## 4 Discussion  
All compositions on the various carbon substrates presented in Figures 1-4 included graphitized carbon black \"PureBlack@\" and graphite \"KGPS-1\" as the permanent components, Table 2, column 3. In accordance with [33], graphitized carbon black \"PureBlack@\" is a nanostructured carbon material with a high internal surface and good conductivity. Graphite \"KGPS-1\" is a micro-structured flake graphite with very good conductivity and  
Figure 6: (**a**) Current-voltage characteristics (CVCs) of 10 min deposited sulfacyl sodium on carbon substrate 1 in the dark and under illumination; (**b,c**) dimensionless sensitivities (DS) of CVCs. Figure 7: (**a**) Current-voltage characteristics (CVCs) of 10 min-deposited sulfacyl sodium on carbon substrate 2 in the dark and under illumination; (**b,c**) dimensionless sensitivities (DS) of CVCs. an average particle size of 2 microns. As shown in [34], the combination of both these materials ensures a synergistic effect and high conductivity. It supplies electromagnetic shielding due to great differences in morphology and the existence of tremendous points of phase boundaries. A particular feature of substrate 1 is the presence of activated carbon as a variable component. Activated carbon has a very high internal surface area of the order of 1500-2000 square meters per gram, which can promote the active formations of crystallization centers. Its electronic and optical images show the roughest morphology, Table 2, columns 4, 5. Most likely, big clusters were formed by micro-structured flake graphite in Graphite \"KGPS-1\". A differential feature of substrate 2 is the presence of magnetite [35] as a variable component, Table 2 column 3. This substrate is not as rough as substrate 1, Table 2, column 4, and its optical image shows some crystal aggregates, Table 2, column 5. A distinctive feature of substrate 3 is the presence of the carbon nanotube as a variable component. Structural features and high electrical conductivity of carbon nanotubes are widely known. The presence of carbon nanotubes can also promote nucleation and the formation of organic structures on the carbon composite. As it can be observed, there are some filaments, Table 2, column 5. This particular substrate demonstrates almost ten time higher resistivity at about 26.4 Ohm. Finally, a characteristic feature of substrate 4 is the use of the DBH-010 graphite as a variable component, which has a \"needle\"-like structure [36]. There are big crystals that form big druse, Table 2, column 5. Changes in surface morphology, depending on deposition time for three types of organics (sodium sulfacyl, clonidine, and vitamin B12) and four carbon substrates, are shown in Figures 2-4. The classic genesis of surface morphology is demonstrated by sodium sulfacyl on substrate 1, as can be observed in Figure 3a-e. [2]. At the beginning of a thin film formation (10 min deposition, thickness of about 100 nm), Figure 3a, the film contour repeats the morphology of the substrate. At the next stage of the film growth (20-60 min deposition), circular-type cells are formed with an increase in the thickness of the organic layer, Figure 3b-d. Actually, this is the net-like structure of morphology. Finally (after 90 min of deposition), the shape of a spherulite is formed, Figure 3e. According to previous studies [2, 25], a net-like form morphology was recognized as optimal from the point of view of the functionality of hybrids and for the high efficiency of solar energy performances in organic hybrids. Substrates 2-4 set slightly different dynamics of sodium sulfacyl film formation, as one can see from Figure 3f-j,k-o,p-t. Thus, substrate 2 shows a lower deposition rate and, in fact, the morphology formed in 90 min, Figure 3j, is similar to the morphology formed in 60 min for substrate 1, Figure 3d. There are fractal features for substrate 3 and 4, shown in Figure 3n-o,s-t, when along with the thickening of the walls of the main cells, new cell networks were formed.