fig8
Figure 8. (A and B) Schematic illustration of the electronic sensitization effect (A) and chemical sensitization effect (B) in n-type MOS modified with noble metals. Figure A and B is quoted with permission from Zhu et al.[21]; (C) Schematic illustration of the oxygen adsorption process (C1) and the CO sensing mechanism (C2) in mWO3 and Pt-loaded mWO3. Figure 8C is quoted with permission from Ma et al.[74]; (D) Pt NPs modified Si/WO3 nanowire array sensor and its ethanol sensing performance. Figure 8D is quoted with permission from Ren et al.[161]. NP: Nanoparticle.
