The change in the interface of conjugated polymer/nano-particle composite with aluminum electrode has been studied. From the X-ray photoelectron spectroscopic studies, it was revealed that there was no significant difference of interfacial reaction between poly(p-phenylenevinylene) (PPV) and PPV/SiO 2 nano-composite films. However, interfacial reaction of PPV/SiO 2 nano-composite film with Al was saturated promptly because of more residues, as compared with that of PPV. Enhancement of current density by nano-particles has been observed, and it could be understood by morphology effect on field strength at the film-electrode interface that PPV/SiO 2 nano-composite film shows rougher surface than that of PPV film. The change in the effective thickness of the film induced by the thickness variation of the film due to surface morphology effects on the distribution of effective field strength applied to the films.
Bibliographical noteFunding Information:
The authors acknowledge the support from Korea Institute of Science and Technology Evaluation and Planning, Grant No. M1-0214-00-0228.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films