Visible photoluminescence of gold nanoparticles prepared by sputter deposition technique in a room-temperature ionic liquid

Iimori, Toshifumi; Hatakeyama, Yutaka; Nishikawa, Keiko; Kato, Masako; Ohta, Nobuhiro

doi:10.1016/j.cplett.2013.09.010

Cited by 13 publications

(18 citation statements)

References 19 publications

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“…Also, tannic acid is often used in gold nanoparticles synthesis at room temperature;87 it acts both as reducing and stabilizing agent, and by controlling pH, size‐controlled 2 to 10 nm nanoparticles can be achieved 88. Yet another way relies on the use of ionic liquids, such as 1‐butyl‐3‐methylimidazolium hexafluorophosphate, by using a sputtering deposition method at room temperature; this way, 2 nm stable and photoluminescent NPs have been obtained 89…”

Section: Other Synthesis Factorsmentioning

confidence: 99%

Nonfunctionalized Gold Nanoparticles: Synthetic Routes and Synthesis Condition Dependence

Jimenez‐Ruiz

Pérez‐Tejeda

Grueso

et al. 2015

Chemistry A European J

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Since Faraday first described gold sol synthesis, synthetic routes to nanoparticles, as well as their applications, have experienced a huge growth. Variations in synthesis conditions such as pH, temperature, reduction, and the stabilizing agent used will determine the morphology, size, monodispersity, and stability of nanoparticles obtained, allowing for modulation of their physical and chemical properties. Although many studies have been made about the synthesis and characterization of individual nanosystems of interest, to our knowledge the common, general traits that all those synthesis share have not been previously compiled. In this review, we aim to offer a global vision of some of the most relevant synthetic procedures reported up to date, with a special focus on nonfunctionalized gold nanoparticle synthetic routes in aqueous media, and to display a broad overview of the influence that synthesis conditions have on the shape, stability, and reactivity of nanoparticle systems.

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Section: Other Synthesis Factorsmentioning

confidence: 99%

Nonfunctionalized Gold Nanoparticles: Synthetic Routes and Synthesis Condition Dependence

Jimenez‐Ruiz

Pérez‐Tejeda

Grueso

et al. 2015

Chemistry A European J

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“…5(b) has a broad peak that indicates white light in the visible region and was observed both in the silica aerogel and the aerogel nanocomposite [19]. Moreover, a fluorescence peak due to the Au nanoclusters was observed at 440 nm for the aerogel nanocomposite [20], although the Au content was very small. From both the optical transmittance and photoluminescence results, it was concluded that the characteristics of Au nanoparticles were completely maintained in the aerogel nanocomposite.…”

Section: Optical Properties Of Au Nanoparticle-silica Aerogel Nanocommentioning

confidence: 99%

Preparation and evaluation of Au nanoparticle–silica aerogel nanocomposite

Katagiri

Ishikawa

Adachi

et al. 2015

Journal of Asian Ceramic Societies

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A Au nanoparticle-silica aerogel nanocomposite was prepared by the gelling of a tetramethyl orthosilicate (TMOS)/ethanol solution together with Au nanoparticles and drying the wet gel in supercritical carbon dioxide. The aerogel nanocomposite contained Au nanoparticles at a concentration of 0.268 ppm. The bulk density, porosity, and specific surface area of the obtained nanocomposite were 0.126 g/cm 3 , 94%, and 890 m 2 /g, respectively. The nanocomposite was reddish-violet in color and transparent, and had a relative permittivity of approximately 6 with a dielectric loss of ca. 1 × 10 −3 in the range of 10 MHz to 1 GHz.

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“…[1][2][3][4][5][6][7][8][9][10][11][12] The liquid matrix serves as a tool to manipulate the formation and growth, characteristics, and properties of nanoparticles. [13][14][15][16][17][18][19][20][21][22][23][24][25][26] Because sputtering occurs under vacuum conditions, some liquids with low vapor pressures have been used as the matrix, for example, liquid polymer/monomer (silicone oil, 1 polyethyleneglycol (PEG), 6,22,23 glycerol, 9 pentaerythritol ethoxylate (PEEL), 14 pentaerythritol tetrakis(3-mercaptopropionate) (PEMP) 15 ), ionic liquid, [2][3]8,10,[16][17][18][19][20][21]24 vegetable oil, 5,7 and molten salt. 4 The method allows for obtaining not only metal, 1,…”

Section: Introductionmentioning

confidence: 99%

“…4 The method allows for obtaining not only metal, 1,[5][6][7][8][9][10][11] oxide, 14,21 and alloy 3,[12][13][14][15][16][17][18][19][20][22][23][24] nanoparticles but also small nanoclusters. 4,15,25,26 The studies in this field reveal important roles of the liquid matrix in the growth behavior, size control, and colloidal stability of the sputtered nanoparticles. [1][2][3][4][5][6][13][14][15][16][17][18][19][24][25][26][27][28][29][30][31][32]…”

Section: Introductionmentioning

confidence: 99%

“…4,15,25,26 The studies in this field reveal important roles of the liquid matrix in the growth behavior, size control, and colloidal stability of the sputtered nanoparticles. [1][2][3][4][5][6][13][14][15][16][17][18][19][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] Evaluating the impact of the physicochemical properties of the liquids on the particle size helped understand the particle formation. 6,18,19,[27][28][29][30][31][32][33][34][35][36][37][38] For example, when Au was sputtered onto ionic liquids, the particle nucleation could o...…”

Section: Introductionmentioning

confidence: 99%

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Synergistic Effect of the Oleic Acid and Oleylamine Mixed-Liquid Matrix on Particle Size and Stability of Sputtered Metal Nanoparticles

Nguyen

Wongrujipairoj

Tsukamoto

et al. 2020

ACS Sustainable Chem. Eng.

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This research investigates the impact of mixing oleylamine and oleic acid as the liquid matrix for sputtering of metal nanoparticles and the mixed liquid composition on the particle size, uniformity, and their colloidal and oxidation stability. The case study was conducted for Au and Cu which are noble and non-noble metal, respectively. The results reveal that the mixed liquids are more effective in producing smaller and more uniform metal nanoparticles. Smallest Au nanoparticles with highly colloidal stability over a year were obtained with equal volume of OA and OAm. OA/OAm 1/1 (v/v) also exhibited the best protection effect from oxidation for Cu nanoparticles. The results can be attributed to the improved viscosity and synergistic protecting capability of the mixed liquids compared with the single component liquids.

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Visible photoluminescence of gold nanoparticles prepared by sputter deposition technique in a room-temperature ionic liquid

Cited by 13 publications

References 19 publications

Nonfunctionalized Gold Nanoparticles: Synthetic Routes and Synthesis Condition Dependence

Nonfunctionalized Gold Nanoparticles: Synthetic Routes and Synthesis Condition Dependence

Preparation and evaluation of Au nanoparticle–silica aerogel nanocomposite

Synergistic Effect of the Oleic Acid and Oleylamine Mixed-Liquid Matrix on Particle Size and Stability of Sputtered Metal Nanoparticles

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