Photoconduction Mechanism of Monolayer Organic Photoreceptor for Positive Charging Xerography Using Perylene Pigment

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  • NAKAZAWA Toru
    Photoreceptor R&D Lab., Department of Technology, Mita Industrial Co., Ltd.
  • KAWAHARA Akihiko
    Photoreceptor R&D Lab., Department of Technology, Mita Industrial Co., Ltd.
  • MIZUTA Yasufumi
    Photoreceptor R&D Lab., Department of Technology, Mita Industrial Co., Ltd.
  • MIYAMOTO Eiichi
    Photoreceptor R&D Lab., Department of Technology, Mita Industrial Co., Ltd.
  • MUTOH Nariaki
    Photoreceptor R&D Lab., Department of Technology, Mita Industrial Co., Ltd.
  • OOKI Shigeru
    Dainichi-Seika Color&Chemicals MFG.Co., Ltd.
  • HOSODA Toru
    Dainichi-Seika Color&Chemicals MFG.Co., Ltd.

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Other Title
  • ペリレン顔料を用いた正帯電型単層有機感光体の光電機構
  • ペリレン ガンリョウ オ モチイタ セイタイデンガタ タンソウ ユウキ カンコ

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Monolayer organic photoreceptor for positive charging xerography using perylene pigment as a carrier generation materia1,shows different xerographic properties depending on its crystallinity. We investigated various effects of the pigments on the overall photosensitivity of the film by photoinduced discharge of the surface potential applied on the film. Results show that high photosensitivity of the monolayer organic photoreceptor can not be achieved when the film has low electron transport property, even when the charge generation efficiency in the film is high enough. Thus, the photosensitivity of the film which has dispersed perylene pigment in a hole transport matrix, was found to be in close connection with the electron transport property of the film.

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