Imaging members comprising capped structured organic film compositions

An imaging member comprising:

• a substrate;
• a charge generating layer;
• a charge transport layer;
• and
• an optional overcoat layer, wherein an outermost layer of the imaging member comprises a structured organic film (SOF) comprising molecular building blocks having a plurality of segments including at least a first fluorinated segment and functional groups (Fg),
• a plurality of linkers arranged as a covalent organic framework (COF),
• capping units altering the mechanical and physical properties of the SOF via local interruption of the SOF framework, wherein the capping units comprise hole transport molecules bonding to more than 50% of the plurality of the functional groups (Fg) and a capping unit loading is greater than 5% by weight of the total weight of the SOF, and further wherein the hole transport molecules are selected from the group consisting of carbazole;
• N-ethyl carbazole;
• N-isopropyl carbazole;
• N-phenyl carbazole;
• tetraphenylpyrene;
• 1-methylpyrene;
• perylene;
• chrysene;
• anthracene;
• tetraphene;
• 2-phenyl naphthalene;
• azopyrene;
• 1-ethyl pyrene;
• acetyl pyrene;
• 2,3-benzochrysene;
• 2,4-benzopyrene;
• 1,4-bromopyrene;
• poly(N-vinylcarbazole);
• poly(vinylpyrene);
• poly(vinyltetraphene);
• poly(vinyltetracene);
• poly(vinylperylene);
• 2,4,7-trinitro-9-fluorenone;
• 2,4,5,7-tetranitro-fluorenone;
• dinitroanthracene;
• dinitroacridene;
• tetracyanopyrene;
• dinitroanthraquinone;
• butylcarbonylfluorenemalononitrile;
• and mixtures thereof.

A xerographic apparatus comprising:

• an imaging member, wherein an outermost layer of the imaging member comprises a structured organic film (SOF) comprising
• molecular building blocks having a plurality of segments and functional groups (Fg),
• a plurality of linkers arranged as a covalent organic framework (COF),
• capping units altering the mechanical and physical properties of the SOF via local interruption of the SOF framework, wherein the capping units comprise hole transport molecules bonding to more than 50% of the plurality of the functional groups (Fg), and further wherein the hole transport molecules are selected from the group consisting of carbazole;
• N-ethyl carbazole;
• N-isopropyl carbazole;
• N-phenyl carbazole;
• tetraphenylpyrene;
• 1-methylpyrene;
• perylene;
• chrysene;
• anthracene;
• tetraphene;
• 2-phenyl naphthalene;
• azopyrene;
• 1-ethyl pyrene;
• acetyl pyrene;
• 2,3-benzochrysene;
• 2,4-benzopyrene;
• 1,4-bromopyrene;
• poly(N-vinylcarbazole);
• poly(vinylpyrene);
• poly(vinyltetraphene);
• poly(vinyltetracene);
• poly(vinylperylene);
• 2,4,7-trinitro-9-fluorenone;
• 2,4,5,7-tetranitro-fluorenone;
• dinitroanthracene;
• dinitroacridene;
• tetracyanopyrene;
• dinitroanthraquinone;
• butylcarbonylfluorenemalononitrile;
• and mixtures thereof;
• a charging unit to impart an electrostatic charge on the imaging member;
• an exposure unit to create an electrostatic latent image on the imaging member;
• an image material delivery unit to create an image on the imaging member;
• a transfer unit to transfer the image from the imaging member;
• and
• an optional cleaning unit.