Investigation of shape controlled silver nanoplates by a solvothermal process

Lu, Qi; Lee, Kun-Jae; Lee, Kyu-Bok; Kim, Hee-Taik; Lee, Joun; Myung, Nosang V.; Choa, Yong‐Ho

doi:10.1016/j.jcis.2009.09.066

Cited by 29 publications

(16 citation statements)

References 17 publications

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“…When the reaction temperature is as high as~160°C, larger than the boiling point of the DMF, with the assistance of PVP, the main product is triangular nanoplates. The triangular nanoplates tend to assemble together due to the dipole-dipole interaction [25], and the final morphology is connected nanotriangle or nanoplate.…”

Section: Resultsmentioning

confidence: 99%

Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

et al. 2015

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Research studies on plasmonic properties of triangular-shaped silver nanoparticles might lead to several interesting applications. However, in this work, triangularshaped silver nanoparticles have been synthesized by simple solvothermal technique and reported the effect of size on the electron-phonon scattering in the synthesized materials by analyzing their temperature-dependent photoluminescence (PL) emission characteristics. It has been observed that total integrated PL emission intensity is quenched by 33 % with the increase in temperature from 278 to 323 K. The observed decrease in PL emission intensity has been ascribed to the increase of electron-phonon scattering rate with the increase in temperature. The values of electron-phonon coupling strength (S) for synthesized samples have been evaluated by theoretical fitting of the experimentally obtained PL emission data. Smaller sized triangular nanoparticle has been found to exhibit stronger temperature dependence in PL emission, which strongly suggests that smaller sized triangular silver nanostructures have better electron-phonon coupling.

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Section: Resultsmentioning

confidence: 99%

Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

et al. 2015

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“…Tsuji et al [38] provided new information on the growth of decahedrons and icosahedrons in DMF through a stepwise route. Lu et al [39] realized the finely tuned size of nanoplates from 20 to 50 nm by varying the molar ratio of PVP/DMF. In DMF the main products are triangular and hexagonal plates, decahedra and icosahedra having (111) facets, as shown in Figure 1, while in EG the typical products are cubes, right-triangular, bipyramids and pentagonal rods and wires [9–11,14–16,20,40,41] having (100) facets, as shown in Figure 2.…”

Section: Double Reductant Methodsmentioning

confidence: 99%

Synthesis of Silver Nanostructures by Multistep Methods

Zhang

Song

Zhang

et al. 2014

Sensors

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The shape of plasmonic nanostructures such as silver and gold is vital to their physical and chemical properties and potential applications. Recently, preparation of complex nanostructures with rich function by chemical multistep methods is the hotspot of research. In this review we introduce three typical multistep methods to prepare silver nanostructures with well-controlled shapes, including the double reductant method, etching technique and construction of core-shell nanostructures. The growth mechanism of double the reductant method is that different favorable facets of silver nanocrystals are produced in different reductants, which can be used to prepare complex nanostructures such as nanoflags with ultranarrow resonant band bandwidth or some silver nanostructures which are difficult to prepare using other methods. The etching technique can selectively remove nanoparticles to achieve the aim of shape control and is widely used for the synthesis of nanoflowers and hollow nanostructures. Construction of core-shell nanostructures is another tool to control shape and size. The three methods can not only prepare various silver nanostructures with well-controlled shapes, which exhibit unique optical properties, such as strong surface-enhanced Raman scattering (SERS) signal and localized surface plasmon resonance (LSPR) effect, but also have potential application in many areas.

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“…The spectra of all samples exhibit an absorption peak at around 400 nm. The previous studies [11,12] reported that Ag nanoparticles having spherical shape exhibited UV-Vis absorption peaks in the range of 390 -450 nm depending on the uniformity and size of the particles (Mie theory). Thus, the results indicate the presence of Ag nanoparticles in the samples.…”

Section: The Formation Of Ag Seed Particlesmentioning

confidence: 99%

“…The recent researches on Ag nanoflakes dispersed in solution reported that the UV-Vis spectra of the samples exhibited three absorption peaks, the first peak at around 325 -350 nm, the second peak at around 400 -450 nm, and the third peak at the longest wavelength [12,14,15]. These peaks were attributed to outer quadrupole resonance, outer dipole resonance, and inner dipole resonance, respectively [11,12,14,15]. However, some other researches proposed different reasons for the appearance of the first and second peaks [16,17].…”

Section: Effects Of Ph On the Formation Of The Ag Nanoflakesmentioning

confidence: 99%

Synthesis of Functional Nanoparticles for Application in Inkjet Printing

Trinh

2021

ETJ

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Ag nanoflakes were synthesized by chemical reduction method using cetyltrimethylammonium bromide (CTAB) as a surfactant. The results of transmission electron microscope (TEM) analysis, ultraviolet-visible spectroscopic (UV-Vis) analysis, X-ray diffraction (XRD) analysis showed that the obtained Ag nanoflakes had size of ~50 – 60 nm, thickness of 16 nm, with flake shape reached 96 %. The particles crystallized in cubic structure of Ag. The Ag nanoflakes synthesized with pH = 4 were dispersed stably after 60 days from synthesis. The properties of the obtained Ag nanoflakes were suitable for using them as conductive particles in fabrication of functional inks for electrohydrodynamic printing technique.

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Investigation of shape controlled silver nanoplates by a solvothermal process

Cited by 29 publications

References 17 publications

Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

Synthesis of Silver Nanostructures by Multistep Methods

Synthesis of Functional Nanoparticles for Application in Inkjet Printing

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