Abstract:
A coating composition containing a radiation-curable component, a photoinitiator, and a UV absorber is described. The coating composition may be applied to an optical fiber and cured to form a coating. The UV absorber provides a protective function by inhibiting unintended curing of the coating that may occur upon exposure of the fiber to UV light during fiber processing. The spectral overlap of the photoinitiator and UV absorber is minimized to permit efficient photoinitiation of the curing reaction over one or more wavelengths. Photoinitiation may be excited by an LED source with a peak emission wavelength in the range from 360 nm - 410 nm.
Abstract:
A patterned article and a method of making the patterned article. The patterned article comprises a glass substrate and black matrix segments. The black matrix segments are in the form of a pattern and at least one of the segments has a line width of 8 µm or less. The article also comprises an adhesion agent positioned between the glass substrate and the black matrix segments. The adhesion agent provides at least one of: a total surface energy of 65 mN/m or less and at least a 30% reduction in surface polarity compared to a control untreated glass surface as determined by H 2 O and diiodomethane contact angle and application of the Wu model.
Abstract:
Described herein are compositions including heterocyclic organic compounds. More specifically, described herein are bicyclic thiadiazole-based compounds that are combined with fused thiophenes structures, along with methods for making such compounds, and uses thereof.
Abstract:
Disclosed herein are methods for treating a glass substrate, comprising bringing a surface of the glass substrate into contact with at least one surface treatment agent for a time sufficient to form a coating comprising the at least one surface treatment agent on at least a portion of the surface. Also disclosed herein are glass substrates comprising at least one surface and a coating on at least a portion of the surface, wherein the coated portion of the surface has a contact angle ranging from about 20 degrees to about 95 degrees, and/or a contact angle greater than about 20 degrees after contact with water, and/or a contact angle less than about 10 degrees after wet or dry cleaning of the glass substrate.
Abstract:
An optical fiber coating composition comprising: one or more monomers forming a first polymer chain and a second polymer chain upon polymerization; and one or more hydrogen bonding cross-linkers including a first molecule that covalently bonds to the first polymer chain during the polymerization and a second molecule that covalently bonds to the second polymer chain during the polymerization. The first molecule includes a first functional group. The second molecule includes a second functional group. The first functional group and the second functional group hydrogen bond to form three or more hydrogen bonds during the polymerization. The first functional group and the second functional group both can be a ureidopyrimidinone functional group. The first molecule and the second molecule can both be a ureidopyrimidinone (meth)acrylate. The one or more monomers can be mono-acrylate monomers, and the optical fiber coating composition can lack any multi-acrylate monomers.
Abstract:
Electronics assemblies including laminate substrates and methods of manufacture are disclosed. In one embodiment, an electronics assembly (140A) includes a glass-based substrate (110) having a thickness of less than or equal to 300 µm, a first surface (111) and a second surface, at least one gate electrode (155) disposed on the first surface (111) of the glass-based substrate (110), and a polymer layer (154) disposed on the first surface (111) of the glass-based substrate (110). The polymer layer (154) contacts at least a portion of the at least one gate electrode (155). The electronics assembly (140A) further includes at least one source electrode (152), at least one drain electrode (153), and a semiconductor material (151) disposed on the polymer layer (154). The semiconductor material (151) contacts at least a portion of the at least one source electrode (152) and the at least one drain electrode (153). The polymer layer (154) is configured to act as a dielectric material between the at least one gate electrode (155) and the semiconductor material (151).
Abstract:
Disclosed is a polymer blend comprising an organic semiconductor (OSC) polymer blended with an isolating polymer and method for making the same. The OSC polymer includes a diketopyrrolopyrrole fused thiophene polymeric material, and the fused thiophene is beta-substituted. The isolating polymer includes a non-conjugated backbone, and the isolating polymer may be one of polyacrylonitrile, alkyl substituted polyacrylonitrile, polystyrene, polysulfonate, polycarbonate, an elastomer block copolymer, derivatives thereof, copolymers thereof and mixtures thereof. The method includes blending the OSC polymer with an isolating polymer in an organic solvent to create a polymer blend and depositing a thin film of the polymer blend over a substrate. Also disclosed is an organic semiconductor device that includes a thin semiconducting film comprising OSC polymer.
Abstract:
The disclosure relates to thiophene-based ditin compounds of formulae (I) and (II) and methods of making and using such compounds. The compounds are characterized by two organotin groups on a conjugated aryl group spaced from and/or adjacent to a fused thiophene moiety. The compounds are used as monomers in polymerization reactions via Stille coupling.
Abstract:
A formulation including: an organic semiconducting polymer selected from the diketopyrrolopyrrole (DPP) and fused thiophene copolymer structures of the formulas (I), (II), or combinations thereof, or salts thereof, in an amount of from 0.1 to 5 wt% based on the total weight of the formulation: forumulas (I) and (II), respectively, where m is an integer from 1 to 2, n is an integer from 4 to 80, X and Y are independently selected from a divalent heteroaryl, such as a thiophene, R 1 , R 2 , R 3 , and R 4 is each a hydrocarbylene substituent as defined herein, a first solvent is selected from a cyclic aliphatic in an amount of from 2 to 98 wt%; and a second solvent selected from an aromatic in an amount of from 98 to 2 wt%. Also disclosed are method of making and using the disclosed formulations, for example, for use in electronic devices.
Abstract:
Articles utilizing strengthened glass substrates, for example, ion-exchanged glass substrates, in combination with organic molecules or polymers are described along with methods for making the articles. The articles are useful in electronics-based devices that utilize organic thin film transistors.