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Huazhong University of Science and Technology "Adv. Electron. Mater": Deposition of graphene nanosheets on flexible magnetic films for ultra-high sensitivity magneto-sensitive crack sensors

 Last Update: 2022-08-28
 Source: Internet
 Author: User

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investigated a novel magneto-sensitive crack sensor (M-CS) by depositing graphene nanosheets on flexible magnetic films by an infrared drying technique

The M-CS exhibits ultrahigh sensitivity (relative resistance change up to 4.
0 × 10^10) towards moderate magnetic fields of 43 mT at room temperature

Figure 1.
Schematic diagram of the fabrication process of flexible M-CS

Figure 2, a) LSV curves and b) corresponding resistance changes of M-CS with respect to different magnetic field strengths at a graphene solution concentration of 2 mg mL-1

Figure 3.
The influence of various factors on the relative resistance change of M-CS

Figure 4.
M-CS-based combination lock for distinguishing target magnetic combination

In conclusion, a novel M-CS was demonstrated by depositing graphene nanosheets on flexible magnetic substrates by surface infrared drying technique

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