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Open AccessArticle

Facile In Situ Photochemical Synthesis of Silver Nanoaggregates for Surface-Enhanced Raman Scattering Applications

1
Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
2
State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
3
Harbin Institute of Technology, Harbin 150001, China
4
Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(4), 685; https://doi.org/10.3390/nano10040685
Received: 2 March 2020 / Revised: 18 March 2020 / Accepted: 3 April 2020 / Published: 5 April 2020
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
Recently, photochemical synthesis has attracted wide interest on in situ preparing the surface-enhanced Raman scattering (SERS) substrate with excellent performance, especially in a compact space and microfluidic channel. Herein, a facile, green and cost-effective approach to in situ photochemically synthesize silver nanoaggregates is demonstrated for SERS applications. By adjusting the photo-irradiation conditions, the morphologies and sizes of the silver nanoaggregates can be deliberately tailored. The synthesized silver nanoaggregates-based substrates exhibit a highly sensitive and reproducible SERS activity with a low detection limit of 10−8 M for 4-Aminothiophenol detection and relative standard deviation of 12.3%, paving an efficient and promising route for in situ SERS-based rapid detection in the environmental monitoring and food quality control. View Full-Text
Keywords: photochemical synthesis; nanoaggregates; SERS; surface plasmon; hot spot; sensitivity photochemical synthesis; nanoaggregates; SERS; surface plasmon; hot spot; sensitivity
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MDPI and ACS Style

Yin, Z.; He, H.; Wang, Z.; Fang, X.; Xu, C.; Luo, D.; Jiang, S.; Liu, Y.J. Facile In Situ Photochemical Synthesis of Silver Nanoaggregates for Surface-Enhanced Raman Scattering Applications. Nanomaterials 2020, 10, 685.

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