Surface enhanced Raman scattering (SERS) investigation and sensitive detection of zinc oxide nanorods (ZnO Nrds) deposited on silver nanoparticles (Ag NPs) substrate

Sedira, Sofiane; Sahli, Mounir

doi:10.1016/j.matlet.2019.07.023

Cited by 16 publications

(3 citation statements)

References 17 publications

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“…Metal NPs grown on 1D ZnO NSs have been highly explored for improved SERS activities. [395][396][397][398][399][400] Wheatear-like ZnO nanoarrays have been fabricated via low-temperature solution growth on the atomic layer deposition-grown ZnO seed layer by Shan et al [401] This provides room to accommodate more silver NPs in the corners and edges of the whisker-type ZnO structures, which results in an increased enhancement factor up to %0.3 Â 10 6 for rhodamine 6 G. The team further performed hydrogenation on ZnO/Ag structure to form H-ZnO/Ag which showed significant improvement in the SERS activity with an EF of %0.49 Â 10 8 with a detection limit of 10 À9 M R6G. This is due to the increase in the porosity and eventually an increase in the overall surface area of the ZnO structure.…”

Section: Sers On Detection Of (Bio-) Organic Moleculesmentioning

confidence: 99%

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

et al. 2023

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Zinc oxide is one of the inexpensive semiconductors with rich electronic and optical properties. It is studied in energy applications for a long time. The wide bandgap of ZnO either needs structural change or sensitizing via quantum dots, dyes, or metallic nanoparticles (through the plasmonic effect) to absorb visible light for applications in solar energy harvesting devices. This review provides a fundamental insight of plasmonic visible light harvesting by ZnO and an account of recent advances in solar photovoltaic, photoelectrochemical water splitting, and other photoredox activities, such as water quality enhancement and CO2 reduction.

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Section: Sers On Detection Of (Bio-) Organic Moleculesmentioning

confidence: 99%

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

et al. 2023

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“…In the practical application, silver nanoparticles are coated on the substrate, which is known as SERS substrate. Mostly, researchers start to prepare good colloidal silver nanoparticles and then to deposite them on a certain substrate using spin coating technique [8], Langmuir Blodgett technique [9], drop dry technique [2], block copolymer process [10] and printing technique [11] which are known quite complicated. Furthermore, the silver nanoparticles are sometimes not easily to deposit on the substrate, thus the silver nanoparticles disappear when the substrate is immersed in liquid sample or analyte.…”

Section: Introductionmentioning

confidence: 99%

Growth of silver nanoparticles on unpolished silicon substrate by used of microwave-assisted technique to enhance the Raman spectrum of glucose

Isnaeni¹,

Yudasari²,

Hidayah³

2022

J. Phys.: Conf. Ser.

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Silver nanoparticle is useful metallic nanoparticle due to plasmonic property. One of the most important application of silver nanoparticle is enhancing Raman spectrum using so-called surface-enhanced Raman spectroscopy (SERS). Mostly, researchers synthesize colloidal silver nanoparticles and deposite on substrate to form SERS substrates. In this work, we simplified the synthesis of SERS substrate by use of microwave. We have successfully grown silver nanoparticles on unpolished silicon substrate using single step microwave-assisted technique. The unpolished silicon substrate has micro-size chambers that are useful for Raman measurement. The silver nanoparticles on silicon substrate were approximately 88 nm in diameter. Our experiment using corn syrup revealed that our SERS substrate enhance Raman peaks spectra of glucose and galactose by more than 16 times.

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“…Zinc oxide (ZnO) is a versatile n-type semiconducting material owing to the direct bandgap (3.37 eV) with a large exciton binding energy (60 meV) at room temperature, bio-safe, functional biocompatible, and high isoelectric point (~9.5) [1,2]. Among all diverse morphologies of ZnO nanostructures such as nanosheets, nanoflakes, nanoplates, nanoflowers, and nanocombs [3][4][5][6][7][8][9][10], nanorods (NRs) have higher surface area and catalytic properties, and for that reason, they can be utilized in many potential applications such as sensors, field-effect transistors, piezoelectric generators, and biosensors [5,7,11,12].…”

Section: Introductionmentioning

confidence: 99%

Developing Conductive Highly Ordered Zinc Oxide Nanorods by Acetylacetonate-Assisted Growth

et al. 2020

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Highly ordered vertically grown zinc oxide nanorods (ZnO NRs) were synthesized on ZnO-coated SiO2/Si substrate using zinc acetylacetonate hydrate as a precursor via a simple hydrothermal method at 85 °C. We used 0.05 M of ZnO solution to facilitate the growth of ZnO NRs and the immersion time was varied from 0.5 to 4 h. The atomic force microscopy revealed the surface roughness of ZnO seed layer used to grow the ZnO NRs. The morphology of vertically grown ZnO NRs was observed by field emission scanning electron microscopy. X-ray diffraction examination and transmission electron microscopy confirmed that the structure of highly ordered ZnO NRs was crystalline with a strong (002) peak corresponded to ZnO hexagonal wurtzite structure. The growth of highly ordered ZnO NRs was favorable due to the continuous supply of Zn2+ ions and chelating agents properties obtained from the acetylacetonate-derived precursor during the synthesis. Two-point probe current–voltage measurement and UV–vis spectroscopy of the ZnO NRs indicated a resistivity and optical bandgap value of 0.44 Ω.cm and 3.35 eV, respectively. The photoluminescence spectrum showed a broad peak centered at 623 nm in the visible region corresponded to the oxygen vacancies from the ZnO NRs. This study demonstrates that acetylacetonate-derived precursors can be used for the production of ZnO NRs-based devices with a potential application in biosensors.

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Surface enhanced Raman scattering (SERS) investigation and sensitive detection of zinc oxide nanorods (ZnO Nrds) deposited on silver nanoparticles (Ag NPs) substrate

Cited by 16 publications

References 17 publications

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

Growth of silver nanoparticles on unpolished silicon substrate by used of microwave-assisted technique to enhance the Raman spectrum of glucose

Developing Conductive Highly Ordered Zinc Oxide Nanorods by Acetylacetonate-Assisted Growth

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