Grain Morphology and Thickness Study Of Gold Film On Polished Ceramics Using Equipment From NanoSurf

Topics Covered

Background

Topographical Image of Ceramics and Gold Film

Surface Roughness

Grain Size

Background

These measurements were done on the standard sample holder. Pointprobe Sensors from Nanosurf were used without special damping. Half the tip apex angle is 20-25°.

Topographical Image of Ceramics and Gold Film

The topographical image in Figure 1 was taken at the step between the ceramics and the gold film. (left square ceramics, right square gold). In the section (taken along the black arrow in the topographical image) no step is evident. The distance between the lowest and the highest value is approx. 300 nm.

AZoNano - The A to Z of Nanotechnology - Ceramic grains between 2-4 m in size can be seen. With AFM it's easy to study the form of the individual ceramic grains. On the left ceramic grains are clearly visible. On the right the grains of the ceramics can still be be made out through the gold film. 40x40µm image, z-range: 300nm and the corresponding cross section.

Figure 1. Ceramic grains between 2-4 m in size can be seen. With AFM it's easy to study the form of the individual ceramic grains. On the left ceramic grains are clearly visible. On the right the grains of the ceramics can still be be made out through the gold film. 40x40µm image, z-range: 300nm and the corresponding cross section.

Surface Roughness

The surface roughness of the whole surface, inset left and inset right is revealed as 43nm, 36nm, 55nm, respectively. Thus we can see that the surface roughness of the gold film is 50% higher than the uncovered ceramics. The step height can not be measured because the ceramics is too rough.

Grain Size

Ceramic Al2O3 grains between 2-4µm in size can be seen. With AFM it's easy to study the form of the individual ceramic grains. On the left ceramic grains are clearly visible. On the right the grains of the ceramics can still be be made out through the gold film.

AZoNano - The A to Z of Nanotechnology - 40x40µm image, z-range: 300nm

Figure 2. 40x40µm image, z-range: 300nm

Source: Nanosurf

For more information on this source please visit Nanosurf

 

Date Added: Feb 21, 2007 | Updated: Jun 11, 2013
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