Durable and Flexible Bio-assembled RGO-BC/BC Bilayer Electrodes for Pressure Sensing

Guan, Fangyi; Han, Zhiliang; Jin, Mengtian; Wu, Zhuotong; Chen, Ye; Chen, Shiyan; Wang, Huaping

doi:10.1007/s42765-021-00066-y

Cited by 42 publications

(16 citation statements)

References 41 publications

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“…Increased conductivity is obtainable (200-300 S/cm) with reconstruction of the network by annealing at elevated temperatures around 900 • C. However, annealing without chemical reduction generates many defects on the grid due to the liberation of carbon monoxides and dioxides. Such type of rGO is ideal in electrode-form for supercapacitors and batteries due to the increased porosity, which allows easy cross-plane diffusion of ions and the large surface area [62,77,78]. The main reduction of functional groups occurs between 160-300 • C, while the carbonyls are cleaved at temperatures above 500 • C. Reconstruction of the network takes place at above 700 • C, and temperatures more than 900 • C are required for less than 1% oxygen content.…”

Section: Reduced Graphene Oxide (Rgo)mentioning

confidence: 99%

Graphene Oxide Synthesis, Properties and Characterization Techniques: A Comprehensive Review

et al. 2021

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The unique properties of graphene oxide (GO) have attracted the attention of the research community and cost-effective routes for its production are studied. The type and percentage of the oxygen groups that decorate a GO sheet are dependent on the synthesis path, and this path specifies the carbon content of the sheet. The chemical reduction of GO results in reduced graphene oxide (rGO) while the removal of the oxygen groups is also achievable with thermal processes (tpGO). This review article introduces the reader to the carbon allotropes, provides information about graphene which is the backbone of GO and focuses on GO synthesis and properties. The last part covers some characterization techniques of GO (XRD, FTIR, AFM, SEM-EDS, N2 porosimetry and UV-Vis) with a view to the fundamental principles of each technique. Some critical aspects arise for GO synthesized and characterized from our group.

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Section: Reduced Graphene Oxide (Rgo)mentioning

confidence: 99%

Graphene Oxide Synthesis, Properties and Characterization Techniques: A Comprehensive Review

et al. 2021

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“…[55][56][57] Therefore, it is of farreaching significance to study the application of sensors. [58][59][60] In this case, it will be interesting to study the perfect absorber based on graphene metamaterials to achieve high-performance terahertz sensing applications.…”

Section: Analysis Of Sensing Properties Of Absorbermentioning

confidence: 99%

Tunable Perfect Absorber of Graphene Metamaterial in the Terahertz Band and Its Sensing Properties

Zhu

Yin

2022

Advanced Photonics Research

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Herein, a dual‐band tunable ideal absorber based on graphene array, and the dynamic tuning performance of the perfect absorber in the terahertz band and its sensing properties based on graphene metamaterials are studied. The absorber shows two perfect absorption peaks at 1.01 and 1.86 THz, with an absorbance of 99.5% and 99.9%, respectively. With an elevation angle in the range of 0°–30° and a frequency in the range of 0.971–1.100 THz or 1.794–1.897 THz, the absorber designed herein can achieve an absorbance greater than 90%. Owing to the superior properties of graphene, dynamic tuning of the absorption frequency band, absorption bandwidth, and relative bandwidth of the absorber can be achieved by adjusting the Fermi level of graphene. In addition, adjusting the relaxation time realizes dynamic tuning of the absorption bandwidth and the absorbance with constant resonant frequency and fixed geometric parameters. Moreover, the sensitivity of the absorber reaches 492.5 GHz/RIU, which can achieve the sensing resolution required for the resonance frequency. This research provides a new concept for the development of high‐performance terahertz devices.

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“…Guan and co-workers reported a bio-assembled sensitive pressure sensor based on a reduced graphene oxide-bacterial cellulose/bacterial cellulose (RGO-BC/BC) bilayer film, which could monitor human motion in real time, sense spatial pressure distribution and correct human walking posture for health care. 5 This electronic skin sensor has potential development in wearable electronics and healthcare.…”

Section: Introductionmentioning

confidence: 99%

Recent advances of graphene–biomacromolecule nanocomposites in medical applications

Wang

et al. 2023

J. Mater. Chem. B

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Durable and Flexible Bio-assembled RGO-BC/BC Bilayer Electrodes for Pressure Sensing

Cited by 42 publications

References 41 publications

Graphene Oxide Synthesis, Properties and Characterization Techniques: A Comprehensive Review

Graphene Oxide Synthesis, Properties and Characterization Techniques: A Comprehensive Review

Tunable Perfect Absorber of Graphene Metamaterial in the Terahertz Band and Its Sensing Properties

Recent advances of graphene–biomacromolecule nanocomposites in medical applications

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