The present invention discloses an organic polymer having an asymmetric structure, a preparation method thereof and a use as a photoelectric material thereof. The organic polymer with an asymmetric structure is obtained by polymerization after performing Stille coupling reaction between an electron-donating unit D and an electron-withdrawing unit A in the presence of a solvent and a catalyst. The compound of the present application has good heat stability, controllable absorption level, and is suitable for the preparation of hole transport materials of high-performance perovskite solar cells with high efficiency, flexibility, good stability and a large area as well as donor materials of organic solar cells.

A light emitting device having excellent luminance life contains an anode, a cathode, a first organic layer disposed between the anode and the cathode and a second organic layer disposed between the anode and the cathode. The first organic layer contains a compound represented by the formula (C-1), and the second organic layer contains a compound represented by the formula (C-1) and a cross-linked body of a crosslinkable material. ##STR00001##
Ring R.sup.1C and Ring R.sup.2C represent an aromatic hydrocarbon ring or an aromatic hetero ring and R.sup.C represents an oxygen atom, a sulfur atom or a group represented by the formula (C′-1). ##STR00002##
Ring R.sup.3C and Ring R.sup.4C represent an aromatic hydrocarbon ring or an aromatic hetero ring and R.sup.C′ represents a carbon atom, a silicon atom, a germanium atom, a tin atom or a lead atom.

A resist composition including a compound (D0) represented by general formula (d0) and a resin component (A1) has a structural unit (a0) in which a compound represented by general formula (a0-1) has a polymerizable group within the W.sup.1 portion converted into a main chain (in formula (d0), Rd.sup.01 represents a fluorine atom or a fluorinated alkyl group; In formula (a0-1), W.sup.1 represents a polymerizable group-containing group; C.sup.t represents a tertiary carbon atom, and the α-position of C.sup.t is a carbon atom which constitutes a carbon-carbon unsaturated bond; R.sup.11 represents an aromatic hydrocarbon group; or a chain hydrocarbon group; R.sup.12 and R.sup.13 each independently represents a chain hydrocarbon group, or R.sup.12 and R.sup.13 are mutually bonded to form a cyclic group). ##STR00001##

A repeat unit comprising

##STR00001##

In the repeat unit, X.sub.1 and X.sub.2 are independently selected from the group consisting of: F, Cl, H, and combinations thereof. Additionally, in this monomer, R′ and R″ are independently selected from an alkyl group, an aryl group, or combinations thereof. Also, R.sub.3, and R.sub.4 are independently selected from unsubstituted or substituted branched alkyls with 1 to 60 carbon atoms and unsubstituted or substituted linear alkyls with 1 to 60 carbon atoms.

The present disclosure relates to a composition that includes ##STR00001##
where R.sub.1 and R.sub.2 include at least one of a hydrogen, a hydroxyl group, and/or an alkyl group, R.sub.3 and R.sub.4 include at least one of hydrogen, a hydroxyl group, an alkyl group, and/or a ketone, and 1≤n≤2000.

A method of combining different materials to produce the polymer

##STR00001##

In this polymer X.sub.1, X.sub.2, X.sub.3, and X.sub.4 are independently selected from the group consisting of: F, Cl, H, and combinations thereof. Additionally, in this polymer R.sub.15, R.sub.16, R.sub.17, and R.sub.18 are independently selected from the group consisting of: F, Cl, H, and combinations thereof. Finally, in this polymer R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 are independently selected from unsubstituted branched alkyls with 1 to 60 carbon atoms unsubstituted or substituted branched alkyls with 1 to 60 carbon atoms and unsubstituted or substituted linear alkyls with 1 to 60 carbon atoms.

A material comprising an electron-accepting unit of formula (I): wherein Ar1 and Ar2 independently is a 5- or 6-membered aromatic or heteroaromatic ring or is absent; and each X is independently H or a substituent with the proviso that at least one X is an electron-withdrawing group and wherein X groups bound to adjacent carbon atoms may be linked to form an electron-withdrawing group. The material further comprises an electron-donating unit D comprising a fused or unfused furan or thiophene. The material may be a polymer comprising repeat units of formula (I). The material may be a non-polymeric compound. An organic photodetector may contain a bulk heterojunction layer containing an electron acceptor or an electron donor wherein at least one of the electron acceptor and electron donor contains a unit of formula (I).

##STR00001##

According to the present invention, options for materials for organic devices such as materials for organic EL elements are increased by addition of a cycloalkane, by condensation, to a polycyclic aromatic compound in which a plurality of aromatic rings are linked together by boron atoms, oxygen atoms, and the like. By using a novel cycloalkane-condensed polycyclic aromatic compound as a material for an organic EL element, for example, an organic EL element having excellent emission efficiency and element life is provided.

It is an object of the present invention to provide a high molecular weight compound that has excellent hole-injecting/transporting performance, is capable of blocking electrons, and is highly stable in a thin film state. It is another object of the invention to provide a light emitting diode with high luminous efficacy and a long lifespan, containing an organic layer (thin film) made of the above-described high molecular weight compound. The high molecular weight compound according to the present invention includes a repeating unit constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight in terms of polystyrene of 10,000 or more and less than 1,000,000.

A cycloolefin ring-opened copolymer includes a structural unit derived from a norbornene compound that includes a heteroelement-containing hydrocarbon group and a structural unit derived from a norbornene compound that includes a heteroelement-free hydrocarbon group. In this copolymer, the structural unit derived from the norbornene compound that includes the heteroelement-containing hydrocarbon group has a proportional content of not less than 0.01 mol % and not more than 15.00 mol % when all structural units included in the copolymer are taken to be 100 mol %.