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High-performance surface-enhanced Raman scattering substrate prepared by self-assembling of silver nanoparticles into the nanogaps of silver nanoislands.
Appl Opt. 2017 Jul 10; 56(20):5751-5760.AO

Abstract

We report an effective and simple method to further enhance the surface-enhanced Raman scattering (SERS) by silver (Ag) nanoparticles (AgNPs) self-assembling into the nanogaps of an Ag nanoisland (AgNIs). The AgNIs prepared by dewetting of Ag film created a nanorough surface, which induced the Ag nanoparticles to regularly deposit into the nanogaps. AgNPs and AgNIs samples were also prepared for comparative analysis. Their SERS activities were investigated theoretically and experimentally. Experimental enhancement factors (EFs) for AgNPs, AgNIs, and AgNPs decorated AgNIs substrate (AgNPs-AgNIs) were ∼107, ∼106, ∼108, respectively, with relative standard deviation (RSD) of 66.1%, 12.9%, and 13.2%. Remarkable enhancement (EF≈108) and excellent reproducibility (RSD=13.2%) indicated the AgNPs-AgNIs had a high potential in practical application. Electromagnetic simulation using COMSOL Multiphysics demonstrated that the additional enhancement of the SERS effect could be mainly attributed to the improvement of the local electromagnetic field. Moreover, the deposition process of Ag nanoparticles was analyzed in detail to understand the reproducibility of AgNPs-AgNIs.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29047723

Citation

Quan, Jiamin, et al. "High-performance Surface-enhanced Raman Scattering Substrate Prepared By Self-assembling of Silver Nanoparticles Into the Nanogaps of Silver Nanoislands." Applied Optics, vol. 56, no. 20, 2017, pp. 5751-5760.
Quan J, Zhu Y, Zhang J, et al. High-performance surface-enhanced Raman scattering substrate prepared by self-assembling of silver nanoparticles into the nanogaps of silver nanoislands. Appl Opt. 2017;56(20):5751-5760.
Quan, J., Zhu, Y., Zhang, J., Li, J., & Wang, N. (2017). High-performance surface-enhanced Raman scattering substrate prepared by self-assembling of silver nanoparticles into the nanogaps of silver nanoislands. Applied Optics, 56(20), 5751-5760. https://doi.org/10.1364/AO.56.005751
Quan J, et al. High-performance Surface-enhanced Raman Scattering Substrate Prepared By Self-assembling of Silver Nanoparticles Into the Nanogaps of Silver Nanoislands. Appl Opt. 2017 Jul 10;56(20):5751-5760. PubMed PMID: 29047723.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-performance surface-enhanced Raman scattering substrate prepared by self-assembling of silver nanoparticles into the nanogaps of silver nanoislands. AU - Quan,Jiamin, AU - Zhu,Yong, AU - Zhang,Jie, AU - Li,Junyin, AU - Wang,Ning, PY - 2017/10/20/entrez PY - 2017/10/20/pubmed PY - 2017/10/20/medline SP - 5751 EP - 5760 JF - Applied optics JO - Appl Opt VL - 56 IS - 20 N2 - We report an effective and simple method to further enhance the surface-enhanced Raman scattering (SERS) by silver (Ag) nanoparticles (AgNPs) self-assembling into the nanogaps of an Ag nanoisland (AgNIs). The AgNIs prepared by dewetting of Ag film created a nanorough surface, which induced the Ag nanoparticles to regularly deposit into the nanogaps. AgNPs and AgNIs samples were also prepared for comparative analysis. Their SERS activities were investigated theoretically and experimentally. Experimental enhancement factors (EFs) for AgNPs, AgNIs, and AgNPs decorated AgNIs substrate (AgNPs-AgNIs) were ∼107, ∼106, ∼108, respectively, with relative standard deviation (RSD) of 66.1%, 12.9%, and 13.2%. Remarkable enhancement (EF≈108) and excellent reproducibility (RSD=13.2%) indicated the AgNPs-AgNIs had a high potential in practical application. Electromagnetic simulation using COMSOL Multiphysics demonstrated that the additional enhancement of the SERS effect could be mainly attributed to the improvement of the local electromagnetic field. Moreover, the deposition process of Ag nanoparticles was analyzed in detail to understand the reproducibility of AgNPs-AgNIs. SN - 1539-4522 UR - https://www.unboundmedicine.com/medline/citation/29047723/High_performance_surface_enhanced_Raman_scattering_substrate_prepared_by_self_assembling_of_silver_nanoparticles_into_the_nanogaps_of_silver_nanoislands_ L2 - https://scite.ai/reports/29047723 DB - PRIME DP - Unbound Medicine ER -
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