Highly reproducible, large scale inkjet-printed Ag nanoparticles-ink SERS substrate
2020; Elsevier BV; Volume: 8; Linguagem: Inglês
10.1016/j.rinma.2020.100139
ISSN2590-048X
AutoresSamir Kumar, Kyoko Namura, Daisuke Kumaki, Shizuo Tokito, Motofumi Suzuki,
Tópico(s)Quantum Dots Synthesis And Properties
ResumoWe report the fabrication of a low-cost, and highly reproducible large scale surface-enhanced Raman spectroscopy (SERS) substrate using an inkjet-printed Ag nanoparticle-ink (AgNI). The AgNI SERS substrates were evaluated for SERS using trans-1,2-bis(4-pyridyl)ethylene (BPY) as a molecular probe. AgNI substrates significantly enhanced the SERS signals with the limit of detection of 1.8 × 10−7 g/mL for BPY. The printed AgNI dot arrays exhibit an excellent SERS performance and reproducibility. The batch-to-batch and spot-to-spot standard deviation value of less than 10% was obtained. The results reveal the reproducibility of the AgNI SERS dot arrays and its potential application for SERS substrates.
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