Low-Cost SERS Substrates via AuNP-Decorated Carbonized Polyimide Films for Fluorescence-Quenched Raman Sensing
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Abstract
We developed a low-cost SERS substrate using laser-carbonized poly-oxydiphenylene-pyromellitimide (polyimide) and gold nanoparticles. This hybrid suppresses fluorescence and enhances Raman signals. Tested with Rhodamine 6G, it reveals high signal-to-noise ratio peaks, offering a practical, scalable solution for in-situ molecular sensing.
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Polyimide, Fluorescence, SERS, Raman
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02 engineering and technology, 0210 nano-technology
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checked on Jul 30, 2026
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