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Fabrication of Hierarchical nn Hetero-Junction Composite and Gas Detection Performance in Asphalt

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We present the preparation of a hierarchical nn hetero-junction composite consisting of diminutive SnO2 spheres functionalized bulky WO3 sphere as a novel sensing material via a one-step hydrothermal strategy. Significantly, the comparative sensing properties investigation demonstrated that hierarchical WO3–SnO2 composite exhibiting substantially enhanced performances toward H2S, which is superior to the single component, mainly attributed to the synergistic effect as well as to the hetero-junctions of the diminutive SnO2 and WO3. The results represent an advance of hierarchical structures in further enhancing the functionality of gas sensors, and this facile method could be applicable to many sensing materials.
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Document Type: Research Article

Publication date: September 1, 2018

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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