Electrophotography - xerography

Dual-layer systems have the advantages of high sensitivity, long process lifetime, and a reduction in the hysteresis of latent image formation. The transport layer requires the displacement of either electrons or holes. Since most trans- 

Numerous compounds have been tested and applied commercially as charge-generation and charge-transport materials, as can best be seen from the book by Borsenberger and Weiss [4]. 

The very high quantum yield is interpreted in terms of exciton dissociation at the interface between the two layers and injection of practically all of the holes into the charge-transport layer. 

F = 3xl0 Vcm ( ) and F = 0.8xl0 Vcm (A). See text for system characterization. Adapted from Williams [8] with permission from John Wiley. Sons, Inc. 

Chart 6.1 Chemical structures of the triphenylamine triazo pigment AZO-3 and the triarylamine derivative MAPS. 

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Electrophotography is the correct technical name for the non-impact electrostatic printing processes, which include photocopying, also commonly called xerography because of the company that developed the original systems (Xerox), and laser printing. ... 

Photoconducting polymers such as poly (JV-vinylcarbazole) are used in xerography or electrophotography, since the photogenerated charge carriers can travel through the polymer film with relative facility before getting immobilized or trapped (Roberts,... 

The photocopiers with which we are all familiar are based on a process known as either electrophotography or xerography. The latter is derived from the... 

In the forty-odd years since Chester Carlson s initial inventions, electrophotography has evolved pretty much in the direction envisioned by him (1 ) For conventional xerography, the image is formed by the deposition of a black thermoplastic powder on the surface of a photoconductive dielectric surface bearing an electrostatic charge pattern. The powder is transferred to plain paper and fused to it to form the final image. This is the process used in the ubiquitous xerographic office copier (2). 

Electrophotography, more commonly known as xerography, is based on the formation of a latent electrostatic image on an imaging surface by first uniformly electrostatically charging the surface of... 

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