Charge-transporting composition
AssigneeNissan Chemical Corporation
InventorsShun Sugawara, Shinichi Maeda
Life of this patent
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Abstract
Provided is a charge-transporting composition that contains: a charge-transporting substance comprising a polythiophene derivative represented by formula (1); a fluorine-based surfactant; metal oxide nanoparticles; and a solvent. (R1 and R2 are each independently a hydrogen atom, an alkoxy group having 1-40 carbon atoms, —O—[Z—O]p—Re, a sulfonic acid group, or the like, or R1 and R2 bond to each other to form —O—Y—O—. Y is an alkylene group having 1-40 carbon atoms, which may contain an ether bond and which may be substituted with a sulfonic acid group. Z is an alkylene group having 1-40 carbon atoms, which may be substituted with a halogen atom. p is 1 or more, and Re is a hydrogen atom, an alkyl group having a 1-40 carbon atoms, or the like.)
Claims21
A charge-transporting composition comprising:
- a charge-transporting substance including a polythiophene derivative containing repeating units represented by the formula (1);
- a fluorine-based surfactant;
- metal oxide nanoparticles;
- an electron-accepting dopant substance different from the polythiophene derivative containing repeating units represented by the formula (1);
- and a solvent:
- wherein R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 40 carbon atoms, a fluoroalkyl group having 1 to 40 carbon atoms, an alkoxy group having 1 to 40 carbon atoms, a fluoroalkoxy group having 1 to 40 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, —O—[Z—O]p—Re, or a sulfonic acid group, or R1 and R2 are combined to form —O—Y—O—, Y is an alkylene group having 1 to 40 carbon atoms, optionally containing an ether bond and optionally substituted with a sulfonic acid group, and Z is an alkylene group having 1 to 40 carbon atoms and optionally substituted with a halogen atom, p is 1 or more, and Re is a hydrogen atom, an alkyl group having 1 to 40 carbon atoms, a fluoroalkyl group having 1 to 40 carbon atoms, or an aryl group having 6 to 20 carbon atoms;
- wherein the metal oxide nanoparticles are SiO2;
- wherein SiO2 is silica sol;
- wherein the electron-accepting dopant substance is an arylsulfonic acid compound;
- and
- wherein an amount of the metal oxide nanoparticles is 50 to 95 wt % based on the amount of the charge transporting substance.
A composition for a hole collection layer of an organic photoelectric conversion element, comprising:
- a charge-transporting substance including a polythiophene derivative containing repeating units represented by the formula (1);
- metal oxide nanoparticles, an electron-accepting dopant substance different from the polythiophene derivative containing repeating units represented by the formula (1);
- and a solvent:
- wherein R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 40 carbon atoms, a fluoroalkyl group having 1 to 40 carbon atoms, an alkoxy group having 1 to 40 carbon atoms, a fluoroalkoxy group having 1 to 40 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, —O—[Z—O]p—Re or a sulfonic acid group, or R1 and R2 are combined to form —O—Y—O—, Y is an alkylene group having 1 to 40 carbon atoms, optionally containing an ether bond and optionally substituted with a sulfonic acid group, and Z is an alkylene group having 1 to 40 carbon atoms and optionally substituted with a halogen atom, p is 1 or more, and Re is a hydrogen atom, an alkyl group having 1 to 40 carbon atoms, a fluoroalkyl group having 1 to 40 carbon atoms, or an aryl group having 6 to 20 carbon atoms;
- wherein the metal oxide nanoparticles are SiO2;
- wherein SiO2 is silica sol;
- wherein the electron-accepting dopant substance is an arylsulfonic acid compound;
- and
- wherein an amount of the metal oxide nanoparticles is 50 to 95 wt % based on the amount of the charge transporting substance.
Dependencies are inferred from the claim text.