Design, Fabrication Andapplicationofvisible Light Photosensitive Imaging Materials

In recent years, with the rapid development of science and technology, imaging materials and technology has made a substantial progress,which has been completed by the traditional methods of chemical imaging to the transformation of digital technology. But the advanced equipment and technology also has some disadvantages:the recorded information is easy to be tampered with, and in the field of information security, digital electronic devices will suffer from a lot of restrictions. In view of the above problems, we hope to use the traditional methods of chemical imaging, to complete the rapid acquisition, recording and imaging of the information in the visible light.This paper mainly studies two kinds of imaging methods:one-step imaging method and two-step imaging method. One-step imaging method includes thioxanthone derivative photosensitive initiator system and bromine compound photosensitive system; Two-step imaging method includes diazonium salt photosensitive system and photopolymeric imaging system. The systems initiated the chemical reactions with dye molecules or oligomers through the emulsion in the light of the cracking or hydrogen, so as to realize the acquisition and recording of information template. In this paper, four kinds of sensitizers for photosensitive systems were investigated, on range of sensitivity, photolysis rate and Moore ceiling light coefficients controlled by the imaging experiments under different conditions, by the results,we found the best group allocation ratio, production process and application conditions for every system.In the two imaging methods, due to the excellent photosensitivity of thioxanthone derivatives and bromine compounds, the systems can achieve timely imaging upon the visible light irradiation after the mixed with dyes; and diazonium salt and photopolymerization, due to the relatively low sensitizer photosensitive, need a post-processing to get the desired information after the appearance of the target images.In this paper, the photographic performance, imaging method and image definition of the four kinds of imaging system compared. The optimal experimental conditions and suitable application fields for each system are found. In summary,all of the four imaging systems studied in this papercan achieve the collecting, recording and imaging of the information rapidly in the visible light.