Xerographic properties of metal/metal-free phthalocyanine composites in a double-layered photoconductor

Jong Dae Lee; Hong Bae Kim

Korean Journal of Chemical Engineering, Vol.26, No.3, 673-678, May, 2009

DOI10.1007/s11814-009-0112-z Export Citation

Xerographic properties of metal/metal-free phthalocyanine composites in a double-layered photoconductor

Jong Dae Lee^†, and Hong Bae Kim¹

Department of Chemical Engineering, Chungbuk National University, Cheongju 361-763, Korea
¹Neo Photocon, 416-5, GeunChang-ri, Baekam-myun, CheIn-gu, Yongin-shi, Gyeonggi-do 449-861, Korea

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The electrophotographic properties of a negatively charged double-layered photoconductor that consisted of y-type metal phthalocyanine (TiOPc) and x-type metal-free phthalocyanine (H2Pc) composites were studied. The undercoating layer (UCL) was fabricated by a dip-coating method with Al2O3 and polyamide, and the charge transport layer (CTL) was prepared from N,N'-Bis-(3-methylpenyl)-N,N"-bis-(phenyl)-benzidine (TPD), polycarbonate (PC), and polyester (PE). In the charge generation layer (CGL), the dispersion state becomes more homogeneous with increasing amounts of non-metal phthalocyanine (H2Pc). The electrophotographic properties of the photoconductor were obtained by using photo-induced discharge curves (PIDC) of charge acceptance, dark decay, photosensitivity, and photofatigue. It was found that the initial charge potential was not dependent on the compositional ratio of the charge generating material. However, the dark decaying rates and the photosensitivity were proportional to the content of TiOPc in the organic photoconductors.

Keywords:Photoconductor;Phthalocyanine;Dip-coating;Charge Generation Layer;Charge Transport Layer

[References]

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[Related Articles]

[1] Thompson BJ, Optical engineering, Rochester, New York (1998)

[2] Thompson BJ, Organic photoreceptors for xerography, Rochester, New York (1998)

[3] Chen HZ, Jiang KJ, Wang M, J of Photochemistry and Photobiology A, 120, 211 (1999)

[4] Arslano lu Y, Hamuryudan E, Dyes and Pigments, 75, 150 (2007)

[5] Arlauskas K, Gaidelis V, Genevicius K, Juka G Synthetic, Synthetic Metals, 109, 101 (2000)

[6] Cao J, Sun JZ, Wang M, Chen HZ, Zhou XQ, Wang DJ, Thin Solid Films, 429(1-2), 152 (2003)

[7] Narushima K, Kontani T, Egerton RF, Urao R, Takeuchi M, Applied Surface Science, 113, 326 (1997)

[8] O’Regan MB, Borsenberger PM, Magin EH, Zubil T, J. of IS&T, 40, 1 (1996)

[9] Adam D, Romhildt W, Haarer D, Jpn. J. Apple. Phys., 35, 1826 (1996)

[10] Tsuzuki T, Kuwabara Y, Noma N, Shirota Y, Willis MR, Jpn. J. Appl. Phys., 35, L447 (1996)

[11] Tsuchiya S, Omote A, Murakami M, Yoshimura S, J of IS&T, 39, 294 (1995)

[12] Takehiko I, Organic non-silver hydride photonic materials, J. Soc. Publi. Center, Tokyo (1992)

[13] Dekker M, Organic photoreceptor for imaging system, ed. By Thompson BJ, Eastman Kodak Company Rochester, New York (1993)

[14] Weiss DS, Chen DA, J of IS&T, 39, 425 (1995)

[15] Pacansky J, Coufal HC, Brown DW, J. Photochem., 37, 293 (1987)

[16] Pacansky J, Waltman RJ, Grygier R, Cox R, Chem. Mater., 3, 454 (1991)