Notably, while the difference in diameter between the two nanostructures is likely not exceeding 10 nm, this might yield a fairly significant difference in the surface of the nanostructure exposed to the gas, corresponding to a surface/volume ratio variable in the range from 0.067 (for a 60 nm diameter nanowire) to 0.057 (for a 70 nm diameter nanowire).
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InAs Nanowire-Based Twin Electrical Sensors Enabling Simultaneous Gas Detection.
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