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纳米金刚石基湿度传感器

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湿度对生产生活具有重要的影响,在工业上需要对废气的湿度进行分析,在农业方面需要控制环境湿度使得植物更好地生长,在气象学上通过湿度值来预测天气,实现对湿度的实时监测具有重要意义.目前,主要是通过湿度传感器来监测湿度.现有的湿度传感器主要由纤维素、聚合物和金属氧化物等材料制成,然而这些传感器很难兼顾灵敏度高,稳定性好等优点.因此,需要寻找一种合适的材料制备出能兼顾这些优良性能的湿度传感器.基于此,制备了纳米金刚石基湿度传感器,该传感器具有高灵敏度(1.1×106%)和良好的稳定性.此外,将该纳米金刚石基湿度传感器应用于呼吸监测,能够对呼吸频率和呼吸流量进行实时分析.
A Nanodiamond Based Humidity Sensor
Humidity has a significant impact on production and daily life.In industry,it is necessary to ana-lyze the humidity of exhaust gases;in agriculture,it is necessary to control the environmental humidity to promote better plant growth;and in meteorology,the humidity values are used to predict weather.Therefore,it is of great significance to achieve real-time monitoring of humidity.Current humidity monitoring is mainly realized by humid-ity sensors mainly made of materials such as cellulose,polymers,and metal oxides,which are difficult to have the advantages of high sensitivity and good stability simultaneously.It is necessary to find a suitable material for a hu-midity sensor that can balance these excellent properties.On this basis,a nanodiamond based humidity sensor is prepared,which has high sensitivity(1.1 × 106%)and good stability.By applying the nanodiamond based humid-ity sensor in respiratory monitoring,the respiratory rate and respiratory flow rate can be analyzed in real-time.

NanodiamondHumidity sensorSensitivityStabilityRespiratory monitoring

张吾优、杨西贵

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郑州大学物理学院河南省金刚石材料与器件重点实验室,河南郑州 450001

纳米金刚石 湿度传感器 灵敏度 稳定性 呼吸监测

2024

真空电子技术
北京真空电子技术研究所

真空电子技术

影响因子:0.166
ISSN:1002-8935
年,卷(期):2024.(5)