Abstract: The object of the present invention is to provide an endless flexible single-layer positively charged organic photosensitive body and an image forming device using the same, wherein: in an image forming device that is small, high speed and capable of color output, even when tension and compression forces, which are generated by having the photosensitive body stretched between a plurality of cylindrical rollers, are repeatedly applied to the belt photosensitive body, no problems arise in the electrophotography properties of the photosensitive layer.

Abstract: An electrophotographic photoconductor has a conductive substrate and a photosensitive layer on the substrate.

Abstract: A photoconductor includes a conductive substrate, an undercoat layer on the substrate, and at least one photosensitive layer on the undercoat layer. The radius of vacancy type defects in each of the photosensitive layer and in the undercoat layer is o.4 nm or less. In one embodiment, the radius of vacancy type defects is measured by a positron annihilation method.

Abstract: An electrophotographic photosensitive body has a charge generating layer and a charge transporting layer on a conductive substrate. The charge transporting layer contains a zinc carboxylate compound expressed by the following General Formula (I):(Ar--COO.sup.-)(R--COO.sup.-)Zn.sup.2+ [I]wherein:Ar is a substituted or unsubstituted aryl group andR is a substituted or unsubstituted alkenyl groupA method for the manufacture of the electrophotographic photosensitive body is also disclosed.

Abstract: A photoconductor for electrophotography includes a distyryl compound of the general formula (I) as a charge generation material and a bisazo compound of the general formula (II) as a charge transport material.

Abstract: A thin-film solar cell device in which multiple series-connected cell elements are formed in units which can then be readily joined together in either a series or parallel connection. At least two terminal electrodes are provided on the opposite side of the insulating substrate of each unit, connected to the respective end electrodes of the elements at the extreme ends on the obverse surface of the substrate. This may be done either by bending the flexible substrate around at opposite ends at angles of 180.degree., or by forming through-holes in the substrate at opposite ends and filling the through-holes with a conductive material. Units can then be joined merely by overlapping their edge portions and connecting them with a conductive adhesive.