Research Progress on Gas Sensors Based on p-Type CuO and Its Composites
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Abstract
Copper oxide (CuO) is a typical p-type semiconducting metal oxide. As a sensing material, pure CuO has more or less defects; therefore, a series of modification methods are applied to improve the gas sensitivity of CuO. Recent advances in gas sensors based on CuO and its composites are reviewed, and the existing problems of CuO-based gas sensors and future research direction are proposed.
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