Publication detail

Optical properties of silver doped amorphous films of composition Ge(28)S(72) and Ge(22)Ga(6)S(72)

Year: 2011

Type of publication: článek v odborném periodiku

Name of source: Journal of Optoelectronics and Advanced Materials

Publisher name: National Institute of Optoelectronics

Place: Bukurešť

Page from-to: 1442-1446

Titles:

Language	Name	Abstract	Keywords
cze	Optické vlastnosti stříbrem dopovaných amorfonních filmů Ge(28)S(72) and Ge(22)Ga(6)S(72)	Práce se zabývá třístupńovou přípravou tenkých vrstev Ge(28)S(72) a Ge(22)Ga(6)S(72) pulzní laserovou depozicí, které byly obohaceny stříbrem.	Ge-S;optické vlastnosti;Ag-doped
eng	Optical properties of silver doped amorphous films of composition Ge(28)S(72) and Ge(22)Ga(6)S(72)	Thin films of Ge(28)S(72) and Ge(22)Ga(6)S(72) prepared by pulsed laser deposition were doped with silver in three steps. Each step includes deposition of a 10 nm thick silver thin film by thermal evaporation and its dissolution into chalcogenide thin films by photodiffusion. Undoped and doped thin films were characterized by using a Spectral ellipsometer VASE, a UV/VIS spectrometer, X-Ray diffraction analysis and Energy dispersive X-Ray analysis but only optical characterization is present in this paper. Substitution of Ge by atoms Ga leads into increasing of the refractive index and the red shift of short-wavelength cut-off edge. Adding silver leads to another increase of the refractive index and the red shift of short-wavelength cut-off edge. Due to high thickness of chalcogenide thin films (at least 500 nm) such amount of silver was not sufficient for creating homogenous thin films and thin films with a graded refractive index were created	Ge-S;Optical properties;Ag-doped

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