Dissolved And Nano Film Fabricated Of Copper Pthalocyanine And Perylene Diimide

In this article, by testing the UV-vis absorption spectra of copper pthalocyanine (CuPc) and perylene diimide (PTCDI), studied the solubility of CuPc and PTCDI in different solvents, and the effect of various amounts of trifluoroacetic acid (TFAA) to them. UV-vis specrum shows that the trifluoroacetic acid is good to the dissolving of CuPc and PTCDI, because TFAA and these two materials make to be protonic, which can increase the solubility of them. CuPc and PTCDI have different solubilities in different organic solvents. CuPc is dissolved well in nitromethane (NME) and chloroform (CHCl3), while PTCDI is more easily dissolved in CHCl3.Basied on the reaserch of solubility, the CuPc and PTCDI films are fabricated with different electro-chemical deposition conditions. When the solvent is NME, the CuPc films are flower shape structure, the basic compose is nanowires. If the solvent is chloroform, the CuPc films are formed by spindle crystals, the diameter is 100nm, and the length is 500nm. The UV-vis spectrums of the two kinds of films show that they have the same crystal form(α-CuPc). Using the scanning electron microscopy (SEM) observes the surface morphology of CuPc films. The result showed that:The amount of TFAA and CuPc has great influence to the surface morphology, while the deposition time and voltage impacts are feeble.The SEM pictures of PTCDI show that:The deposit voltage can effect the crystal growth direction, the basic compose of films is the prismatic nanocrystal, the crystal is perpendicular to the basement and its diameter is 100nm. Changing the deposited voltage, time and solution concentration can get PTCDI films with good surface morphology, the crystals in these films are homogeneously distributed, aligned and compact. The composit films of CuPc and PTCDI, not only have the morphological characters of CuPc, but also have the morphological characters of PTCDI.