Luminescence enhancement of ZnS:Mn and ZnS:Cu-PVP nanoparticles by laser radiation annealing

Thai, Dang Van; Ben, Pham Van; Trung, Vũ Quốc; Van, Bui Hong; Nghĩa, Nguyễn Mạnh; Thi, Tran Minh

doi:10.1016/j.optmat.2022.113020

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…In addition, it can also be due to the change of SiO 2 @Ag to R6G volume ratio, as the R6G concentration is changed, leading to the change of the energy transfer distance [44]. The energy transfer process between coated polymers and nanoparticles of composite materials has also been known [45,46]. It can be seen that, herein, the surface-functionalized SiO 2 spheres possessed the functional -NH 2 groups of APTMS molecules as anchors attracting both Ag NPs and R6G molecules on the surface of the SiO 2 NSs, so there always ensured a suitable distance between them for the MEF effect.…”

Section: The Mef and Sers Characterizations Of Sio 2 @Ag Nanocompositesmentioning

confidence: 99%

Synthesis of SiO2@Ag Nanocomposite for Investigating Metal-Enhanced Fluorescence and Surface-Enhanced Raman Spectroscopy

Thai,

Pham,

Sai

et al. 2024

J Fluoresc

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SiO 2 @Ag nanocomposite (NC) has been synthesized by the chemical reduction and Stӧber method for enhancement photoluminescence (PL) and Raman characteristics of Rhodamine 6G (R6G) and Malachite green (MG) dyes. As-synthesized SiO 2 @Ag nanocomposite indicated SiO 2 nanosphere (NS) and Ag nanoparticle (NP) morphologies. The SiO 2 @Ag nanocomposite was high quality with a wellde ned crystallite phase with average sizes of 24 nm and 132 nm for Ag NP and SiO 2 NC, respectively. By using SiO 2 @Ag NC, the PL intensity of the R6G (at 59.17 ppm) was increased approximately 133 times.The surface-enhanced Raman spectroscopy (SERS) of the MG (at 1.0 ppm) with SiO 2 @Ag NC as substrate, clearly observed vibrational modes in MG dye at 798, 916, 1172, 1394, and 1616 cm − 1 . As a result, the SERS enhancement factor (EF SERS ) at 1172 cm − 1 obtained 6.3x10 6 . This pioneering study points to the potential of SiO 2 @Ag nanocomposite as a promising material for effective photoluminescence and Raman characteristics at low-concentration dyes.

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Section: The Mef and Sers Characterizations Of Sio 2 @Ag Nanocompositesmentioning

confidence: 99%

Synthesis of SiO2@Ag Nanocomposite for Investigating Metal-Enhanced Fluorescence and Surface-Enhanced Raman Spectroscopy

Thai,

Pham,

Sai

et al. 2024

J Fluoresc

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show abstract

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2024

Computing With Multi‐Value Logic in Quantum Dot Cellular Automata

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Structural, Optical, and Electrical Properties of Cu-Doped ZnS Nanoparticles Prepared by Solid-State Reaction

Mummadi,

Shaik

2024

Braz J Phys

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Luminescence enhancement of ZnS:Mn and ZnS:Cu-PVP nanoparticles by laser radiation annealing

Cited by 4 publications

References 31 publications

Synthesis of SiO2@Ag Nanocomposite for Investigating Metal-Enhanced Fluorescence and Surface-Enhanced Raman Spectroscopy

Synthesis of SiO2@Ag Nanocomposite for Investigating Metal-Enhanced Fluorescence and Surface-Enhanced Raman Spectroscopy

References

Structural, Optical, and Electrical Properties of Cu-Doped ZnS Nanoparticles Prepared by Solid-State Reaction

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