Patent ID: 7220468

Claim:
A three-terminal organic electronic device, comprising a first electrode formed on a substrate, a second electrode that is arranged at a distance from the first electrode, a conductive organic thin film that electrically connects the first electrode and the second electrode, and a third electrode that is sandwiched between the substrate and the conductive organic thin film, and that is insulated from said first and second electrodes; wherein the third electrode is an electrode that controls an electric field that acts on the conductive organic thin film by the voltage applied between itself and the first electrode or the second electrode; and wherein the conductive organic thin film is made of oriented organic molecules that include, at one end, a terminal bonding group that is covalently bonded to the substrate surface, wherein the terminal bonding group is at least on selected from a siloxane (—SiO—)-containing bonding group and a silicon nitride (—SiN—)-containing bonding group, and wherein the Si atomic nucleus and the N atomic nucleus can be additionally furnished with other bonded groups with corresponding valence; a conjugate bonding group that is located at any portion of the oriented organic molecules away from the terminal bonding group covalently bonded to the substrate surface, and that is polymerized with the conjugate bonding groups of the other oriented organic molecules; and a polar functional group that does not include active hydrogen and that is located at any portion between the terminal bonding group and the conjugate bonding group on the oriented organic molecules, wherein the polar functional group that does not include active hydrogen is at least one group selected from an ester group (—COO—), an oxycarbonyl group (—OCO—), a carbonyl group (—CO—), and a carbonate group (—OCOO—), and bonded to both sides of the polar functional group are alkylene groups which are —(CH2)m- and —(CH2)n-, where m and n are integers; and the oriented organic molecules with their conjugate bonding groups are polymerized, forming a conduction network.