Metal/polymer interfaces with designed morphologies

Zaporojtchenko, V.; Strunskus, Thomas; Behnke, K.; Bechtolsheim, C. v.; Kiene, M.; Faupel, Franz

doi:10.1163/156856100742609

Cited by 98 publications

(69 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When using vapor phase deposition techniques (such as evaporation or sputtering) to growth metal NPs or films on polymeric surfaces, noble metals like Au and Ag grow, during the initial stage, as spherical clusters on polymer surfaces [13,[21][22][23][24][25][26][27][28][29][30][31][32], i.e., according to a Volmer-Weber [33] growth mode. This is due to a higher (two orders of magnitude) cohesive energy of metals with respect to the polymers' cohesive energy.…”

Section: Thin Metal Film Fabrication On Polymeric Surfaces By Vapor Pmentioning

confidence: 99%

“…This is due to a higher (two orders of magnitude) cohesive energy of metals with respect to the polymers' cohesive energy. Moreover, the interaction between noble metals and polymers is very weak compared to the metal-metal binding forces [5][6][7][8][30][31][32]. So, noble metals do not wet, in general, polymer surfaces.…”

Section: Thin Metal Film Fabrication On Polymeric Surfaces By Vapor Pmentioning

confidence: 99%

“…The critical metal film thicknesses separating the growth stages are dependent on the specific metal and polymer characteristics (such as surface free energies) and on their specific interaction (such as adhesion energy). Generally, the metal morphology evolution on a non-wetting substrate can be studied by the interrupted coalescence model (ICM) [21,[34][35][36][37], the kinetic freezing model (KFM) [28][29][30][31][32][33][34][35][36][37][38][39][40], and the Vincent model [40,41]. Following the ICM model, at the initial stages of growth metal NPs grow on the surface due to homogeneous and heterogeneous nucleation [30][31][32][33].…”

Section: Thin Metal Film Fabrication On Polymeric Surfaces By Vapor Pmentioning

confidence: 99%

See 2 more Smart Citations

Metal-Polymer Nanocomposites: (Co-)Evaporation/(Co)Sputtering Approaches and Electrical Properties

Torrisi

Ruffino

2015

Coatings

View full text Add to dashboard Cite

Abstract:In this review, we discuss the basic concepts related to (co-)evaporation and (co)sputtering based fabrication methods and the electrical properties of polymer-metal nanocomposite films. Within the organic-inorganic hybrid nanocomposites research framework, the field related to metal-polymer nanocomposites is attracting much interest. In fact, it is opening pathways for engineering flexible composites that exhibit advantageous electrical, optical, or mechanical properties. The metal-polymer nanocomposites research field is, now, a wide, complex, and important part of the nanotechnology revolution. So, with this review we aim, starting from the discussion of specific cases, to focus our attention on the basic microscopic mechanisms and processes and the general concepts suitable for the interpretation of material properties and structure-property correlations. The review aims, in addition, to provide a comprehensive schematization of the main technological applications currently in development worldwide.

show abstract

Section: Thin Metal Film Fabrication On Polymeric Surfaces By Vapor Pmentioning

confidence: 99%

Section: Thin Metal Film Fabrication On Polymeric Surfaces By Vapor Pmentioning

confidence: 99%

Section: Thin Metal Film Fabrication On Polymeric Surfaces By Vapor Pmentioning

confidence: 99%

See 1 more Smart Citation

Metal-Polymer Nanocomposites: (Co-)Evaporation/(Co)Sputtering Approaches and Electrical Properties

Torrisi

Ruffino

2015

Coatings

View full text Add to dashboard Cite

show abstract

“…According to the nucleation and growth model of metal atoms on polymeric surfaces shown in our previous work [22], metal atoms initially adsorb on the polymeric surface until they meet with other atoms on their diffusing paths, and then random or preferred nucleation at defects starts. Initially, the growth of metal nanoparticles on polymeric surface starts by forming small nuclei at certain sites which grow by the continued deposition of the metal via direct impingement and surface diffusion.…”

Section: Au-ag Alloy Np Systemsmentioning

confidence: 99%

Effect of gold alloying on stability of silver nanoparticles and control of silver ion release from vapor-deposited Ag–Au/polytetrafluoroethylene nanocomposites

et al. 2012

Self Cite

View full text Add to dashboard Cite

In the present study, nanocomposites containing Ag-Au alloy nanoparticle ensembles with various compositions on polytetrafluoroethylene were prepared by physical vapor deposition. After a certain time of immersion of the samples in water, oxidation and dissolution of the Ag nanoparticles (AgNPs) occurred, and changes in the morphology, optical properties and composition of the nanocomposites were examined using transmission electron microscopy, ultraviolet-visible spectroscopy and X-ray photoelectron spectroscopy (XPS), respectively. The composition-dependence and the time-dependence of the silver ion release were studied, and the concentration of the silver ions in water was detected using inductively coupled plasma mass spectrometry. The results indicate that with increasing gold fraction in the AuAg alloy nanoparticles, a strong improvement of the oxidation resistance of the AgNPs occurs. The dissolution of Ag is rapid at the first contact of the sample with water until a saturation state is reached. XPS synchrotron measurements with different excitation energies show that the depletion of Ag from the nanoparticles does not lead to the formation of a Au-rich shell and that the atomic mobility is high enough in the small nanoparticles of about 5 nm average size to equilibrate any concentration gradient.

show abstract

“…In this regard, Faupel et al prepared Ni, Cu, Ag, and Au nanoparticles on polymers (polyimide, polystyrene, Teflon, PMDA-ODA) with different compositions [16][17][18][19]. Synthesis of metallic nanoparticles within polymeric media using photochemical means is an attractive route due to the relative simplicity of the technique and the possibility to combine with widely used lithographic methods [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Au and Au–Pt nanoparticles within PMMA matrix using UV and X-ray irradiation

Ozkaraoglu

Tunç

Süzer

2009

Polymer

View full text Add to dashboard Cite

a b s t r a c tAu and Au-Pt alloy nanoparticles are prepared and patterned at room temperature within the PMMA polymer matrix by the action of 254 nm UV light or X-rays. The polymer matrix enables us to entangle the kinetics of the photochemical reduction from the nucleation and growth processes, when monitored by UV-vis spectroscopy. Accordingly, increase of the temperature to 50 C of the reaction medium increases the nucleation and growth rates of the nanoparticle formation by more than one order of magnitude, due to enhanced diffusion and nucleation at the higher temperature, but has no effect on the photochemical reduction process. Presence of Pt ions also increases the same rate, but by a factor two only. Similar photochemical reduction and particle growth take also place within the PMMA matrix, when these metal ions are subjected to prolonged exposure to X-rays, as evidenced by XPS analysis. Both angle-resolved and charge-contrast measurements using XPS reveal that the resultant Au and Pt species are in close proximity to each other, indicating the Au-Pt alloy formation to be the most likely case.

show abstract

Metal/polymer interfaces with designed morphologies

Cited by 98 publications

References 20 publications

Metal-Polymer Nanocomposites: (Co-)Evaporation/(Co)Sputtering Approaches and Electrical Properties

Metal-Polymer Nanocomposites: (Co-)Evaporation/(Co)Sputtering Approaches and Electrical Properties

Effect of gold alloying on stability of silver nanoparticles and control of silver ion release from vapor-deposited Ag–Au/polytetrafluoroethylene nanocomposites

Preparation of Au and Au–Pt nanoparticles within PMMA matrix using UV and X-ray irradiation

Contact Info

Product

Resources

About