Structural and defect changes of hydrogenated SiGe films due to annealing up to 600degC

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Authors

SLÁDEK Petr SŤAHEL Pavel BURŠÍKOVÁ Vilma

Year of publication 2009
Type Conference abstract
MU Faculty or unit

Faculty of Science

Citation
Description In order to better understand the effects of the hydrogen incorporation on the defects and the disorder in the un-doped nano/microcrystalline SiGe:H, we performed a comparative study on samples deposited under different plasma conditions. With variation of the pressure, we were able to change the structure of SiGe:H films. We have used the combination of the infrared spectroscopy, CPM, PDS and thermal desorption measurements to study the thermal dependence of defect density, disorder, as well as hydrogen concentration. The film mechanical properties were test by depth sensing indentation technique. The results showing a different hydrogen bonding with the change of deposition conditions are interpreted as a whole by terms of the specific local hydrogen bond-ing environment, related to different growth mechanism.
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