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ACS Appl Mater Interfaces. 2017 Jul 19;9(28):24148-24154. doi: 10.1021/acsami.7b07311. Epub 2017 Jul 3.

Ultrafast Dynamic Pressure Sensors Based on Graphene Hybrid Structure.

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Shanghai Key Laboratory of Multidimensional Information Processing, State Key Laboratory of Transducer Technology, Department of Electrical Engineering, East China Normal University , 500 Dongchuan Road, Shanghai 200241, China.
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences , 500 Yutian Road, Shanghai 200083, China.
Department of Electronic Engineering, The Chinese University of Hong Kong , Hong Kong SAR, China.
Science and Technology on Microsystem Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences , 865 Changning Road, Shanghai 200050, China.


Mechanical flexible electronic skin has been focused on sensing various physical parameters, such as pressure and temperature. The studies of material design and array-accessible devices are the building blocks of strain sensors for subtle pressure sensing. Here, we report a new and facile preparation of a graphene hybrid structure with an ultrafast dynamic pressure response. Graphene oxide nanosheets are used as a surfactant to prevent graphene restacking in aqueous solution. This graphene hybrid structure exhibits a frequency-independent pressure resistive sensing property. Exceeding natural skin, such pressure sensors, can provide transient responses from static up to 10 000 Hz dynamic frequencies. Integrated by the controlling system, the array-accessible sensors can manipulate a robot arm and self-rectify the temperature of a heating blanket. This may pave a path toward the future application of graphene-based wearable electronics.


dynamic response; electronic devices; graphene; pressure sensor; wearable electronics


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