Figure 5 | Scientific Reports

Figure 5

From: Hybrid strategy of graphene/carbon nanotube hierarchical networks for highly sensitive, flexible wearable strain sensors

Figure 5

Piezoresistive performance of thin film sensors. (a) Measured I-V curves of the GNP-CNT hybrid thin film strain sensor with various applied strain levels. (b) The ΔR/R responses of the GNP-CNT hybrid thin film sensor under 7.5% strain and 10% strain. (c) Plot of the resistance response over 1000 loading/unloading cycles at a strain of 10%. (d) Effect of different strain level on the gauge factors of sole CNTs and sole graphene thin film sensors. (e) Effect of different strain level on the gauge factors of GNP-CNT hybrid thin film strain sensor with different GNP/CNTs ratio. The optimal volume ratio of graphene dispersion to CNTs dispersion is 5:2.

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