Ultrasonic Modification of Ag Nanowires and Their Applications in Flexible Transparent Film Heaters and SERS Detectors

Author:

Sun Jie,Yu XinxiangORCID,Li Zhutie,Zhao Junfeng,Zhu Pengcheng,Dong Xiaoyan,Yu Zhigang,Zhao Zhiguo,Shi Dandan,Wang Junqin,Dai Han

Abstract

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.

Funder

A Project of Shandong Province Higher Educational Science and Technology Program

Publisher

MDPI AG

Subject

General Materials Science

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