Sun Jie, Yu Xinxiang, Li Zhutie, Zhao Junfeng, Zhu Pengcheng, Dong Xiaoyan, Yu Zhigang, Zhao Zhiguo, Shi Dandan, Wang Junqin, Dai Han
Laboratory of Advanced Light Alloy Materials and Devices, Yantai Nanshan University, Longkou 265713, China.
Postdoctoral Station of Nanshan Group Co., Ltd., Longkou 265706, China.
Materials (Basel). 2019 Mar 18;12(6):893. doi: 10.3390/ma12060893.
Ultrasonic morphology modification of silver (Ag) nanowires and their applications in transparent film heaters for defogging in electric vehicles and surface-enhanced Raman scattering (SERS) detectors have been studied. With 10 min ultrasonic treatment of Ag nanowires, the electro-thermal conversion capability of Ag nanowire based transparent film heaters is efficiently improved (about 50% increase in temperature rise), which can be mainly attributed to the cross-section area reduction and the serious agglomerations of the ultrasonic modified Ag nanowire films. Furthermore, the bending or fracture caused by deformation of Ag nanowires after ultrasonic treatment provides more hot spots for SERS, and therefore lead to a significant SERS signal enhancement. This work not only greatly improves the performance of Ag nanowire based transparent film heaters and SERS detectors, but provides a new way for the functional modification of Ag nanowires.
研究了银（Ag）纳米线的超声形态改性及其在电动汽车除雾透明薄膜加热器和表面增强拉曼散射（SERS）探测器中的应用。对Ag纳米线进行10分钟超声处理后，基于Ag纳米线的透明薄膜加热器的电热转换能力得到有效提高（温升提高约50%），这主要归因于超声改性Ag纳米线薄膜的横截面积减小和严重团聚。此外，超声处理后Ag纳米线变形引起的弯曲或断裂为SERS提供了更多热点，从而导致SERS信号显著增强。这项工作不仅大大提高了基于Ag纳米线的透明薄膜加热器和SERS探测器的性能，还为Ag纳米线的功能改性提供了一种新方法。
