Highly sensitive and selective triethylamine-sensing properties of nanosheets directly grown on ceramic tube by forming NiO/ZnO PN heterojunction
影响因子：5.401
DOI码：10.1016/j.snb.2014.04.029
所属单位：山东大学
发表刊物：Sensors and Actuators B: Chemical
摘要：Chemiresistive gas sensors with high sensitivity, selectivity and reliable fabrication potency for specific gas have been now expected for many applications. A highly sensitive and selective nanostructured triethylamine (TEA) gas sensorhas beenfabricated successfully by designing PN heterojunctionconsisting of ZnO nanosheets and NiO nanoparticles. The ZnO nanosheets directly grew on Al2O3 ceramic tubes by introducing a seed layer with a simple and cost-effective hydrothermal method. By employing pulsed laser deposition (PLD) method, the construction of NiO/ZnO PN heterojunction is highly controllable and reproducible. In comparison with ZnO nanosheet, the NiO/ZnO nanoparticle/nanosheet heterojunction exhibits much better sensing property to TEA gas. The depletion layer formed at the PN junction interface in NiO/ZnO sensor can greatly increase the resistance in air and decrease the resistance in TEA gas. Due to the general working principle and controllable growth strategy, this study provides a way for design and fabrication of the chemiresistive gas sensors with high performance.
论文类型：期刊论文
学科门类：工学
一级学科：材料科学与工程
文献类型：J
卷号：200
页面范围：288-296
是否译文：否
发表时间：2014-04-10
收录刊物：SCI