Three-dimensional conformal graphene microstructure for flexible and highly sensitive electronic skin

Yang, Jun; Ran, Qincui; Wei, Dapeng; Sun, Tai; Yu, Linfeng; Song, Xianlin; Pu, Lichun; Shi, Haofei; Du, Chunlei

doi:10.1088/1361-6528/aa5b56

Cited by 39 publications

(25 citation statements)

References 44 publications

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“…Others consist of sensor arrays with low spatial resolution, that have not been designed to transduce propagating signals throughout the hand [45,222,223,224,217]. Another goal of prior research has been to design skin-like tactile sensors for strain [225,226,227,228,229,230], pressure [231,232,233,234,235,236,237,238,239,240], or similar mechanical signals. Due to the sensing principles used, these devices are unable to capture tactile signals with the large bandwidth required for capturing distributed vibrations in the hand.…”

Section: Related Researchmentioning

confidence: 99%

Tactile Sensing, Information, and Feedback via Wave Propagation

Shao

2022

Springer Series on Touch and Haptic Systems

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Through my entire PhD study, I learned a lot from my colleagues in the RE Touch Lab. Discussions with Gregory Reardon about technical problems, like in physics or statistics, are always constructive and inspiring. Shantonu Biswas and Thanh Nho Do influenced me with their expertise in nanoengineering and material science. Also, I am lucky to have many supportive colleagues and friends in the lab. Anzu Kawazoe can always cheer me up with her lighthearted mood, unveiling the optimistic side of life to me. Zach Wells and Harald Schafer, beside research collaborations, brought me a lot of fun outside the lab, directing me to the ocean around Santa Barbara. I also very enjoyed the company of Yufei Hao, Taku Hachisu, Simone Fani, Jasper van der Lagemaat and Behnam Khojasteh during their visit to my lab. Starting from the time I joined the lab in Philadelphia, I have been gaining support from Marco Janko and Bin Li. I am really v grateful to have all of them as my colleagues. My friends outside the lab also helped me passing through the challenging paths toward the finish line of my PhD. I want to give special thanks to Mingwei Tang, my friend since childhood, who also obtained a PhD degree in the US. We traveled together to many sights and cities. Those trips reduced my anxiety and rebuilt my courage to march forward. I also value the friendship with Yan Kong and Zhenyu Yang, who provided me after-work entertainment in Harold Frank hall, and emotional support. I miss and appreciate the time with Pingge Jiang, Lei Song, Tao Sun, Yaou Zhou and Yanan Yang during my study in Philadelphia.I appreciate the love, care and support from my girlfriend, Huihui Zhang, during the last two years of my PhD. A delightful, sweet talk with her can always relieve my stress and hearten me, motivating me to look beyond the difficulties.Finally, I like to thank my family, especially my grandmother. I grew up bathing in her unconditional love. She was always proud of me and had the strongest belief in me, from preschool till PhD, granting me the faith to overcome any challenges. I deeply regret not being able to spend enough time with her at home.

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Section: Related Researchmentioning

confidence: 99%

Tactile Sensing, Information, and Feedback via Wave Propagation

Shao

2022

Springer Series on Touch and Haptic Systems

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“…157 Layered graphene with wrinkles is another form of CG. 163,[188][189][190][191][192] Liu et al have fabricated a highly sensitive pressure sensor in which a piece of ultrathin wrinkled graphene film ($80 mm) was sandwiched between conductive substrates. When the pressure is applied on the graphene film, the wrinkled graphene sheets begin to contact with each other via ''point-to-point,'' ''point-to-face,'' and ''face-to-face'' modes, leading to a huge change in electrical resistance.…”

Section: Laser Scribingmentioning

confidence: 99%

Cellular Graphene: Fabrication, Mechanical Properties, and Strain-Sensing Applications

Luo

Samad

Chan

et al. 2019

Matter

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We provide a review of cellular graphene (CG), from its fabrication, to characterization of mechanical properties, to applications in strain and pressure sensing. Although several recent reviews have briefly surveyed various types of strain and pressure sensors fabricated from common one-dimensional or two-dimensional (2D) nanomaterials such as carbon nanotube (CNT), graphene, and metallic nanowire/nanoparticle, the emerging applications of CG in the design and development of strain and pressure sensors, as well as the structure-property-function correlations in sensing performance, have not been systematically covered. CG exhibits unique strain-sensing capabilities that collectively enable a wide range of strain sensing to be achieved. We first review several state-ofthe-art approaches for fabricating CG with emphasis on the engineering of tailored mechanical properties. Second, the strain-and pressure-sensing performance of CG-based devices against a range of fabrication processes is systematically and critically analyzed. Along the way, representative applications of such CG-based sensors are thoroughly discussed. This review aims to provide basic information for the design of novel CG as well as other classes of threedimensional porous structures fabricated from various 2D nanomaterials. In the conclusion, we highlight the extension of design principles to other 2D materials and critically summarize the key issues that need to be addressed in the future.

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“…The GNW film was grown on copper foil (25 μm thick) at a pressure of 50 Pa using RF-PECVD as reported in our previous work [26,29]. The gas proportion (CH 4 :H 2 ) was maintained at a constant ratio of 6:4 at 750°C growing temperature and 200 W RF power.…”

Section: Synthesis Of Gnwsmentioning

confidence: 99%

Anomalous temperature coefficient of resistance in graphene nanowalls/polymer films and applications in infrared photodetectors

et al. 2018

Self Cite

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Graphene nanowalls (GNWs) exhibit outstanding optoelectronic properties due to their peculiar structure, which makes them a great potential in infrared (IR) detection. Herein, a novel IR detector that is composed of polydimethylsiloxane (PDMS) and designed based on GNWs is demonstrated. Such detector possesses an anomalous temperature coefficient of resistance of 180% K −1 and a relatively high change rate of current (up to 16%) under IR radiation from the human body. It primarily attributes to the ultra-high IR absorption of the GNWs and large coefficient of thermal expansion of PDMS. In addition, the GNW/PDMS device possesses excellent detection performance in the IR region with a responsivity of ~1.15 mA W , which is one or two orders of magnitude larger than that of the traditional carbon-based IR detectors. The significant performance indicates that the GNW/PDMS-based devices reveal a novel design concept and promising applications for the future new-generation IR photodetectors.

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Three-dimensional conformal graphene microstructure for flexible and highly sensitive electronic skin

Cited by 39 publications

References 44 publications

Tactile Sensing, Information, and Feedback via Wave Propagation

Tactile Sensing, Information, and Feedback via Wave Propagation

Cellular Graphene: Fabrication, Mechanical Properties, and Strain-Sensing Applications

Anomalous temperature coefficient of resistance in graphene nanowalls/polymer films and applications in infrared photodetectors

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