In-decorated NiO Nanoigloos Gas Sensor with Morphological Evolution for Ethanol Sensors
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초록
We investigated the facile and effective strategy for sensitive and selective C2H5OH sensors based on the In-decorated NiO nanoi- gloos. The In-decorated NiO nanoigloos is fabricated by RF sputtering using 750 nm-diameter polystyrene beads using a soft-template. The morphological evolution based on the Van der Drift model was generated through a heterojunction between In metal and NiO, resulting in a pyramidal rough surface. Upon decorating the In on the NiO surface, high sensitivity and selectivity to C2H5OH wereobserved, and gas sensing mechanism was demonstrated by a high surface-to-volume and double Schottky barrier. We are confidentthat the method presented in this study will have a significant impact on the fabrication of effective nanostructures and their application for the gas sensors.
Abstract
We investigated the facile and effective strategy for sensitive and selective C2H5OH sensors based on the In-decorated NiO nanoi- gloos. The In-decorated NiO nanoigloos is fabricated by RF sputtering using 750 nm-diameter polystyrene beads using a soft-template. The morphological evolution based on the Van der Drift model was generated through a heterojunction between In metal and NiO, resulting in a pyramidal rough surface. Upon decorating the In on the NiO surface, high sensitivity and selectivity to C2H5OH wereobserved, and gas sensing mechanism was demonstrated by a high surface-to-volume and double Schottky barrier. We are confidentthat the method presented in this study will have a significant impact on the fabrication of effective nanostructures and their application for the gas sensors.
참고문헌 (19)
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