Asahi Glass Company, Limited

Agc Inc.

Yamagata University

Kaori Tsuruoka

Takefumi Abe

Masahiro Ito

Takeshi Eriguchi

Yasuhiro Kuwana

Daisuke Yokoyama

Shigeki Hattori

Takao Doi

Shunsuke Yokotsuka

Takashi Watabe

Tomoko Matsumoto

Tatsuo Onoguchi

Hiromasa Yamamoto

Yuichiro Ishibashi

To provide a novel conductive film having two regions differing in the light transmittance, an optoelectronic device having such a conductive film, and a method for producing a conductive film by which such a conductive film can readily be produced. A conductive film, which has a first region and a second region having a light transmittance higher than the first region,

Conductive film, optoelectronic device and conductive film manufacturing method

To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.60, the hole transport layer and the electron blocking layer are made of different materials from each other, and the LUMO energy level of the electron blocking layer is higher than the LUMO energy level of the light emitting layer and the LUMO energy level of the hole transfer layer.

Organic photoelectronic element having hole transport layer containing fluorinated polymer and organic semiconductor material

To provide an organic photoelectronic element, of which the external quantum efficiency is improved, the power consumption is low and the service life is prolonged. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, and a hole transport layer provided in contact with the light emitting layer between the light emitting layer and the anode, wherein the hole transport layer contains an organic semiconductor material and a fluorinated polymer, and at the surface of the hole transport layer in contact with the light emitting layer, the fluorinated polymer is present.

Organic photoelectronic element comprising fluorinated polymer

To provide a charge injection layer in which the refractive index is sufficiently low and unbalance in the composition of materials is less likely to occur, and a method for its production as well as an organic photoelectronic element and a method for its production. The charge injection layer contains a fluorinated polymer and a semiconductor material, and has a refractive index in the wavelength range of from 450 to 800 nm, of at most 1.60.

Charge injection layer and method for its production as well as organic photoelectronic element and method for its production

To provide a charge transport layer excellent in the external quantum efficiency, and an organic photoelectronic element comprising the charge transport layer. A charge transport layer comprising a film containing a fluorinated polymer and a semiconductor material, wherein the film has a material composition such that &#x394;Eis within a range of from 0.010 to 0.080 MV/cm. An organic photoelectronic element comprising the charge transport layer.

Charge transport layer and organic photoelectronic element

A curable composition that is sufficiently cured even without a heating step at high temperature and from which a low dielectric constant cured film excellent in solvent resistance is obtained. A curable composition containing a fluorinated polyarylene prepolymer (A) having a crosslinkable functional group, a compound (B) having a number average molecular weight of from 140 to 5,000, having at least two crosslinkable functional groups and having no fluorine atoms, a copolymer (C) having the following units (c1) and (c2) and a radical polymerization initiator (D): unit (c1): a unit having a fluoroalkyl group having at most 20 carbon atoms, which may have an etheric oxygen atom between carbon atoms, and having no crosslinkable functional group; unit (c2): a unit having a crosslinkable functional group.

Curable composition and process for producing cured film

To provide a prepolymer which is excellent in heat resistance and which can form a cured product excellent in oil repellency and water repellency. A crosslinkable prepolymer having a polyaryl ether structure on its main chain, which has a crosslinkable functional group and a side chain represented by 'Rf-CH&#x2014;O&#x2014;' wherein Rf is a Cfluorinated alkyl group (which may contain an oxygen atom forming an ether bond).

Crosslinkable prepolymer, its production process and its uses

To provide a crosslinkable fluorinated aromatic prepolymer which is capable of forming a cured product having a low relative permittivity, high heat resistance, low birefringence and high flexibility, and its uses. A crosslinkable fluorinated aromatic prepolymer which is obtained by subjecting a compound (Y-1) having a crosslinkable functional group (A) and a phenolic hydroxyl group and/or a compound (Y-2) having a crosslinkable functional group (A) and a fluorinated aromatic ring, to a condensation reaction in the presence of a HF-removing agent, with a fluorinated aromatic compound (B) represented by the formula (1): (wherein n is an integer of from 0 to 2, each of a and b which are independent of each other, is an integer of 0 to 3, and each of Rfand Rfrepresents a fluorinated alkyl group having at most 8 carbon atoms and a compound (C) having at least 3 phenolic hydroxyl groups, and which has crosslinkable functional groups (A) and ether bonds and has a number average molecular weight of from 1&#xd7;10to 5&#xd7;10.

Crosslinkable fluorinated aromatic prepolymer and its uses

To provide a negative photosensitive fluorinated aromatic resin composition having a low relative permittivity, low water absorptivity, high heat resistance and high productivity. A negative photosensitive fluorinated aromatic resin composition comprising the following fluorinated aromatic prepolymer, a photosensitizer and a solvent. Here the fluorinated aromatic prepolymer is a fluorinated aromatic prepolymer which is obtained by subjecting either one or both of a compound (Y-1) having a crosslinkable functional group (A) and a phenolic hydroxyl group, and a compound (Y-2) having a crosslinkable functional group (A) and a fluorinated aromatic ring, to a condensation reaction in the presence of a HF-removing agent, with a fluorinated aromatic compound (B) represented by the following formula (1): (wherein n is an integer of from 0 to 3, each of a and b which are independent of each other, is an integer of from 0 to 3, each of Rfand Rfis a fluorinated alkyl group having at most 8 carbon atoms, and F in the aromatic ring represents that hydrogen atoms of the aromatic ring are all substituted by fluorine atoms), and a compound (C) having at least 3 phenolic hydroxyl groups, and which has crosslinkable functional groups (A) and ether bonds and has a number average molecular weight of from 1&#xd7;10to 5&#xd7;10.

Negative photosensitive fluorinated aromatic resin composition

A crosslinkable fluorinated aromatic prepolymer which is capable of forming a cured product having high transparency, a low relative permittivity, high heat resistance, low birefringence and high flexibility, and which is obtained by subjecting a compound (Y-1) having a polymerizable double bond (A) and/or a phenolic hydroxyl group and a compound (Y-2) having a polymerizable double bond (A) and a fluorinated aromatic ring, to a condensation reaction in the presence of a HF-removing agent, with a particular fluorinated aromatic compound (B) and a compound (C) having at least 3 phenolic hydroxyl groups, the respective phenolic hydroxyl groups not being present in the same aromatic ring, and which has polymerizable double bonds (A) and ether bonds and has a number average molecular weight of from 1&#xd7;10to 5&#xd7;10.

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Chiyoda-ku, Japan

Kaori Tsuruoka