2022
DOI: 10.1063/5.0084907
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Aluminum-black silicon plasmonic nano-eggs structure for deep-UV surface-enhanced resonance Raman spectroscopy

Abstract: By combining surface-enhanced Raman spectroscopy together with resonance Raman effects in the deep-UV region, ultra-sensitive and selective molecule detection can be achieved by deep-UV surface-enhanced resonance Raman spectroscopy (SERRS). Here, we report a deep-UV plasmonic nano-eggs structure consisting of elongated Al nanoparticles on black Si (BSi) for use in deep-UV SERRS characterization of biomolecules. The Al/BSi nano-eggs structure can be easily fabricated over a large area via conventional technique… Show more

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Cited by 7 publications
(4 citation statements)
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“…With the variety in elemental composition and substrate morphology, many possible combinations have shown UV-SERS activity, as visualized by the thickness of the colored links in Figure 3. The most studied UV-SERS substrate has been Al NSs, with 19 published reports [42,[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] (highlighted with thick, blue link in Figure 3). In the next section, we will explore the SERS performance metrics to determine the bestperforming UV-SERS substrates.…”
Section: Elemental Compositions and Morphologies Of Uv-sers Substratesmentioning
confidence: 99%
“…With the variety in elemental composition and substrate morphology, many possible combinations have shown UV-SERS activity, as visualized by the thickness of the colored links in Figure 3. The most studied UV-SERS substrate has been Al NSs, with 19 published reports [42,[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] (highlighted with thick, blue link in Figure 3). In the next section, we will explore the SERS performance metrics to determine the bestperforming UV-SERS substrates.…”
Section: Elemental Compositions and Morphologies Of Uv-sers Substratesmentioning
confidence: 99%
“…[2,[6][7][8] So far, noble metals such as Au, Ag, and Cu have played a dominant role in SERS applications due to their ability to quench fluorescence and enhance the EM fields through plasmon resonances, achieving ultrasensitive and even single-molecule-level SERS detection. [9][10][11][12][13] However, there are some disadvantages for noble metal SERS substrates such as high cost, poor chemical and thermal stability, lack of uniformity and biocompatibility, low SERS signal reproducibility, and poor selective recognition ability for probe molecules. [9,14,15] Semiconductor SERS substrates are a promising alternative to metals due to their better chemical stability and biocompatibility.…”
Section: Introductionmentioning
confidence: 99%
“…Based on the different modes of energy propagation, SPR can be divided into two categories: propagating surface plasmon polaritons (PSPPs) and localized surface plasmon resonance (LSPR). PSPPs exist at planar interfaces between metal materials and dielectrics such as thin metallic film structure and the energy transmission is along the metal surface. , LSPR exists on the surface of discrete nanostructures such as metal nanoparticles (NPs), and the energy is concentrated into nanoscale regions, leading to the enhancement of the local electromagnetic field (often referred to as “hot spots”). , These effects have been extensively researched and applied in various practical applications, including photocatalysis, , optical sensing, and solar energy utilization. , Among them, SPR-based optical refractive index (RI) sensing has received much attention in the field of biological and chemical sensing owing to the advantages of high sensing sensitivity and simple detection principle.…”
Section: Introductionmentioning
confidence: 99%