Single-layer Organic Compound Photoconductor Industrialization Of Key Technologies

The paper is involved of three key technologies about the industrialization of single-layered organic photoconductor(SLPR), namely, preparation of organic photoconductive materials including phthalocyanine composite, processing of SLPR, and fabrication devices.The photoconductivity of a single-layered organic photoconductor comprising phthalocyanine composites was investigated. Positive (InClPc/H2Pc) and linear addition (TiOPc/CuPc) and negative (TiOPc/InClPc) photosensitivity effects were observed compared with pure phthalocyanine. The electronic and aggregate structures of the composites were characterized by UV/Vis absorption spectra, X-ray powder diffraction pattern, XPS and UPS.Small amount of 2,4,7-trinitryl-fluoenone (TNF) could improve the photoconductivity and further TNF leaded to poor photoconductivity. DSC, UV/Vis, and cyclic voltammograms studies showed that the decline of photoconductivity was due to the formation of the charge transfer complex of TNF-BAH.Chloroindium phthalocyanine (InClPc) nanoparticles were prepared by dissolving InClPc in aprotic solvent/Lewis acid. The photoconductivity of InClPc nanoparticles in single-layered photoconductor was higher than that of bulk InClPc. InClPc nanoparticles were characterized by UV/Vis absorption , X-rays diffraction pattern, and TEM. The results showed that InClPc nanoparticles were ball-shaped with a size of 25-50nm, that their diffraction peaks become broader, and that the blue-shift in UV/Vis absorptin was observed.The solvent, polymer matrix, CGM (charge generation material ) /Polymer that influenced the photoconductivity, and the coating velocity, viscosity of photoconductive material that influenced the photoconductive coating thickness, were also discussed.The design and fabrication of coating machine for industrialization of single-layered organic photoconductor were studied.