A flexible photoelectric sensor based on three-dimensional conformal graphene and its manufacturing method
A photoelectric sensor and graphene technology, applied in the field of sensors, can solve the problems of complex sensor structure, poor, non-flexible biocompatibility, etc., and achieve good biocompatibility, convenient processing, and good flexibility
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[0054] Example 2: Fabrication of "PDMS / 3D Conformal Graphene / PDMS" Composite Photoelectric Sensor and Testing of Its Sensing Characteristics
[0055] Step 1: Preparation of 3D conformal graphene
[0056] First place the substrate copper foil in acetone, 95vol% ethanol, and pure water for ultrasonic cleaning for 10-15 minutes, blow dry with nitrogen, and then prepare a microscopic surface structure with a three-dimensional inverted pyramid array by photolithography and wet etching. Silicon wafer substrate;
[0057] Then place the above-mentioned silicon chip substrate with the microscopic surface structure of three-dimensional inverted pyramid array in acetone, 95vol% ethanol, and pure water for ultrasonic cleaning for 10-15 minutes, blow dry with nitrogen, and then place it in the vacuum chamber of the tube furnace CVD system In vivo preparation of three-dimensional conformal graphene (such as figure 1 shown), to obtain "three-dimensional conformal graphene / silicon chip subs...
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