Precursor stacked film

Characteristics of Stacked Precursor Films The new Cu/Sn/Cu/Zn precursors have good lateral uniformity, and the layers consist of small compact grains. The EDX maps in Figure 1.23 show the macroscopic uniformity of the precursor stacks over a 1.4cm area, in terms of the compositional ratios Cu/(Zn + Sn) and Zn/Sn. Both show only small variations, significantly better than those achieved previously [122). In the example shown, the Cu/(Zn + Sn) ratio was 0.80 0.02 and the Zn/... 

Characterization of Annealed CZTS Films Sulfurization of the Cu/Sn/Cu/Zn precursor stacks gave better microscopic uniformity than the previous Cu/Sn/Zn stacks. An SEM image and EDX maps of the Sn and Zn distributions in a film produced from the Cu/Sn/Cu/Zn precursor stack is shown in Figure 1.26. A comparison with Figure 1.23 shows a much more uniform distribution of the elements for the film formed from the four-layer stack precursor. The high degree... 

Additionally, thin-film layers of the catalyst may be deposited on to the surface of the micro channels by sputtering [73] or CVD [63], In the latter case, aluminum isopropoxide, Al[(CH3)2CHO]3, was used as alumina precursor, which was passed through a ready-stacked reactor at 300 °C for 1 h in a flow containing nitrogen and oxygen in addition. The flow direction was subsequently changed and the procedure repeated. 

Sonobe et al. reported the preparation of carbon materials using the interlamellar spaces of montmorillonite as template and polyacrylonitrile, poly(furfuryl alcohol) and poly(vinyl acetate) as carbon precur-They found that carbon precursors were easily graphitised and the obtained carbon materials were two-dimensional film-like graphite, consisting of highly oriented layer planes, which were stacked thin and wide. " Kyotani et al. produced carbons from poly(furfuryl... 

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