5.20 V N−1 under pressing and 1.61 V rad−1 under bending), fast response/relaxation time (<6 ms), and long‐term stability/reliability (more than 40 000 cycles). Furthermore, a wireless and distributed monitoring system using an array of TTEFBSs is developed for systematically detecting rockfalls, deep‐seated landslides, and superficial landslides. Additionally, a zigzag‐structured triboelectric nanogenerator (Z‐TENG), characterized by an open‐circuit voltage of ≈2058 V and a short‐circuit current of ≈154 µA, is successfully fabricated for scavenging energy from moving cars to provide power in wild environments, thereby forming a self‐powered monitoring system. This work may further inspire rapid progress of TENG in applications of wireless, distributed sensing, and environmental/infrastructure monitoring.

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Section: Resultsmentioning

confidence: 99%

Flexible Timbo‐Like Triboelectric Nanogenerator as Self‐Powered Force and Bend Sensor for Wireless and Distributed Landslide Monitoring

Lin

Xiao

et al. 2018

Adv Materials Technologies

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“…The deformation of the sensing module under contact pressure produces variations of LED light reflected by the taxels and consequently, the photocurrents that can be measured and used to determine the mechanical stimuli. Li et al [124] developed a flexible thin tactile sensor based on the dualmode Triboelectric nano-generators (TENGs). Unlike the sensor by Cirillo et al [43], this sensor is self-powered and can not only detect tiny pressure/force but also distinguish the hardness of the contact material by quantifying the shape change at the current peak.…”

Section: Contact-based Sensingmentioning

confidence: 99%

“…Shapes of current peak for different contact materials by tactile sensor based on dual-mode Triboelectric nano-generators (TENGs)[124].…”

mentioning

confidence: 99%

Symbiotic human-robot collaborative assembly

et al. 2019

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In human-robot collaborative assembly, robots are often required to dynamically change their pre-planned tasks to collaborate with human operators in a shared workspace. However, the robots used today are controlled by pre-generated rigid codes that cannot support effective human-robot collaboration. In response to this need, multi-modal yet symbiotic communication and control methods have been a focus in recent years. These methods include voice processing, gesture recognition, haptic interaction, and brainwave perception. Deep learning is used for classification, recognition and context awareness identification. Within this context, this keynote provides an overview of symbiotic human-robot collaborative assembly and highlights future research directions.

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“…Recently, tribotronic transistors have also become a research hotspot, in which the frictional electrostatic potential is utilized as a gate signal to regulate the characteristics of the electrical transmission and conversion in semiconductors. TENGs could convert a pressure signal into electricity without applying extra power . The triboelectric potential induced by the coupling effect between contact electrification and electrostatic induction could work as a gate voltage, leading to pressure‐dependent tribotronic transistors.…”

Section: Tactile Sensor Arrays Based On the Transistor Matrixmentioning

confidence: 99%

Recent Advances in Large‐Scale Tactile Sensor Arrays Based on a Transistor Matrix

Huo

Peng

Zhang

et al. 2018

Adv Materials Inter

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sensors has become a cross-disciplinary field that integrates a wide range of expertise in electronics, physics, materials science, chemistry, and biology. [2] At the same time, significant breakthroughs in flexible electronics, nanotechnology, and manufacturing have enabled the construction of tactile sensors with superior performance based on different transduction methods, including piezoresistivity, [3] capacitance, [4] and piezoelectricity. [5] More specifically, large-scale skin-like tactile sensors that detect pressure, temperature, or other stimuli in the surroundings have attracted increasing attention for applications in human-machine interfaces, [6] intelligent robots, [7] artificial limbs, [8] and other intelligent systems. [9] However, certain challenges remain in large-scale tactile simulation with fast data transmission and low signal crosstalk among the pixels.The tactile sensor arrays based on a transistor matrix (TSATM) have thus been developed for large-scale 2D tactile profiles. [10] The field effect transistor (FET) is one of the most important components in every electronic device, and it has three lead-out electrodes, the source, drain, and gate electrodes. It can control the flow of electrons through a planar channel when the applied gate voltage exceeds a certain threshold. In this way, small changes in the input voltage can excite the transition between high and low output currents. Thus, the FET operates as a control device and amplifier in a logic circuit. [11] A transistor active matrix is necessary to be employed in a largescale tactile sensor, where the addressing mode is similar to the memory structure, with word lines and bit lines. Large-scale tactile mapping can be easily achieved by monitoring the drain/ source current of each pixel. At the same time, the one-way current-passing characteristics of the transistor make it possible to reduce the crosstalk among the pixels. Recently, various types of TSATMs with outstanding performance based on an integrated composite structure or intrinsic pressure sensitive transistor were consecutively demonstrated for a variety of actual applications, as shown in Figure 1.This review focuses on the introduction of advanced TSATMs. The main content includes the following aspects: i) various types of TSATMs with an integrated composite structure that consists of a transistor matrix and a pressuredependent electronic component, and the development of the Tactile sensors that possess the physical properties of human epidermis, which can sense external stimuli (pressure, temperature, humidity, etc.), are a very popular cutting-edge innovation. They make a large contribution to extensive applications in the real-time monitoring of human health, artificial intelligence, robot systems, and biocompatibility. However, great challenges remain in large-scale tactile simulation to attain fast data transmission and low signal crosstalk among the pixels. The tactile sensor arrays based on a transistor matrix (TSATMs) are thus investigated for large-sc...

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From Dual-Mode Triboelectric Nanogenerator to Smart Tactile Sensor: A Multiplexing Design

Cited by 147 publications

References 34 publications

Flexible Timbo‐Like Triboelectric Nanogenerator as Self‐Powered Force and Bend Sensor for Wireless and Distributed Landslide Monitoring

Flexible Timbo‐Like Triboelectric Nanogenerator as Self‐Powered Force and Bend Sensor for Wireless and Distributed Landslide Monitoring

Symbiotic human-robot collaborative assembly

Recent Advances in Large‐Scale Tactile Sensor Arrays Based on a Transistor Matrix

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