In situ synthesis of hybrid zinc oxide-silver nanoparticle arrays as a powerful active platform for surface-enhanced Raman scattering detection

Doanh, Tieu Tu; Hiếu, Nguyễn Văn; Trang, Ton Nu Quynh; Thu, Vũ Thị Hạnh

doi:10.1016/j.jsamd.2021.03.007

Cited by 9 publications

(3 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the plasmons in them are in the infrared regions, the contribution from semiconductor components in the SERS substrate is due to chemical enhancement by the charge transfer. [3,19,20,21,22,23,24,25] In this study, we have investigated the SERS enhancement in rGO/Ag 0 /ZnO ternary hybrid substrates with different concentrations of ZnO. The motivation towards the development of a ternary hybrid is that, the individual constituent of it has a distinct function towards a potential SERS substrate viz, (i) silver nanoparticles contribute toward electromagnetic enhancement, (ii) Graphene nanostructures facilitate the fluorescence quenching as well as the binding of analyte molecules due to its characteristic π network and thereby favor the chemical enhancement and, (iii) semiconductor zinc oxide structure to enhance the signal by the charge transfer mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies reveal that nanostructured semiconductor materials like TiO 2 , SnO 2, ZnO and MoO 3 also have the potential to serve as a substrate for SERS detection techniques. Since the plasmons in them are in the infrared regions, the contribution from semiconductor components in the SERS substrate is due to chemical enhancement by the charge transfer [3,19,20,21,22,23,24,25] …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Semiconductor Enhanced rGO/Ag⁰/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Chundekatt Ummer,

Kalarikkal

2024

ChemistrySelect

View full text Add to dashboard Cite

In this work, we have investigated the role of the chemical enhancement mechanism in SERS detection on a ternary hybrid substrate fabricated by incorporating ZnO nanostructures into an in situ synthesized reduced graphene oxide/silver composite. The sensing performance of the ternary substrate at various ZnO concentrations is investigated using Raman reporter molecules (RRM) such as Rhodamine 6G and 4‐Mercaptobenzoic acid. The SERS signals show enhancement by adding varied amounts of ZnO, revealing a new way of SERS enhancement by incorporating semiconductor nanostructures rather than conventional hotspot engineering. To probe chemical enhancement, we kept the electromagnetic contribution constant by keeping the same concentration of Ag in all the substrates investigated in this study. The obtained enhanced SERS signals of the probe molecules reveal the contribution from the chemical enhancement mechanism with the addition of ZnO. This vital observation reveals a new gateway in the field of SERS detection for developing a semiconductor‐enhanced, economical, and sustainable SERS substrate.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Semiconductor Enhanced rGO/Ag⁰/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Chundekatt Ummer,

Kalarikkal

2024

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…Thus, several techniques have been developed to enhance Raman detection 3 . One of the most well-known powerful enhancement strategies currently in use is SERS, a potential label-free and nondestructive tool for molecular and chemical analytical sensing owing to its high sensitivity and ability to reach the single molecule detection limit [4][5][6][7][8][9] . Over the past decade, most research on SERS platforms has emphasized using noble metals based on the electromagnetic enhancement (EE) mechanism 10 .…”

Section: Introductionmentioning

confidence: 99%

Toward Plasmon-Controlled Generation of the Activating Ag Hotspot Nanospheres for Quantitative SERS Analysis

Nguyen,

Ton,

Pham

et al. 2023

Sci. Tech. Dev. J.

View full text Add to dashboard Cite

Introduction: Surface-enhanced Raman scattering (SERS) has attracted enormous concern as a robust vibrational spectroscopy technique with widespread applications, primarily for the ultrasensitive detection of low-concentration molecules and selective identification. Nevertheless, the optimization of SERS efficiency has been impeded by limitations in controlling the size of nanoparticles utilized in this technique. Method: In this study, the morphology, structure, chemical components, and optical properties of the as-synthesized Ag nanoparticles (Ag NPs) via a hydrothermal method were thoroughly investigated by sophisticated analyses. The synthesized Ag NPs were characterized for its morphological characteristics using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-Vis absorption spectroscopy, Raman spectroscopy, and assessed for their SERS performance in detecting organic substances including Crystal Violet (CV) and Rhodamine B (RhB). Results: The results showed that Ag NPs with different sizes could be obtained from 10 to 30 nm. These sizes corresponded to the duration of the hydrothermal method, which was 15, 20, and 25 hours, respectively. The optimal sample exhibited the capability to detect dye molecule solutions at diluted-low concentrations as low as 10-8 M. Conclusion: Through these results, we contribute to advancing the understanding of tailored nanoparticle synthesis for superior SERS performance, thus opening avenues for enhanced molecular detection in various applied analytical fields.

show abstract

Design of high-active SERS in 2D Au/TiO2 thin film for quantitative and photodegraded analysis

Trang,

Bao,

Duong

et al. 2024

Chem. Pap.

View full text Add to dashboard Cite

In situ synthesis of hybrid zinc oxide-silver nanoparticle arrays as a powerful active platform for surface-enhanced Raman scattering detection

Cited by 9 publications

References 40 publications

Semiconductor Enhanced rGO/Ag⁰/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Semiconductor Enhanced rGO/Ag⁰/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Toward Plasmon-Controlled Generation of the Activating Ag Hotspot Nanospheres for Quantitative SERS Analysis

Design of high-active SERS in 2D Au/TiO2 thin film for quantitative and photodegraded analysis

Contact Info

Product

Resources

About

In situ synthesis of hybrid zinc oxide-silver nanoparticle arrays as a powerful active platform for surface-enhanced Raman scattering detection

Cited by 9 publications

References 40 publications

Semiconductor Enhanced rGO/Ag0/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Semiconductor Enhanced rGO/Ag0/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Toward Plasmon-Controlled Generation of the Activating Ag Hotspot Nanospheres for Quantitative SERS Analysis

Design of high-active SERS in 2D Au/TiO2 thin film for quantitative and photodegraded analysis

Contact Info

Product

Resources

About

Semiconductor Enhanced rGO/Ag⁰/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules

Semiconductor Enhanced rGO/Ag⁰/ZnO Ternary Hybrid Revealing Charge Transfer Enhancement in SERS Detection of Raman Reporter Molecules