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The Paper's
Abstract of The 3rd
International Conference on Imaging Science and Hardcopy |
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Study
on Electrophotographic Performance of the Binary Bisazo-triazo Composites |
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May
26-29,1998
Chongqing China
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Zong
Hanxing Huang
Zhongping
Pan Jinhong
Cai Guoqiang
Yu Qingsen
Department of chemistry, Zhejiang University Hangzhou,310027, China
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Abstract: |
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Double-layered photoreceptors, containing the Bisazo- An-As and
Triazo-AS-SW binary composites as charge
generating materials, and DEH AS charge transporting material, are
prepared, and their visible absorption spectra and electrophotographic
performance are investigated. The experimental results indicake that the
photosensitivity of Bisazo- An-As with very weak photosensitivity is
increased evidently, when Triazo-AS-SW with excellent photosensitivity is
added into. With the addition of Triazo-AS-SW, the photosensitivity of the
binary composites gradually approaches to that of Triazo-AS-SW. By UV-Vis
spectra research, it is concluded that the photosensitivity relates to the
visible absorption spectra. When Triazo-AS-SW is adulterated into Bisazo-
An-As, two charges will possibly take place:ⅰ)Excited Triazo-AS-SW combining with Bisazo- An-As, the
exciplex (Triazo-AS-SW+·Bisazo- An-AS-)
is produced, and the exciplex decomposes into free electron and hole.ⅱ) The excited Triazo-AS-SW decomposes into free
electron and hole, and the electron is trapped by Bisazo- An-As under the
action of the electric field. Bisazo- An-As with the negative charge is
excited to produce free electron and hole. Due to the influence of the
above charges, the photosensitivity of the binary composites is superior
to that value obtained by the simple linear addition of their own
photosensitivity values.
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中国复印科学与工程学会
Reprographic
Scientists and Engineers Society of China
7 Chang-Tu Rd.Tianjin300131,China Tel:(22)26669189 Fax: (22)26669189
E-mail: rsesc@public.tpt.tj.cn
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