A novel polyfluorene-based ionomer, an anion exchange membrane, a method for preparing the polyfluorene-based ionomer, and a method for fabricating the anion exchange membrane are proposed. The polyfluorene-based ionomer contains no aryl ether bonds in the polymer backbone and includes piperidinium groups incorporated into the repeating units. The anion exchange membrane is fabricated from the polyfluorene-based ionomer. The anion exchange membrane has good thermal and chemical stability, excellent mechanical properties, and high ion conductivity. Due to these advantages, the anion exchange membrane can be applied as a membrane for an alkaline fuel cell and to a binder for an alkaline fuel cell or water electrolysis.

Objects of the present invention are to provide an organic semiconductor element in which carrier mobility is high, variation of mobility is suppressed, and temporal stability under high temperature and high humidity is excellent, and a manufacturing method thereof, to provide a novel compound suitable for an organic semiconductor, and to provide an organic semiconductor film in which mobility is high, variation of mobility is suppressed, and temporal stability under high temperature and high humidity is excellent, a manufacturing method thereof, and an organic semiconductor composition that can suitably form the organic semiconductor film.

The organic semiconductor element according to the present invention is an organic semiconductor layer containing a compound having a constitutional repeating unit represented by Formula 1 and having a molecular weight of 2,000 or greater.

D-A  (1)

This invention relates to the field of polymers and olefin polymerization, and more specifically olefin metathesis polymerization. Specifically, the present invention provides a polymer comprising rigorously alternating AB subunits and methods of formation of the AB alternating polymers. In the polymers and process of the invention, the A monomer is derived from a cyclobutene derivative, and the B monomer is derived from a cyclohexene derivative. The polymerization takes place in the presence of an olefin metathesis catalyst.

Polymers comprising at least one unit of formula (1) and their use as semiconducting materials.

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Disclosed are conjugated polymers based on terthiophene. Such polymers exhibit good solubility and great solution processibility, and that enable highly efficient OPVs.

The present invention relates to a polymer, an organic solar cell comprising the polymer, and a perovskite solar cell comprising the polymer. The polymer according to the present invention has excellent absorption ability for visible light and an energy level suitable for the use as an electron donor compound in a photo-active layer of the organic solar cell, thereby increasing the light conversion efficiency of the organic solar cell. In addition, the polymer according to the present invention has high hole mobility, and is used as a compound for a hole transport layer, and thus can improve efficiency and service life of the perovskite solar cell without an additive.

Water solvated polymeric dyes and polymeric tandem dyes are provided. The polymeric dyes include a water solvated light harvesting multichromophore having a conjugated segment of aryl or heteroaryl co-monomers linked via covalent bonds, vinylene groups or ethynylene groups. The polymeric tandem dyes further include a signaling chromophore covalently linked to the multichromophore in energy-receiving proximity therewith. Also provided are labeled specific binding members that include the subject polymeric dyes. Methods of evaluating a sample for the presence of a target analyte and methods of labeling a target molecule in which the subject polymeric dyes find use are also provided. Systems and kits for practicing the subject methods are also provided.

Disclosed are an electroluminescent polymer based on phenanthroimidazole units, a preparation method therefor, and the use thereof. The electroluminescent polymer based on phenanthroimidazole units has a structure as shown in the formula (I), and the side chain thereof contains phenanthroimidazole units. The electroluminescent polymer (1) has the properties of hybridized local and charge-transfer states, which can improve the utilization of excitons and the electroluminescence properties of devices by means of reverse inter-system crossing to effectively utilize triplet state excitons; (2) the phenanthroimidazole unit has a large degree of conjugation and a strong rigidity, which can not only improve the thermal stability of a material, but can also increase the radiation transition rate of the material and improve the light-emitting efficiency thereof; and (3) the raw materials of the polymer are cheap, the synthetic route is simple, and purification is convenient, which is beneficial for industrial scaled-up production thereof. The polymer has a good solubility, and can be used to prepare large-area flexible display devices by means of a solution processing technology. The polymer has great development potential and prospects in the field of organic electronic display.

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A hard mask-forming composition which forms a hard mask used in lithography, including: a resin containing an aromatic ring and a polar group; and a compound containing at least one of an oxazine ring fused to an aromatic ring, and a fluorene ring.

Disclosed are a polymer including at least one structural unit with a moiety represented by Chemical Formula 1, an organic thin film including the polymer, a thin film transistor, and an electronic device. ##STR00001## In Chemical Formula 1, Ar.sup.1 to Ar.sup.3, L.sup.1, L.sup.2, and R.sup.1 to R.sup.6 are the same as described in the detailed description.