Conductive organic thin film, process for producing the same, and organic photoelectronic device, electric wire, and electrode aech employing the same

A method for manufacturing a conductive organic thin film, comprising:

• preparing a substrate that has active hydrogen on its surface or to whose surface active hydrogen is provided, and a chemical compound composed of organic molecules, each of the organic molecule having:
• a terminal functional group that is to be bound with a surface of the substrate by a covalent bond, the terminal binding group being present at one of the ends of the organic molecule;
• a conjugatable group that is to be polymerized with another molecule, the conjugatable group being present in the organic molecule;
• and
• a photoresponsive functional group including no active hydrogen, the photoresponsive functional group being present between the terminal functional group and the conjugatable group;
• forming an organic thin film with the chemical compound by bringing the chemical compound in contact with the substrate so that covalent bonds are formed through an elimination reaction;
• tilting the organic molecules composing the organic thin film in a predetermined direction for alignment;
• and
• forming a conductive network by conjugating the conjugatable groups by at least one polymerizing method selected from electrolytic oxidation polymerization, catalystic polymerization, and energy beam polymerization.

A two-terminal organic photoelectronic device, comprising a first electrode formed on a substrate, a second electrode arranged separately from the first electrode, and a conductive organic thin film electrically connecting the first and second electrodes with each other,

• wherein the conductive organic thin film comprises organic molecules, each of the organic molecules having:
• a terminal binding group that is bound with a surface of a substrate by a covalent bond, the terminal binding group being present at one of the ends of the organic molecule;
• a conjugate group that is polymerized with another molecule, the conjugate group being present in the organic molecule;
• and
• a photoresponsive functional group including no active hydrogen, the photoresponsive functional group being present between the terminal binding group and the conjugate group, wherein
• the organic molecules are aligned, and
• the conjugate groups are polymerized so that a conductive network is formed.

An electric cable, comprising:

• a core wire;
• a conductive organic thin film formed in a lengthwise direction of a surface of the core wire;
• and
• an insulation coating covering the conductive organic thin film,
• wherein the conductive organic thin film comprises organic molecules, each of the organic molecules having:
• a terminal binding group that is bound with a surface of a substrate of the core wire by a covalent bond, the terminal binding group being present at one of the ends of the organic molecule;
• a conjugate group that is polymerized with another molecule, the conjugate group being present in the organic molecule;
• and
• a photoresponsive functional group including no active hydrogen, the photoresponsive functional group being present between the terminal binding group and the conjugate group, wherein
• the organic molecules are aligned, and
• the conjugate groups are polymerized by the electrolytic oxidation polymerization so that a conductive network is formed.

An electrode transparent with respect to light having a wavelength in a visible range,

• wherein the electrode is a conductive organic thin film comprising organic molecules, each of the organic molecules having:
• a terminal binding group that is bound with a surface of a substrate by a covalent bond, the terminal binding group being present at one of the ends of the organic molecule;
• a conjugate group that is polymerized with another molecule, the conjugate group being present in the organic molecule;
• and
• a photoresponsive functional group including no active hydrogen, the photoresponsive functional group being present between the terminal binding group and the conjugate group, wherein
• the organic molecules are aligned, and
• the conjugate groups are polymerized so that a conductive network is formed.