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Preparation and photoconductivity of PVP-CoPc self-assembled film

Published online by Cambridge University Press:  31 January 2011

Min-Min Shi ,
Mang Wang  and
Hong-Zheng Chen
Min-Min Shi
Affiliation:
Institute of Polymer Science and Materials, Zhejiang University, Hangzhou, 310027, China and State Key Lab of Silicon Materials, Hangzhou 310027, China
Mang Wang
Affiliation:
Institute of Polymer Science and Materials, Zhejiang University, Hangzhou, 310027, China and State Key Lab of Silicon Materials, Hangzhou 310027, China
Hong-Zheng Chen*
Affiliation:
Institute of Polymer Science and Materials, Zhejiang University, Hangzhou, 310027, China and State Key Lab of Silicon Materials, Hangzhou 310027, China
*
a)Address all correspondence to this author.
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Abstract

Through the complexation of cobalt phthalocyanine (CoPc) and a film of poly[4-vinyl- pyridine] (PVP) polarized by an electric field, a new type of preferentially oriented self-assembled film (PVP-CoPc) was obtained. The characterization of the film by differential scanning calorimetry (DSC), angle-dependent x-ray photoelectron spectroscopy (XPS), and Fourier transform infrared reflection absorption spectroscopy (FTIR-RAS) revealed that the planes of pyridine rings oriented perpendicular to the film surface, while the planes of phthalocyanine rings were oriented parallel with, and coordinated on, the film surface. Photoconductivity study showed that the photoconductivities of the photoreceptors (PR's) made from the PVP-CoPc self-assembled film were much better than those from CoPc alone. These changes were ascribed to the charge transfer and the unique and ordered structure of PVP-CoPc self-assembled film.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 12 , December 1998 , pp. 3550 - 3554
Copyright
Copyright © Materials Research Society 1998

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