Thin Conducting Polymer Films: Effect of Thickness on Wetting Behavior of Polyaniline Ultra Thin Films

1998 ◽  
Vol 543 ◽  
Author(s):  
J. Li ◽  
T. H. Hill ◽  
R. V. Gregory ◽  
D. Perahial
Keyword(s):  
Thin Films ◽  
Surface Structure ◽  
Oxidation State ◽  
Neutron Reflectivity ◽  
Wetting Properties ◽  
Thin Region ◽  
Spherical Domains ◽  
Molecular Layers ◽  
Conducting Polymer Films ◽  
Polymer Thickness

AbstractWetting properties and surface structure of polyaniline (PANI) thin films were studied as a function of the polymer thickness, using AFM and neutron reflectivity. Increasing the oxidation state as well as polymer thickness was found to increase the tendency of the polymer to form polycrystalline films. Three main regions with characteristic behavior were observed: ultra thin films of the order of several molecular layers, an intermediate thickness film of several molecular layers to ∼150nm, and films thicker than 150nm. In the ultra thin region the polymer formed nano-scale spherical domains. In the intermediate one, the films tend to be continuous and amorphous. In the thick films, crystallinity was observed.

Wetting Of Ion Containg Polymers: Micelles Versus Molecular Absorption

1998 ◽  
Vol 543 ◽  
Author(s):  
T. A. Hill ◽  
X. Jiao ◽  
C. W. Martin ◽  
D. D. Demarteau ◽  
D. Perahia
Keyword(s):  
Surface Tension ◽  
Light Scattering ◽  
Chemical Composition ◽  
Surface Structure ◽  
Polymer Surface ◽  
Neutron Reflectivity ◽  
Molecular Absorption ◽  
Wetting Behavior ◽  
Wetting Properties ◽  
Carbon Backbone

AbstractThe wetting behavior of perfluorinated ionomers has been investigated as a function of polymer-surface interaction, the nature of the counter-ion and the structure of the polymer in the solvent from which it has been cast onto the surface. Two different ion-containing polymers, with a per-fluoro-carbon backbone were studied. They differ in the chemical composition and the polarity of their side chains. AFM results together with neutron reflectivity, light scattering and surface tension measurements had shown that the structure of the polymer in the parent solution has a profound effect on the wetting properties as well as the surface structure of the polymers.

Retention of Surface Structure Causes Lower Density in Atomic Layer Deposition of Amorphous Titanium Oxide Thin Films

2021 ◽  
Author(s):  
Benjamin Rich ◽  
Yael Etinger-Geller ◽  
G. Ciatto ◽  
A Katsman ◽  
Boaz Pokroy
Keyword(s):  
Thin Films ◽  
Atomic Layer Deposition ◽  
Surface Structure ◽  
Titanium Oxide ◽  
Size Effects ◽  
Atomic Layer ◽  
Tio2 Films ◽  
Structural Modifications ◽  
Layer Deposition ◽  
Amorphous Tio2

Size effects and structural modifications in amorphous TiO2 films deposited by atomic layer deposition (ALD) were investigated. As with the previously investigated ALD-deposited Al2O3 system we found that the film’s...

Neutron reflectivity study of thin films of hydrogen-bonded polymer blends: influence of annealing on composition profile

1992 ◽  
Vol 25 (10) ◽  
pp. 2619-2623 ◽  
Author(s):  
Lei Jong ◽  
Eli M. Pearce ◽  
T. K. Kwei ◽  
W. A. Hamilton ◽  
G. S. Smith ◽  
...  
Keyword(s):  
Thin Films ◽  
Polymer Blends ◽  
Composition Profile ◽  
Neutron Reflectivity ◽  
Hydrogen Bonded

Epitaxial growth and surface structure of cuprous halide thin films

2000 ◽  
Vol 18 (2) ◽  
pp. 536-542 ◽  
Author(s):  
Tomoko Wake ◽  
Koichiro Saiki ◽  
Atsushi Koma
Keyword(s):  
Thin Films ◽  
Surface Structure ◽  
Epitaxial Growth

scholarly journals Adhesion and Atomic Structures of Gold on Ceria Nanostructures: The Role of Surface Structure and Oxidation State of Ceria Supports

Nano Letters ◽  
2015 ◽  
Vol 15 (8) ◽  
pp. 5375-5381 ◽  
Author(s):  
Yuyuan Lin ◽  
Zili Wu ◽  
Jianguo Wen ◽  
Kunlun Ding ◽  
Xiaoyun Yang ◽  
...  
Keyword(s):  
Surface Structure ◽  
Oxidation State ◽  
Atomic Structures

scholarly journals Copper nanoparticles synthesis in hybrid mesoporous thin films: Controlling oxidation state and catalytic performance through pore chemistry

2019 ◽  
Vol 471 ◽  
pp. 862-868 ◽  
Author(s):  
Rusbel Coneo Rodríguez ◽  
Luis Yate ◽  
Emerson Coy ◽  
Ángel M. Martínez-Villacorta ◽  
Andrea V. Bordoni ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxidation State ◽  
Copper Nanoparticles ◽  
Catalytic Performance ◽  
Mesoporous Thin Films ◽  
Nanoparticles Synthesis

Neutron reflectivity investigation of the effects of harsh environments on Ta2N thin films

1999 ◽  
Vol 346 (1-2) ◽  
pp. 116-119 ◽  
Author(s):  
Thomas Rieker ◽  
Paul Hubbard ◽  
Jaroslaw Majewski ◽  
Gregory Smith ◽  
Neville Moody
Keyword(s):  
Thin Films ◽  
Harsh Environments ◽  
Neutron Reflectivity

Surface structure of epitaxial Pd2Si thin films

1982 ◽  
Vol 40 (2) ◽  
pp. 138-140 ◽  
Author(s):  
Kenjiro Oura ◽  
Satoshi Okada ◽  
Yozo Kishikawa ◽  
Teruo Hanawa
Keyword(s):  
Thin Films ◽  
Surface Structure
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