Transparent conductive film of silver nanowires employed for SERS detection of mercury ions

• Published in: Materials chemistry and physics 2023-11, Vol.309, p.128335, Article 128335
• Main Authors: Chen, Zheng, Su, Xinhai, Luo, Huihua, Ade, Ayingmo, Zhu, Haifeng, Zhang, Yaping, Yu, Lianqing
• Format: Article
• Language: English
• Subjects: Hg2+ ion; SERS detection; Silver nanowires; Transparent conductive film
• ISSN: 0254-0584
• DOI: 10.1016/j.matchemphys.2023.128335

Silver nanowires (Ag NWs)/glass transparent conductive film was prepared by one-step spin coating method. l-Cysteine (L-Cys) functionalized Ag NWs were employed for the surface-enhanced Raman scattering (SERS) detection, which was used to evaluate the photoelectric performance by detecting heavy metal Hg2+ ions. The L-Cys functionalized Ag NWs/glass transparent conductive film exhibits selective, rapid and sensitive detection to Hg2+. The limit of Hg2+ detection reaches 10−9 M, which is ten times lower than the maximum Hg2+ concentration in drinking water set by the US Environmental Protection Agency. Furthermore, this dual-function of transparent conductive silver sensor has high accuracy, and reliability, which provides new insights into the design of rapid and sensitive SERS detection of mercury ions, and indicates a great potential for efficient heavy metal detection. •Silver nanowires transparent conductive film was prepared by spin coating method.•The film exhibits selective, rapid and sensitive detection to Hg2+.•Mechanism of detection of Hg2+ for Ag NWs transparent is evaluated.