Tunable Piezoresistivity of Nanographene Films for Strain Sensing

Zhao, Jing; Wang, Guole; Yang, Rong; Lu, Xiaobo; Cheng, Meng; He, Congli; Xie, Guobo; Meng, Junling; Shi, Dean; Zhang, Guangyu

doi:10.1021/nn506341u

Cited by 254 publications

(231 citation statements)

References 49 publications

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“…Recently, graphene based materials have been widely studied for sensing applications, e.g., in strain sensors,52, 141, 142, 143 temperature sensors,144 biosensors,145, 146, 147, 148 and gas sensors,72, 81, 149 as shown in Figure 19 . Nanographene films grown by PECVD have been transferred onto polydimethylsilxane (PDMS) with prestrain 51.…”

Section: Applications Of Graphene Grown By Pecvdmentioning

confidence: 99%

Controllable Synthesis of Graphene by Plasma‐Enhanced Chemical Vapor Deposition and Its Related Applications

et al. 2016

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Graphene and its derivatives hold a great promise for widespread applications such as field‐effect transistors, photovoltaic devices, supercapacitors, and sensors due to excellent properties as well as its atomically thin, transparent, and flexible structure. In order to realize the practical applications, graphene needs to be synthesized in a low‐cost, scalable, and controllable manner. Plasma‐enhanced chemical vapor deposition (PECVD) is a low‐temperature, controllable, and catalyst‐free synthesis method suitable for graphene growth and has recently received more attentions. This review summarizes recent advances in the PECVD growth of graphene on different substrates, discusses the growth mechanism and its related applications. Furthermore, the challenges and future development in this field are also discussed.

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Section: Applications Of Graphene Grown By Pecvdmentioning

confidence: 99%

Controllable Synthesis of Graphene by Plasma‐Enhanced Chemical Vapor Deposition and Its Related Applications

et al. 2016

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“…Based on the working mechanism, strain sensors can be divided into resistivetype [71,83,84], capacitive-type [85,86], and piezoelectrictype [87][88][89] sensors. For resistive-type strain sensors, the resistance of the sensors will change because of the structural deformation of the active materials induced by the applied strain, leading to the detection of strain.…”

Section: Flexible Strain Sensorsmentioning

confidence: 99%

“…The selection of flexible substrates and active materials is of great importance to achieve high-performance strain sensors. Generally, flexible polymers, such as polydimethylsiloxane (PDMS) [50,[90][91][92][93][94][95], ecoflex [28,96,97], polyurethane (PU) [98,99], polyethylene terephthalate (PET) [84,100,101], polyimide (PI) [102,103] and rubber [104,105], are commonly used as the substrates/matrix for the fabrication of sensors due to their excellent flexibility, good thermal and chemical stability. Active materials, such as CNTs [28,[106][107][108][109][110], graphene (including rGO) [83,84,90,100,[111][112][113], metal nanoparticles and nanowires [50,53], semiconductors [114,115], conductive polymers [46,48], and their hybrid structures [116,117], have been intensively investigated.…”

Section: Flexible Strain Sensorsmentioning

confidence: 99%

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Advanced carbon materials for flexible and wearable sensors

et al. 2017

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Flexible and wearable sensors have drawn extensive concern due to their wide potential applications in wearable electronics and intelligent robots. Flexible sensors with high sensitivity, good flexibility, and excellent stability are highly desirable for monitoring human biomedical signals, movements and the environment. The active materials and the device structures are the keys to achieve high performance. Carbon nanomaterials, including carbon nanotubes (CNTs), graphene, carbon black and carbon nanofibers, are one of the most commonly used active materials for the fabrication of high-performance flexible sensors due to their superior properties. Especially, CNTs and graphene can be assembled into various multi-scaled macroscopic structures, including one dimensional fibers, two dimensional films and three dimensional architectures, endowing the facile design of flexible sensors for wide practical applications. In addition, the hybrid structured carbon materials derived from natural bio-materials also showed a bright prospect for applications in flexible sensors. This review provides a comprehensive presentation of flexible and wearable sensors based on the above various carbon materials. Following a brief introduction of flexible sensors and carbon materials, the fundamentals of typical flexible sensors, such as strain sensors, pressure sensors, temperature sensors and humidity sensors, are presented. Then, the latest progress of flexible sensors based on carbon materials, including the fabrication processes, performance and applications, are summarized. Finally, the remaining major challenges of carbon-based flexible electronics are discussed and the future research directions are proposed. [56,57], have been used as the active components for the fabrication of flexible sensors. Among these materials, metal NPs can be used to fabricate flexible sensors with high sensitivity, but the sensing range and stretchability of these sensors are limited [58]. Besides, due to the limited chemical stability and reproducibility of metal nanowires, it is challenging to fabricate stable sensors using metal nanowires [10]. Similarly, conductive polymers with poor stability and conductivity are also difficult to be used for the fabrication of high-performance sensors [59]. In contrast, carbon materials are one of the most commonly investigated materials, especially CNTs and graphene (including graphene oxide (GO) and reduced graphene oxide (rGO)), due to their remarkable mechanical, electrical and thermal properties. To implement macroscopic applications, CNTs and graphene with superior properties in microscopic level should be converted into macroscopic functional assemblies, such as one dimensional (1D) fibers or yarns [60,61], two dimensional (2D) films or sheets [62,63], three dimensional (3D) architectures [64][65][66] (Fig. 1). The multi-scaled macroscopic carbon nanomaterials endow the flexible sensors with high sensitivity, excellent flexibility and good stability as well as desired configurations. Also, lo...

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“…通常实现压阻传感器高灵敏性, 需要以高电阻为代价. 最近, 张广宇等 [14] 开发了一种纳米石墨烯的压阻薄膜, 灵敏度提高的同时, 降低了功耗. 为了实现差异化的电阻响应, 我们 [15] 首次采用硅柱诱导的印刷方法简便组装了振幅和周期可调的微米级曲线阵列压阻传感器.…”

Section: 压阻unclassified