32 resultados para Si(111) substrate


Relevância:

20.00% 20.00%

Publicador:

Resumo:

The structure and optical properties of thin films based on C60 materials are studied. Reproducible vacuum method of thin fullerene films production with Cd impurity on Si, glass and mica surfaces is developed. Surface morphology of the films are investigated by AFM and SEM methods. The ab initio quantum - chemical calculations of the geometry, total energy and excited energy states of complex fullerene- cadmium telluride supramolecules are performed. Photoluminescence spectra of composite thin films based on C60 before and after X-ray irradiation were measured. The intensity of additional peaks is defined as the charge composition due to the type of substrate. These results are interpreted as an appearance of the dipole-allowed transitions in the fullerene excited singlet states spectrum cause of an interference with cadmium telluride. X-ray irradiated films were investigated, and additional peaks in photoluminescence spectra were detected. These peaks appear as a result of molecular complexes formation from C60CdTe mixture and dimerization of the films. Density functional B3LYP quantum-chemical calculations for C60CdTe, molecular complexes, (C60)2 and C120O dimers were performed to elucidate some experimental results.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invokaatio: D.A.G.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invokaatio: D.A.G.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invokaatio: D.A.G.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invokaatio: D.A:G.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invokaatio: D.A.G.