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Production method of single-layer organic photocon

A technology for a photoconductive device and a manufacturing method, which is applied in optics, instruments, electrical recording techniques, etc., can solve problems such as failure to be widely used, low photosensitivity, and difficult control of process conditions.

Inactive Publication Date: 2003-03-05
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, organic photoconductive drums have high requirements on coating thickness and uniformity. If the thickness ratio of each coating is not uniform, the photoelectric performance of the photoconductive drum will be affected. Therefore, the more coating times, the more difficult the process conditions are to control.
In order to reduce the number of times of coating, people have carried out the research and development of single-layer structure photoconductive devices: Wang Yanqiao et al. However, due to its low photosensitivity and the certain toxicity of the materials used, it has not been popularized and used; Zhang Chunxiu et al. (Photosensitive Science and Chemistry, 1998, 16, 343) reported the three-component doping of Y-TiOPc / ETM / HTM Single-layer organic photoconductors, in which ETM still uses toxic TNF, which is not conducive to environmental protection

Method used

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  • Production method of single-layer organic photocon
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  • Production method of single-layer organic photocon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1. Polycarbonate was dissolved in 1,2-dichloroethane solvent to prepare a film-forming agent solution. The mass concentration of the solution was 10%. Titanium phthalocyanine, p-diethylaminobenzaldehyde diphenyl The hydrazone and the film-forming agent solution are mixed in a mass ratio of 1:40:6000, put into a glass container, and reinforced glass balls with a diameter of 4 mm are added in a ratio of mixture: glass ball mass ratio of 1:2, and dispersed with a ball mill for 24 The coating solution was prepared within hours, and the size of the phthalocyanine oxyphthalide aggregates dispersed in the solution was 5-20 nm. figure 1 STM photographs of phthalocyanine oxyphthalide aggregates are shown. The coating solution was coated on the aluminum plate substrate pre-coated with pyruvate by the blade coating method, and dried at 90° C. for 1 hour. objects have charge transfer properties, figure 2 It is a schematic diagram of the structure of the device, in the fi...

Embodiment 2

[0018] Embodiment 2, polystyrene is dissolved in tetrahydrofuran solvent, prepare film-forming agent solution, its solution mass concentration is 5%, and the solution of vanadyl phthalocyanine, p-diethylaminobenzaldehyde diphenylhydrazone and film-forming agent solution is pressed according to After mixing in a mass ratio of 1:100:4000, the mixture was put into a glass container and dispersed with an ultrasonic generator for 24 hours to prepare a coating liquid. The coating solution was coated on an aluminum plate substrate pre-coated with halloysite by a blade coating method, and dried at 60° C. for 3 hours to prepare a single-layer organic photoconductive device with a thickness of 40 m.

Embodiment 3

[0019] Embodiment 3, dissolve polyvinyl butyral in cyclohexanone, prepare film-forming agent solution, and its solution mass concentration is 7%, mix titanium phthalocyanine, p-diethylaminobenzaldehyde diphenylhydrazone and film-forming agent After the solution is mixed in a mass ratio of 1:70:8000, it is put into a glass container, and reinforced glass balls with a diameter of 1 mm are added in a ratio of mixture: glass ball mass ratio of 1:2, and dispersed with a ball mill for 24 hours to make the solution. coating liquid. The coating solution was coated on an aluminum plate substrate pre-coated with halloysite by knife coating, and dried at 80° C. for 2 hours to prepare a single-layer organic photoconductive device with a thickness of 20 m.

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Abstract

The invention discloses a method of making the single-layer organic photocom. It mixes the carrier-producing materials, the carrier (positive hole)-transmitting materials and the especially selected macromolecule film-building agent in the appropriate solution in a certain proportion, and after the mixture is dispersed by the ultrasonic or nball-milling method, the obtained smearing liquid is spread on the aluminium base board with pre-smearing insulating layer by the means of rotary spreading or smearing, which forms the single-layer photon compound with the electric charge-transfer changer.The photocon can carry through positive and negative charger and discharge, and its main photoelectric-performance index can meet the applied requirement of the organic photocon gums of the electrostatic duplicator and the laser printer.

Description

technical field [0001] The invention belongs to a manufacturing method of an organic photoconductive device, in particular to a preparation method of a single-layer organic photoconductive device. Background technique [0002] Since Calson invented dry electrophotography using anthracene as a photoconductive material in the 1930s (U.S. Patent 2,221,776 (1940)), photoconductive materials have been rapidly developed as information recording materials. In today's information society era, office automation has reached a considerable level, the use of laser printers and electrostatic copiers is becoming more and more popular, and the use of organic photoconductive drums as the core components of laser printers and electrostatic copiers is also increasing. Therefore, the position of the organic photoconductive drum and the organic photoconductive material constituting it is also becoming more and more important. [0003] Photoconductive materials can be divided into two categorie...

Claims

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Application Information

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IPC IPC(8): G03G5/06
Inventor 魏先福杨联明蒋克健阎建民邸振文王艳乔
Owner INST OF CHEM CHINESE ACAD OF SCI
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