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AFM topographies of densely packed nanoparticles: a quick way to determine the lateral size distribution by autocorrelation function analysis
- 1.0383750 - FZÚ 2013 RIV NL eng J - Journal Article
Fekete, Ladislav - Kůsová, Kateřina - Petrák, Václav - Kratochvílová, Irena
AFM topographies of densely packed nanoparticles: a quick way to determine the lateral size distribution by autocorrelation function analysis.
Journal of Nanoparticle Research. Roč. 14, č. 8 (2012), s. 1-10. ISSN 1388-0764. E-ISSN 1572-896X
R&D Projects: GA AV ČR KAN200100801; GA TA ČR TA01011165; GA ČR(CZ) GAP304/10/1951; GA ČR GPP204/12/P235
Institutional research plan: CEZ:AV0Z10100520
Keywords : lateral grain size distribution * AFM * autocorrelation function * nanodiamond
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.175, year: 2012
The distribution of sizes is one of the basic characteristics of nanoparticles. Here, we propose a novel way to determine the lateral distribution of sizes from AFM topographies. Our algorithm is based on the autocorrelation function and can be applied both on topographies containing spatially separated and densely packed nanoparticles as well as on topographies of polycrystalline films. As no manual treatment is required, this algorithm can be easily automatable for batch processing. The algorithm works in principle with any kind of spatially mapped information (AFM current maps, optical microscope images, etc.), and as such has no size limitations. However, in the case of AFM topographies, the tip/sample convolution effects will be the factor limiting the smallest size to which the algorithm is applicable. Here, we demonstrate the usefulness of this algorithm on objects with sizes ranging between 20 nm and 1.5 μm.
Permanent Link: http://hdl.handle.net/11104/0213595
Number of the records: 1