激光与光电子学进展, 2020, 57 (21): 211405, 网络出版: 2020-11-06
纳米棒Pt-WO3微结构光纤氢气传感器 
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Micro-Structured Fiber Hydrogen Sensor Based on Nanorod Pt-WO3
激光器 光纤光栅 氢气传感器 纳米棒 飞秒激光 lasers fiber Bragg grating hydrogen sensor Pt-WO3 Pt-WO3 nanorod femtosecond laser
摘要
制备了一种纳米棒Pt-WO3螺旋微结构光纤布拉格光栅(FBG)氢传感器。采用飞秒激光对光纤布拉格光栅包层进行了螺旋微结构的制备,通过水热法合成了纳米棒WO3,然后分解Pt(acca)2前驱体,合成Pt-WO3纳米棒颗粒,将两种金属的原子比控制在Pt∶W=1∶5,将纳米棒Pt-WO3镀在FBG微结构包层上。相比镀Pt-WO3膜的标准FBG,Pt-WO3纳米棒微结构FBG氢传感器灵敏度提高了1.5倍,传感器在1%氢气体积分数下的响应时间为15~30 s,该传感器在氢气传感领域具有良好的应用前景。
Abstract
Spiral micro-structured fiber Bragg grating (FBG) coated with nanorod Pt-WO3 hydrogen sensor was fabricated. Femtosecond laser was employed to fabricate spiral micro-structured on fiber cladding of FBG. WO3 nanorods were synthesized by hydrothermal method. Pt (acca)2 precursor was decomposed and Pt-WO3 nanorod particles were synthesized. The molar ratio of the two metals was controlled at Pt∶W=1∶5, the nanorod Pt-WO3 was coated on the surface of micro-structured cladding of FBG. The sensitivity of the double spiral micro-structured FBG sensors is about 2.5 times than that of standard FBG sensors. The response time of the sensor under 1% hydrogen concentration is 15 s to 30 s The sensor has good application prospects in the field of hydrogen sensing.
周贤, 杨沫, 张文, 李波, 明兴祖. 纳米棒Pt-WO3微结构光纤氢气传感器[J]. 激光与光电子学进展, 2020, 57(21): 211405. Zhou Xian, Yang Mo, Zhang Wen, Li Bo, Ming Xingzu. Micro-Structured Fiber Hydrogen Sensor Based on Nanorod Pt-WO3[J]. Laser & Optoelectronics Progress, 2020, 57(21): 211405.
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