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Amorphous Ge-As-Te thin films prepared by Pulsed Laser Deposition – A photostability study
Authors: Bouška Marek | Hawlová Petra | Nazabal Virginie | Beneš Ludvík | Němec Petr
Year: 2015
Type of publication: článek ve sborníku
Name of source: PHOTOPTICS 2015, Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology, Volume 1
Publisher name: SciTePress - Science and Technology Publications
Place: Porto
Page from-to: 103-107
Titles:
Language Name Abstract Keywords
cze Amorfní Ge-As-Te tenké filmy připravené PLD- Studium fotostability Příprava tenkých filmů Ge-As-Te pomocí PLD a studium jejich fotostability. Fotostabilita připravených i ozářených vrstev byla studována pomocí spektroskopické elipsometrie. amorfní chalkogenidy; tenké filmy; Ge-As-Te; fotostabilita
eng Amorphous Ge-As-Te thin films prepared by Pulsed Laser Deposition – A photostability study Pulsed laser deposition was used for the fabrication of amorphous thin films from Ge-As-Te system with the aim to study their intrinsic photostability. Photostability of prepared layers was studied using spectroscopic ellipsometry within as-deposited as well as relaxed layers. For irradiation, laser sources operating at three energies (1.17, 0.92 and 0.8 eV) in band gap region of the studied materials were employed. The lowest values of photorefraction (refractive index changes) accompanied with lowest changes of band gap values present Ge20As20Te60 thin films, which are therefore considered as the layers with highest photostability, especially in relaxed state. Amorphous Chalcogenide; Thin Films; Ge-As-Te; Photostability