ZnO nanoparticles on MoS2 microflowers for ultrasensitive SERS detection of bisphenol A

Quan, Yingnan; Yao, Jiacheng; Yang, Shuo; Chen, Lei; Li, Jia; Liu, Yang; Lang, Jihui; Shen, He; Wang, Yaxin; Wang, Yanyan; Yang, Jing; Gao, Ming

doi:10.1007/s00604-019-3702-4

Cited by 52 publications

(30 citation statements)

References 34 publications

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“…One is the electromagnetic mechanism, which is related to the localized surface plasmon resonance of the metal nanoparticles (NPs) 4 . The other is the chemical mechanism, which mainly originates from the charge transfer (CT) between adsorbed molecules and SERS-active substrates 5 . On the other hand, the photoluminescence (PL) of the substrates and adsorbed molecules, acting as a broad-continuum background of SERS spectroscopy, has a great effect on SERS spectroscopy and evenly reduces the distinctiveness of the Raman tag 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Monitoring the charge-transfer process in a Nd-doped semiconductor based on photoluminescence and SERS technology

et al. 2020

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Surface-enhanced Raman scattering (SERS) and photoluminescence (PL) are important photoexcitation spectroscopy techniques; however, understanding how to analyze and modulate the relationship between SERS and PL is rather important for enhancing SERS, having a great effect on practical applications. In this work, a charge-transfer (CT) mechanism is proposed to investigate the change and relationships between SERS and PL. Analyzing the change in PL and SERS before and after the adsorption of the probe molecules on Nd-doped ZnO indicates that the unique optical characteristics of Nd 3+ ions increase the SERS signal. On the other hand, the observed SERS can be used to explain the cause of PL background reduction. This study demonstrates that modulating the interaction between the probe molecules and the substrate can not only enhance Raman scattering but also reduce the SERS background. Our work also provides a guideline for the investigation of CT as well as a new method for exploring fluorescence quenching.

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Section: Introductionmentioning

confidence: 99%

Monitoring the charge-transfer process in a Nd-doped semiconductor based on photoluminescence and SERS technology

et al. 2020

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“…SERS-active materials may be also obtained by the deposition of ZnO nanoparticles on other nanostructured substrates. Quan et al synthesized such substrates by the deposition of ZnO nanoparticles on MoS 2 microflowers [ 81 ]. Analysis of the obtained material showed that the ZnO nanoparticles with sizes in the range from 16 to 25 nm were homogenously distributed on the surface of flower-like MoS 2 microstructures.…”

Section: Sers Substrates That Do Not Contain Nanostructured Metalsmentioning

confidence: 99%

“…Analysis of the obtained material showed that the ZnO nanoparticles with sizes in the range from 16 to 25 nm were homogenously distributed on the surface of flower-like MoS 2 microstructures. The SERS enhancement factor generated by this system was estimated as equal to 5.8 × 10 5 [ 81 ].…”

Section: Sers Substrates That Do Not Contain Nanostructured Metalsmentioning

confidence: 99%

Substrates for Surface-Enhanced Raman Scattering Formed on Nanostructured Non-Metallic Materials: Preparation and Characterization

2020

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The efficiency of the generation of Raman spectra by molecules adsorbed on some substrates (or placed at a very close distance to some substrates) may be many orders of magnitude larger than the efficiency of the generation of Raman spectra by molecules that are not adsorbed. This effect is called surface-enhanced Raman scattering (SERS). In the first SERS experiments, nanostructured plasmonic metals have been used as SERS-active materials. Later, other types of SERS-active materials have also been developed. In this review article, various SERS substrates formed on nanostructured non-metallic materials, including non-metallic nanostructured thin films or non-metallic nanoparticles covered by plasmonic metals and SERS-active nanomaterials that do not contain plasmonic metals, are described. Significant advances for many important applications of SERS spectroscopy of substrates based on nanostructured non-metallic materials allow us to predict a large increase in the significance of such nanomaterials in the near future. Some future perspectives on the application of SERS substrates utilizing nanostructured non-metallic materials are also presented.

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“…Among the semiconductor SERS substrates, ZnO has been proven to be a promising candidate because of its structural versatility, tunable optical properties, efficient charge/energytransfer processes with molecular structures, and so on. [11][12][13][14][15][16] More importantly, by combining noble metal NPs with pure semiconductors, the LSPR absorption region of composite substrates can be expanded, which improves their SERS activity. [17][18][19] Recently, a few Ag/ZnO-based nanocomposites have been constructed for SERS detection.…”

Section: Introductionmentioning

confidence: 99%

Aluminum sheet-induced porous zinc oxide nanosheets decorated with silver nanoparticles for ultrasensitive SERS sensing of crystal violet

Chen

Wang

et al. 2022

Mater. Adv.

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ZnO nanoparticles on MoS2 microflowers for ultrasensitive SERS detection of bisphenol A

Cited by 52 publications

References 34 publications

Monitoring the charge-transfer process in a Nd-doped semiconductor based on photoluminescence and SERS technology

Monitoring the charge-transfer process in a Nd-doped semiconductor based on photoluminescence and SERS technology

Substrates for Surface-Enhanced Raman Scattering Formed on Nanostructured Non-Metallic Materials: Preparation and Characterization

Aluminum sheet-induced porous zinc oxide nanosheets decorated with silver nanoparticles for ultrasensitive SERS sensing of crystal violet

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