Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 354, Issue 52-54, Pages 5421-5424Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2008.09.006
Keywords
Laser deposition L105; Multilayers M360; Diffusion D210; Amorphous films A1955
Funding
- Ministry of Education, Youth and Sports of the Czech Republic [MSM 0021627501, LC523]
- Czech Science Foundation [104/08/0229]
- Hungarian OTKA [T046758]
- NKTH/OTKA [67685]
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Cyclic Pulsed laser deposition technique was used for the fabrication of chalcogenide GeSe/GeS nanomultilayers with similar to 10 nm modulation period. Low-angle X-ray diffraction technique revealed good periodicity of prepared multilayered materials. The films are sensitive to annealing and illumination by 532 nm laser; both processes lead to refractive index decrease and blue shift of the short-wavelength absorption edge, respectively, connected with interdiffusion processes between the individual layers. Light-induced bleaching of the films is accompanied by giant volume-changes (up to 10% expansion) as observed by atomic force microscopy. These can be used for direct surface patterning and relief formation. (C) 2008 Elsevier B.V. All rights reserved.
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