Molecular wires and gold nanoparticles as molewares for the molecular scale electronics

Lee, Changjin; Kang, Yongku; Lee, Kyehyung; Kim, Sung Rim; Won, Do-Jae; Noh, Jae Sung; Shin, Hoon Kyu; Song, Chung Keun; Kwon, Young Soo; So, Hye‐Mi; Kim, Jinhee

doi:10.1016/s1567-1739(01)00094-3

Cited by 15 publications

(6 citation statements)

References 16 publications

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“…[1] The wealth of size-, shape-, and environment-dependent optical proper-ties of gold nanoparticles [2] contributes to the choice of gold in nanotechnological applications in catalysis, chemical and biological sensors, actuators, optical coatings and electronic devices. [3][4][5][6] Colloidal gold has a much longer history than that of any other metal. Systematic research started with Faradays ground-breaking work in 1857 about colloidal gold solutions which describes the "finely divided metallic state" of gold.…”

Section: Introductionmentioning

confidence: 99%

“…[28,38,40] Yet, for most applications of metal nanoparticles it is necessary to transfer them from the IL synthesis medium to organic or aqueous solvents or onto surfaces. [3][4][5][6] Also, films of metals, alloys or semiconductors can be electrodeposited from ionic liquids. [43] Here we report the preparation of gold nanoparticles (Au-NPs) by thermal decomposition and reduction of Au(CO)Cl or KAuCl 4 in the presence of n-butylimidazole in different fluorine-containing ILs.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Stabilization, Functionalization and, DFT Calculations of Gold Nanoparticles in Fluorous Phases (PTFE and Ionic Liquids)

Redel¹,

Walter²,

Thomann³

et al. 2009

Chemistry A European J

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Gold nanoparticles (Au-NPs) were reproducibly obtained by thermal, photolytic, or microwave-assisted decomposition/reduction under argon from Au(CO)Cl or KAuCl(4) in the presence of n-butylimidazol dispersed in the ionic liquids (ILs) BMIm(+)BF(4)(-), BMIm(+)OTf(-), or BtMA(+)NTf(2)(-) (BMIm(+) = n-butylmethylimidazolium, BtMA(+) = n-butyltrimethylammonium, OTf(-) = (-)O(3)SCF(3), NTf(2)(-) = (-)N(O(2)SCF(3))(2)). The ultra small and uniform nanoparticles of about 1-2 nm diameter were produced in BMIm(+)BF(4)(-) and increased in size with the molecular volume of the ionic liquid anion used in BMIm(+)OTf(-) and BtMA(+)NTf(2)(-). Under argon the Au-NP/IL dispersion is stable without any additional stabilizers or capping molecules. From the ionic liquids, the gold nanoparticles can be functionalized with organic thiol ligands, transferred, and stabilized in different polar and nonpolar organic solvents. Au-NPs can also be brought onto and stabilized by interaction with a polytetrafluoroethylene (PTFE, Teflon) surface. Density functional theory (DFT) calculations favor interactions between IL anions instead of IL cations. This suggests a AuF interaction and anionic Au(n) stabilization in fluorine-containing ILs. The (19)F NMR signal in BMIm(+)BF(4)(-) shows a small Au-NP concentration-dependent shift. Characterization of the dispersed and deposited gold nanoparticles was done by transmission electron microscopy (TEM/HRTEM), transmission electron diffraction (TED), dynamic light scattering (DLS), UV/Vis absorbance spectroscopy, scanning electron microscopy (SEM), electron spin resonance (ESR), and electron probe micro analyses (EPM, SEM/EDX).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis, Stabilization, Functionalization and, DFT Calculations of Gold Nanoparticles in Fluorous Phases (PTFE and Ionic Liquids)

Redel¹,

Walter²,

Thomann³

et al. 2009

Chemistry A European J

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“…The reduction of the sizes in microelectronics in call for the use of Nano-lithographic technology that induces exponential cost increases in the design of the manufacturing facility. To have Nano-structures in large amounts, molecules can be synthesized in a precisely regulated way, using molecules as electronic components in the Nanoelectronic circuitry can be a promising alternative to producing high-density chips at more affordable prices [53]. For research on potential developments such as Nanoelectronics or biomedical applications, ligand-stabilized (Au NPs) are of high importance.…”

Section: Electronicsmentioning

confidence: 99%

The Physical Properties and Applications of Gold Nanoparticles (Au NPs): Review

Al-Wardy¹,

Rahi²

2021

sjpas

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Nanoparticles of gold that for years have been recognized are the concept of an increasingly rising reports number and of promising for electronic, optical, magnetic, biomedical and catalytic applications in century of 21st. Because of Nanoparticles of gold stability, an interest in such research is a reason for performing the current work. There are various types of AuNPs: Zero-dimensional AuNps: quantum dots, spherical nanoparticles. AuNPs as 1-dimensional: nanowires, nano-rods, nano-belts, nanotubes. AuNPs as 2-dimensional: nano-plates of gold, nano-shell and, AuNPs as 3 dimensional: nano tadpoles of gold, nano- dumbbells of gold (AuNDs), AuNPs being spread, for example, nano-dendrites of gold, nano-pods, and nano-stars. Au NPs, in the field of medicine are investigated for several applications include vectors of drug delivery, agents of contrast, and therapy of localized heat, biomarkers of ultra-sensitive and more. AuNPs are very attractive material for biosensor, chemosensory, genosensor and immunosensor production

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“…In recent years, single-mode data storage ͑e.g., optical and electrical storage͒ based on one of the physical channel has been widely investigated. [1][2][3][4][5][6][7][8] When two different physical channels of the material are simultaneously involved, multimode data storage could be expected, which would not only greatly increase the information density to satisfy future largecapacity storage, but also be promising to develop multifunctionality on a single device. [9][10][11] So far, however, there have been few reports on multimode data storage simultaneously in a single stable material.…”

Section: Stable and Reversible Optoelectrical Dual-mode Data Storage mentioning

confidence: 99%

Stable and reversible optoelectrical dual-mode data storage based on a ferrocenlylspiropyran molecule

Ma¹,

Niu²,

Wen³

et al. 2009

Appl. Phys. Lett.

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Molecular wires and gold nanoparticles as molewares for the molecular scale electronics

Cited by 15 publications

References 16 publications

Synthesis, Stabilization, Functionalization and, DFT Calculations of Gold Nanoparticles in Fluorous Phases (PTFE and Ionic Liquids)

Synthesis, Stabilization, Functionalization and, DFT Calculations of Gold Nanoparticles in Fluorous Phases (PTFE and Ionic Liquids)

The Physical Properties and Applications of Gold Nanoparticles (Au NPs): Review

Stable and reversible optoelectrical dual-mode data storage based on a ferrocenlylspiropyran molecule

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