摘要:
The present disclosure is related to coated photoconductors. In an example, a coated photoconductor can comprise a photoconductor including a substrate having a charge generation layer and charge transport layer adhered thereto and a top coating adhered to the photoconductor. The top coating can comprise a cross-linkable polymer, a cross-linker, and a polymeric dopant having a weight average molecular weight of less than 500,000. Additionally, the top coating can have a thickness of 0.1 μm to 12 μm and the polymeric dopant can be present in the top coating at a concentration of 0.1 wt % to 10 wt %.
摘要:
Organic photoconductors and methods of manufacturing the same are disclosed. An example method to manufacture an organic photoconductor involves applying a liquid solution to a surface of a cylindrically-shaped substrate while rotating the substrate about its axis, the substrate comprising a surface layer and the liquid solution comprising a matrix polymer species and a dopant species dissolved in a solvent. The example method further involves rotating the substrate while the solvent evaporates to provide a substantially evenly distributed seamless residue film comprising the matrix polymer species and the dopant species, and cross-linking the matrix polymer species of the residue film.
摘要:
A method for making a photoconductor for electrophotography can comprise depositing a charge generating layer on an electrode; depositing a charge transfer layer on the charge generating layer, where a plurality of charge transfer molecules are disposed within the charge transfer layer; depositing a film of non-conducting material onto the surface of the charge-transfer layer; heating the film and the surface to cause a subset of the charge transfer molecules to move into the non-conducting material, creating in the film a conducting sub-layer and an insulating sub-layer, where the insulating sub-layer is substantially free of charge transfer molecules.
摘要:
The present invention is drawn to a layered organic device, and a method of forming the same. The method includes steps of applying a first solvent-containing organic layer to a substrate and removing solvent from the first solvent-containing organic layer to form a first solidified organic layer. Additional steps include applying a second solvent-containing organic layer to the first solidified organic layer and removing solvent from the second solvent-containing organic layer to form a second solidified organic layer. The first solidified organic layer can be crosslinked, which suppresses negative impact to components in the first solidified organic layer when the solvent of the second solvent-containing organic layer is deposited on the first solidified organic layer.
摘要:
A chemical vapor deposition method includes a step of maintaining a hydrogen plasma at low pressure in a processing chamber. The processing chamber has a long, wide, thin geometry to favor deposition of thin-film silicon on sheet substrates over the chamber walls. The sheet substrates are moved through between ends. A pair of opposing radio frequency electrodes above and below the workpieces are electrically driven hard to generate a flat, pancaked plasma cloud in the middle spaces of the processing chamber. A collinear series of gas injector jets pointed slightly up on a silane-jet manifold introduce 100% silane gas at high velocity from the side in order to roll the plasma cloud in a coaxial vortex. A second such silane-jet manifold is placed on the opposite side and pointed slightly down to further help roll the plasma and maintain a narrow band of silane concentration. A silane-concentration monitor observes the relative amplitudes of the spectral signatures of the silane and the hydrogen constituents in the roll-vortex plasma and outputs a process control feedback signal that is used to keep the silane in hydrogen concentration at about 6-7%.
摘要:
A method of making a lower cost active matrix display. In a particular embodiment, the method includes providing at least one first conductor upon a substrate and depositing a gate dielectric upon the first conductor and substrate. At least one paired second conductor and a pixel electrode are deposited upon the gate dielectric, with the second conductor crossing the first conductor and with a narrow gap between the paired second conductor and the pixel electrode. A semiconductor material is deposited over the paired second conductor and pixel electrode, filling the narrow gap. The narrow gap shelters a portion of the semiconductor material, which serves as a semiconductor bridge capable of functioning either as an insulator or as a channel region of a field effect transistor. The remaining, unsheltered semiconductor material is removed. A liquid crystal layer is then deposited upon the paired second conductor, the pixel electrode and the sheltered semiconductor material, and a translucent conductor is deposited upon the liquid crystal display layer. An associated display is also provided
摘要:
An ultra-high-density data storage device that relies on optical signals. The device includes a luminescent layer that emits light when stimulated by an electron beam. The device also includes a phase-change layer that contains data bits that may absorb or reflect the stimulated light before the light reaches a detector. Also, a method of data storage and retrieval that includes writing data bits in the phase-change layer, stimulating emissions in the luminescent layer, and reading data bits by monitoring the amount of light that reaches the detector.
摘要:
There is provided a method of cleaning an amorphous silicon electrophotographic printing drum. the method comprises contacting the amorphous silicon of the drum with a base and an oxidising agent; and then rinsing the amorphous silicon with a liquid.
摘要:
An organic photoconductor includes: a conductive substrate; a charge generation layer formed on the conductive substrate; a charge transport layer formed on the charge generation layer; and a protective coating formed on the charge transport layer. The protective coating comprises nanoparticles incorporated in an in-situ cross-linked polymer matrix. A process for increasing mechanical strength in an organic photoconductor is also provided.
摘要:
An organic photoconductor includes: a conductive substrate; a charge generation layer formed on the conductive substrate; a charge transport layer formed on the charge generation layer; and a protective coating formed on the charge transport layer. The protective coating comprises nanoparticles incorporated in an in-situ cross-linked polymer matrix. A process for increasing mechanical strength in an organic photoconductor is also provided.