Determination of size and density of embedded Ge nanocrystals in SiO2 by scanning force microscopy using a tomographic approach
Determination of size and density of embedded Ge nanocrystals in SiO2 by scanning force microscopy using a tomographic approach
Beyer, R.; von Borany, J.
Germanium nanocrystals in silicondioxide were studied by atomic force microscopy (AFM) in order to reveal their size, density and distribution. The generation of the nanocrystals was accomplished by Ge+ ion implantation into a 100 nm silicondioxide layer and subsequent annealing at high temperatures in an inert atmosphere. Rutherford backscattering spectroscopy was applied in order to reveal the Ge distribution after implantation and annealing, and the formation of the nanocrystals was proven by transmission electron microscopy. The oxide layer was gradually etched in order to uncover the nanocrystals located at different depth positions within the SiO2 layer. Subsequently, the unveiled surfaces were examined by AFM in order to determine the size and density of the exposed nanocrystals. A correlation between the nanocrystal properties and the Ge implantation dose was corroborated.
Keywords: nanocrystals; silicondioxide; scanning force microscopy
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
Related publications
- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 16696) publication
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Lecture (Conference)
14th European Conference on Applications of Surface and Interface Analysis (ECASIA'11), 06.09.2011, Cardiff, Wales -
Surface and Interface Analysis 44(2012), 1018-1021
DOI: 10.1002/sia.5007
Cited 1 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-16696