Gold-polyaniline composites: Part II. Effects of nanometer sized particles

Journal Article · Thu Sep 01 00:00:00 EDT 2005 · Physical Chemistry Chemical Physics. PCCP, 7(20):3619-3625

DOI:https://doi.org/10.1039/b507099f· OSTI ID:15020820

Smith, Jon A; Josowicz, Mira A; Engelhard, Mark H; Baer, Donald R; Janata, Jiri

The amount of electronic charge transferred between gold particles and polyaniline depends not only on the electron affinity of the two materials but also on the size of the gold particles. As measured by X-ray photoelectron spectroscopy, for particles < 5 nm the binding energy of the electrons is size dependent. This nano-effect has its origin in the electrostatics of particles. It is demonstrated as a measurable shift of the binding energy of the Au4f7/2 photoelectrons emitted from Au particles embedded in a polyaniline matrix. Gold nanoparticle size was evaluated by high resolution transmission electron microscopy.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 15020820
• Report Number(s): PNNL-SA-44410; 10602; KP1704020; TRN: US200521%%271
• Journal Information: Physical Chemistry Chemical Physics. PCCP, 7(20):3619-3625, Vol. 7, Issue 20
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANILINE
GOLD
POLYMERS
COMPOSITE MATERIALS
ELECTRON TRANSFER
AFFINITY
BINDING ENERGY
NANOSTRUCTURES
Environmental Molecular Sciences Laboratory