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:
Surfactants are provided that have a hydrophobic tail portion and a hydrophilic head portion. The hydrophilic head portion includes a terminal dialkyl-substituted tertiary amine or a terminal cycloalkyl-substituted tertiary amine. Also provided are pigment-based inks employing the surfactant, a combination of an electronic display and the pigment-based inks, and a process for reducing conductivity in primary amine-based surfactants and improving reliability of electronic inks employing such surfactants.
摘要:
Pigment based inks are provided. The inks include a non-polar carrier fluid and a surface-functionalized pigment particle including a nitrogen-linked moiety to the surface of the pigment particle through a nitrogen link at one end of the nitrogen-linked moiety and a graft copolymer having two or three blocks attached at another end, the pigment particle suspended in the non-polar carrier fluid, the nitrogen-linked moiety further including an alkyl chain interposed between the nitrogen-linked moiety and the graft copolymer having the structure (I), where X is the nitrogen-linked moiety and Y is a copolymer, and the letter a is an integer between 0 and about 5,000, while the letter b is an integer of 2 or more.
摘要:
According to an example, an apparatus for performing spectroscopy includes a structure having an opening. The apparatus also includes a plurality of surface-enhanced Raman spectroscopy (SERS) elements positioned within the structure and a porous membrane covering the opening and the plurality of SERS elements. The porous membrane is to allow a predetermined analyte to reach the SERS elements while substantially preventing other analytes from reaching the SERS elements.
摘要:
An alcohol-soluble organic coating including a hole transport material formed on a surface of organic photoconductor is provided. The coating comprises a cationic alternate fluorene-based copolymer with phosphonium salt terminal groups embedded in an in-situ cross-linked polymer.
摘要:
An organic photoconductor includes: a conductive substrate; a charge generation layer on the conductive substrate; and a charge transport layer on the charge generation layer. An overcoat layer is formed on the charge transport layer. The overcoat layer is a latex polymer in which a charge transport material is dispersed.
摘要:
According to an example, an apparatus for performing spectroscopy includes a structure having an opening. The apparatus also includes a plurality of surface-enhanced Raman spectroscopy (SERS) elements positioned within the structure and a porous membrane covering the opening and the plurality of SERS elements. The porous membrane is to allow a predetermined analyte to reach the SERS elements while substantially preventing other analytes from reaching the SERS elements.
摘要:
An apparatus for surface enhanced Raman spectroscopy includes a substrate, a nanostructure and a plasmonic material. The nanostructure and the plasmonic material are integrated together to provide electronic and plasmonic enhancement to a Raman signal produced by electromagnetic radiation scattering from an analyte.
摘要:
A sensor for surface enhanced Raman spectroscopy (SERS) sensor includes surfaces and an actuator to adjust an intersurface spacing between the surfaces to contain an analyte and allow the analyte to be released from containment.
摘要:
A doped protective coating for extending a lifetime of an organic photoconductor is provided. The coating includes an in-situ cross-linked polymer matrix and a substantially uniformly distributed dopant therein. The dopant comprises a charge transport molecular species. A process for coating the organic photoconductor and a coated organic photoconductor are also disclosed.