Abstract
Optical and photoelectrical studies were performed on octane-1,8-dithiol cross-linked fullerene films, with supported gold nanoparticles (C60-DT-Au). According to high-resolution transmission electron microscopy observations, the average size of obtained gold nanoparticles was about 5 nm, and the shape was spherical. The comparative investigation of optical properties of pristine and cross-linked with octane-1,8-dithiol C60 films, decorated with gold nanoparticles, found the difference in the extinction coefficient spectra, which was observed also in the photocurrent spectra of barrier heterostructure Au/C60/Si. The analysis of dark current-voltage characteristics for Au/C60/Si heterostructures showed that the model for them includes the barrier at the C60/Si interface and internal barriers in the C60 layer, caused by the trapping centers. The hopping mechanism of the current transport in the C60 layer was supplemented with the Poole-Frenkel emission process on these centers, with the barrier height greater for the fullerene C60 film cross-linked with octane-1,8-dithiol.
Originalsprache | englisch |
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Seiten (von - bis) | 1737-1743 |
Seitenumfang | 7 |
Fachzeitschrift | Thin Solid Films |
Jahrgang | 518 |
Ausgabenummer | 6 |
DOIs | |
Publikationsstatus | Veröffentlicht - 1 Jan. 2010 |
Extern publiziert | Ja |
ASJC Scopus subject areas
- Elektronische, optische und magnetische Materialien
- Oberflächen und Grenzflächen
- Oberflächen, Beschichtungen und Folien
- Metalle und Legierungen
- Werkstoffchemie