Improved organophotoreceptors have:
(a) a charge transport compound having the formula
1
where R
1
is hydrogen, a branched or linear alkyl group, a branched or linear unsaturated hydrocarbon group, an ether group, or an aryl group; and
R
2
and R
3
independently have a structure of:
2
in which Ar is selected form the group consisting of;
3
R
4
is a hydrogen, or an aromatic group;
(b) a charge generating compound; and
(c) an electrically conductive substrate.
Organophotoreceptors for electrophotography featuring novel charge transport compounds
申请人:Imation Corp.
公开号:US06340548B1
公开(公告)日:2002-01-22
Organic photoreceptors that include a charge transport compound, a charge generating compound, and an electroconductive support in which the charge transport compound is a novel aryl hydrazone-functional carbazole compound.
Fullerene–hydrazone dyads have been synthesized using the Confalone reaction followed by condensation with phenylhydrazines. Room‐temperature xerographic time‐of‐flight, ionization potential, and cyclic voltammetry measurements indicate that these narrow‐band‐gap (Eg<1.5 eV), ambipolar charge‐transporting dyads with balanced hole‐ and electron mobilities, which operate in air, are attractive materials
富勒烯-二联体是通过Confalone反应合成,然后与苯肼缩合而合成的。室温静电复印飞行时间,电离电势和循环伏安法测量表明,这些窄带隙(E g <1.5 eV),双极性电荷传输二元体具有平衡的空穴和电子迁移率,可在空气中运行是用于各种光电应用的有吸引力的材料。
New pyran-based molecules as both n- and p-type sensitizers in semi-transparent Dye Sensitized Solar Cells
efficiency significantly increases for all the dyes sensitized devices, up to a maximum of 2.1%. The dyes were successfully employed the as photosensitizers in p-type DSSC, obtaining PCEs approaching 0.1%, a promising result in the field on NiO-based devices. More remarkably, as far as we are aware, this is the first paper in which a single series of dyes is effectively employed as sensitizers in both
Two iridium(III) soft salts based on ion-paired dinuclear cationic and mononuclear anionic complexes were designed and investigated as phosphorescent emitters for solution processed OLEDs. New dinuclear cationiccomplexes were prepared with two different bridging ligands, a carbazole and a phenylene spacer. Best devices were designed with the soft salt bearing a carbazole moiety.