Yang Minghong, Liu Zhixiong, Nie Qilu, Cheng Mengen, Pei Shilong, Yang Dexun, Cheng Cheng, Guo Donglai
National Engineering Research Center of Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, China.
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
ACS Sens. 2024 Sep 27;9(9):4591-4598. doi: 10.1021/acssensors.4c00606. Epub 2024 Sep 6.
This paper proposes a novel multicomponent gas-sensing optical fiber probe system. It utilizes a precisely engineered Platinum-coated capillary fabricated via Atomic Layer Deposition (ALD) technology as the core for enhanced Raman spectroscopy, marking the first application of ALD in creating such a structure for gas Raman sensing. The noble metal capillary gas Raman probe demonstrates a low detection limit of 55 ppm for CO with a 30 s exposure time and good repeatability in multicomponent gas sensing. The capillary exhibits excellent stability, environmental resistance, and a large core diameter, enabling a rapid gas exchange rate and making it suitable for practical applications.
本文提出了一种新型的多组分气体传感光纤探头系统。它采用通过原子层沉积（ALD）技术精确制造的镀铂毛细管作为增强拉曼光谱的核心，这标志着ALD首次应用于制造用于气体拉曼传感的此类结构。贵金属毛细管气体拉曼探头在30秒的暴露时间下对CO的检测下限为55 ppm，并且在多组分气体传感中具有良好的重复性。该毛细管具有出色的稳定性、耐环境性和较大的芯径，能够实现快速的气体交换速率，适用于实际应用。
