Atomic force microscopy pretreatment

N. Flilal, H. Al-Zoubi, A. Mohammad, A. Abu-Arabi, A comprehensive review of nanofiltration membranes treatment, pretreatment, modelling and atomic force microscopy, Desalination 170 (2004) 281-308. 

Figures 33.13 shows the topography of the two plasma polymer layers deposited under different conditions on a polished iron surface. Both films show a similar topography as observed by atomic force microscopy, but the film deposited on O2 plasma-pretreated polished iron showed a little more grainy surface than (Ar + H2) plasma-pretreated sample. In Figure 33.14 the root mean square value is plotted against the film thickness. The grainy surface (O2 plasma pretreated), which showed a higher deposition rate, increased the roughness as the thickness increased as expected.

The surface of the pentacene film was examined by atomic force microscopy (AFM). It exhibits crystallites with a diameter of about 250 run in the transistor channel. On the gold surface of the drain and source contacts, the dimensions are twice the size as on silicon dioxide. In comparison with growth studies in [18] where the surface was pretreated by an adhesion promoter, the presented pentacene film consists of very small crystallites. 

Most methods have typically been applied to the investigation of dried nanocellulose dimensions, although a study was conducted by Paakko et al. [47] where the size and size-distribution of enzymatically pretreated nanocellulose fibrils in a suspension were studied using cryotransmission electron microscopy, atomic force microscopy, and cross-polarization/magic-angle... 

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