Appl Opt. 2020 Oct 10;59(29):9216-9224. doi: 10.1364/AO.403064.
We propose a photonic crystal fiber (PCF) sensor based on graphene oxide (GO) composite film modification to simultaneously measure the multi-parameter sensing characteristics of humidity, temperature, and glucose concentration. The GO-polyvinyl alcohol (PVA) composite film is used to measure the humidity-sensing characteristics of the sensor, and the glucose oxidase composite film is used to measure the sensing characteristics of the glucose concentration, respectively. Experiment results show that the sensitivities of the temperature of the GO-PVA coating structure are 0.037 nm/°C, 0.047 nm/°C, and 0.031 nm/°C; the sensitivities of humidity are 0.059 nm/%RH, 0.121 nm/%RH, and 0.047 nm/%RH; and the sensitivities of the glucose concentration of the GO-GOD coating structure are 0.028 nm/(g/L), 0.049 nm/(g/L), and 0.010 nm/(g/L) for three interference dips, respectively. The structure is simple to manufacture and can be used as a sensor for detecting multiple parameters. It can be widely used in biomedicine, environmental monitoring, and other fields.
我们提出了一种基于氧化石墨烯（GO）复合薄膜修饰的光子晶体光纤（PCF）传感器，用于同时测量湿度、温度和葡萄糖浓度的多参数传感特性。GO-聚乙烯醇（PVA）复合薄膜用于测量传感器的湿度传感特性，葡萄糖氧化酶复合薄膜用于分别测量葡萄糖浓度的传感特性。实验结果表明，GO-PVA 涂层结构的温度灵敏度分别为 0.037nm/°C、0.047nm/°C 和 0.031nm/°C；湿度灵敏度分别为 0.059nm/%RH、0.121nm/%RH 和 0.047nm/%RH；GO-GOD 涂层结构的葡萄糖浓度灵敏度分别为 0.028nm/（g/L）、0.049nm/（g/L）和 0.010nm/（g/L），对于三个干扰峰。该结构制造简单，可作为用于检测多个参数的传感器。它可以广泛应用于生物医学、环境监测等领域。
