Graphene-based attached skin sensor preparation method
A graphene and sensor technology, applied in the fields of sensors, medical science, diagnostic recording/measurement, etc., can solve the problems of inconvenient installation and use, large size of the instrument, difficult to wear, etc., and achieve the effect of rapid response, high sensitivity and obvious effect.
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[0022] The preparation method of the attached type graphene skin sensor proposed by the present invention comprises the following steps:
[0023] (1) The graphene oxide solution is drip-coated or spin-coated on the water transfer paper to form a graphene oxide layer 3 on the water transfer paper, and the graphene oxide film is naturally dried to make the dry graphene oxide layer 4 The thickness is 5-40 microns, such as figure 1 (a) shown.
[0024] (2) Scanning irradiation is carried out on the upper surface of the dry graphene oxide layer 4 by means of laser irradiation, and the irradiated dry graphene oxide layer 4 is reduced to a graphene sensing layer 5, which appears black. The wavelength of the irradiated laser is 400-500nm, and the laser power density is 10mW / cm 2 -50mW / cm 2 Between, the scanning speed is 1mm / s-100mm / s. like figure 1 (b) shown.
[0025] (3) Put the structure of above-mentioned step (2) into water, make the sacrificial layer 2 of graphene sensing la...
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