Abstract: Provided are compounds with a donor moiety, a first acceptor moiety and a second acceptor moiety, as shown by Formula (I): With the unique molecular design, compounds of Formula (I) can provide a desirable power conversion efficiency. Moreover, this invention also provides organic thin-film solar cells comprising the above-mentioned compounds.

Abstract: Cross-linkable copper complexes comprising a copper phthalocyanine core and one or more cross-linkable functionalities linked to the phthalocyanine core. The copper complex may have a spacer group with the one or more cross-linkable functionalities on the spacer group. The spacer group contains a chain or one or more aryl groups. These cross-linkable copper complexes may be used in making organic electronic devices, such as OLEDs, by solution processing techniques.

Abstract: A diindenothiophene derivative of the following formula (1) is disclosed: wherein each of G1, G2, G3 and G4 is independently an unsubstituted or substituted C6-C40-aromatic group or a C1-C40-aliphatic group; A is an electron-withdrawing group; and D is an electron-donating group. The inventive diindenothiophene derivatives can be used in a dye-sensitized solar cell.

Abstract: A diindenothiophene derivative of the following formula (1) is disclosed: wherein each of G1, G2, G3 and G4 is independently an unsubstituted or substituted C6-C40-aromatic group or a C1-C40-aliphatic group; A is an electron-withdrawing group; and D is an electron-donating group. The inventive diindenothiophene derivatives can be used in a dye-sensitized solar cell.

Abstract: The present invention discloses synthesis of 2,2?-disubstituted 9,9?-spirobifluorene-based triaryldiamine. First, 2,2?-diamino-9,9?-spirobifluorene, a Pd-catalyst as auxiliary and aryl halide BX are provided, wherein X is selected from the group consisting of: Cl, Br and I, B comprises one of the following group: aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s). Next, a substitution reaction is performed to react the 2,2?-diamino-9,9?-spirobifluorene with the aryl halide BX to produce the 2,2?-disubstituted 9,9?-spirobifluorene-based triaryldiamines. In addition, the present invention discloses organic light emitting devices comprising hole transporting material comprising 2,2?-bis(N,N-disubstituted amino)-9,9?-spirobifluorenes.

Abstract: The present invention discloses a carbazole-based compound with a general formula as following: , wherein Q is a non-conjugate moiety, A comprises one of the following group: aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s). In addition, the present invention discloses a method for forming the carbazole-based compound.

Abstract: The present invention discloses synthesis of 2,2?-disubstituted 9,9?-spirobifluorene-based triaryldiamine. First, 2,2?-diamino-9,9?-spirobifluorene, a Pd-catalyst as auxiliary and aryl halide BX are provided, wherein X is selected from the group consisting of: Cl, Br and I, B comprises one of the following group: aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s). Next, a substitution reaction is performed to react the 2,2?-diamino-9,9?-spirobifluorene with the aryl halide BX to produce the 2,2?-disubstituted 9,9?-spirobifluorene-based triaryldiamines. In addition, the present invention discloses organic light emitting devices comprising hole transporting material comprising 2,2?-bis(N,N-disubstituted amino)-9,9?-spirobifluorenes.

Abstract: A substituted oligofluorene for organic light-emitting diode (OLED) and organic photoconductor (OPC) has a chemical structure of: wherein X and Y are an integer of 0 or 1, G1 and G2 are independently of either CnH2n+1 or CnH2n+1O; and n is an integer of 0 to 16.

Abstract: A fluorene-based pyrimidine-containing conjugated oligomer applied in six different layers in an OLED, respectively, used as an electron-transport emitting layer, an emitting layer, a host in the emitting layer, the ETL, a host in the electron-transport emitting layer, and a hole-blocking layer to upgrade light-emitting efficiency and regulate emitting color of the OLED.

Abstract: A fluorene-based pyrimidine-containing conjugated oligomer applied in six different layers in an OLED, respectively, used as an electron-transport emitting layer, an emitting layer, a host in the emitting layer, the ETL, a host in the electron-transport emitting layer, and a hole-blocking layer to upgrade light-emitting efficiency and regulate emitting color of the OLED.