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(a) SEM image of the ZnO nanorods. (b) HRTEM image of the ZnO nanorods. (c) Electron diffraction pattern of the rods. (d) XRD patterns of the ZnO nanorods.
[(a) and (b)] Sensing characteristics of the ZnO nanorods as exposed to ethanol, , and at a work temperature of , respectively.
Energy band diagrams of two contact ZnO rods in air and in ethanol vapor, respectively: (a) the radius is significantly greater than the space charge layer; (b) the radius is compared to the space charge layer.
(a) Room temperature PL spectrum of ZnO nanorods. (b) XPS spectra of with three resolved O bonding components.
Controlled model and sensitivity of nanorods with different sizes.
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