Back to Search
Start Over
Investigations on the Thermal Stability of Fullerene-Based (Ag-C) Nanocomposite Thin Films.
- Source :
-
Plasmonics . Dec2017, Vol. 12 Issue 6, p1701-1708. 8p. - Publication Year :
- 2017
-
Abstract
- Fullerene-based bi-functional nanocomposite thin film (Ag nanoparticles embedded in fullerene C matrix) is synthesized by thermal co-deposition method. Thermal stability of Ag-C nanocomposite is investigated by annealing the nanocomposite thin film at different temperatures from 80 to 350 °C for 30 min. Optical and structural properties of nanocomposite thin film with respect to high temperature are studied by UV-visible spectroscopy and x-ray diffraction, respectively. Transmission electron microscopy is performed to observe the temperature-dependent size evolution of Ag nanoparticles in fullerene C matrix. A large growth of Ag nanoparticles is observed with temperature especially above 200 °C due to enhanced diffusion of Ag in fullerene C at higher temperature and Ostwald ripening. The properties of metal-fullerene nanocomposite is not significantly affected up to a temperature of 150 °C. With a further increase in temperature, a major blue shift of ~ 33 nm in SPR wavelength is seen at a temperature of 300 °C due to the thermal induced structural transformation of fullerene C matrix into amorphous carbon. A very large-sized Ag nanoparticle with a wide size distribution varying from 27.8 ± 0.6 to 330.0 ± 4.5 nm is seen at 350 °C and due to which, a red shift of ~ 16 nm is obtained at this temperature. This study throws light on the thermal stability of the devices based on metal-fullerene bi-functional nanocomposite. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15571955
- Volume :
- 12
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Plasmonics
- Publication Type :
- Academic Journal
- Accession number :
- 126055932
- Full Text :
- https://doi.org/10.1007/s11468-016-0436-6