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. Author manuscript; available in PMC: 2019 Mar 4.
Published in final edited form as: Chem Rev. 2018 Sep 18;119(1):599–663. doi: 10.1021/acs.chemrev.8b00340

Figure 2.

Figure 2.

Schematic of sensing mechanisms in CNT-based sensors: (a) at the sidewall or the length of the CNT (intra-CNT), (b) at the CNT-CNT interface (inter-CNT), and (c) at the interface between the metallic electrode and the CNT (Schottky barrier).