Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

101235 results about "Photochemistry" patented technology

Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible light (400–750 nm) or infrared radiation (750–2500 nm).

Organic electroluminescent element, illuminator, display and compound

An organic electroluminescent element comprising a light emission layer and a hole blocking layer adjacent to the light emission layer, wherein, (i) the light emission layer contains a compound having a specified partial structure and having a molecular weight of not more than 1700; and (ii) the hole blocking layer contains a derivative selected from the group consisting of a styryl derivative, a boron derivative and a carboline derivative.
Owner:KONICA MINOLTA INC

Aromatic amine derivatives and organic electroluminescent device using same

The present invention provides a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer, particularly a hole transporting layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Use of the aromatic amine derivative described above materialize an organic electroluminescence device which reduces a driving voltage and makes molecules less liable to be crystallized and which enhances a yield in producing the organic EL device and has a long lifetime.
Owner:IDEMITSU KOSAN CO LTD

Organic electroluminescence device and material for organic electroluminescence device

An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer includes at least one phosphorescent material and a host material represented by the following Formula (1).Ra—Ar1—Ar2—Rb   (1)In Formula (1):Ra and Rb each represent a substituted or non-substituted benzene ring or a substituted or non-substituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring and a picene ring; andAr1 and Ar2 each represent a substituted or non-substituted benzene ring or a substituted or non-substituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring and a picene ring.
Owner:IDEMITSU KOSAN CO LTD

Electroluminescent (EL) devices

The triazinewherein Ar1, Ar2, Ar3, and Ar4 are each independently an aryl; R1 and R2 are substituents selected from the group consisting of hydrogen, an alkyl, an aryl, an alkoxy, a halogen atom, and a cyano; R3 and R4 are each a divalent group L selected from the group consisting of -C(R'R'')-, alkylene, an oxygen atom, a sulfur atom, and -Si(R'R'')-, wherein R' and R'' are selected from the group consisting of hydrogen, alkyl, alkoxy, and aryl.
Owner:LG DISPLAY CO LTD

Organic electroluminescence device and material for organic electroluminescence device

An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. The organic thin-film layer includes at least one emitting layer. The at least one emitting layer contains at least one phosphorescent material and a host material represented by the following formula (1).Ra-Ar1-Rb  (1)In the formula, Ar1, Ra and Rb each represent a substituted or unsubstituted benzene ring or a condensed aromatic hydrocarbon ring selected from a substituted or unsubstituted naphthalene ring, a substituted or unsubstituted chrysene ring, a substituted or unsubstituted fluoranthene ring, a substituted or unsubstituted phenanthrene ring, a substituted or unsubstituted benzophenanthrene ring, a substituted or unsubstituted dibenzophenanthrene ring, a substituted or unsubstituted triphenylene ring, a substituted or unsubstituted benzo[a]triphenylene ring, a substituted or unsubstituted benzochrysene ring, a substituted or unsubstituted benzo[b]fluoranthene ring and a substituted or unsubstituted picene ring. Substituents for Ra and Rb are not aryl groups.
Owner:IDEMITSU KOSAN CO LTD

Platinum complex and light emitting device

Provision of a novel platinum complex which is useful as a material for a light-emitting device of good light emission characteristic and light emission efficiency, and a novel light-emitting material that may be utilized in various fields. A platinum complex represented by the following general formula (1): (in which two rings of ring A, ring B, ring C, and ring D represent nitrogen-containing heterocyclic rings which may have a substituent and the remaining two rings of them represent aryl rings or hetero aryl rings which may have a substituent, the ring A and the ring B, the ring A and the ring C or / and the ring B and the rind D may form condensed rings. Two of X1, X2, X3, and X4 represent nitrogen atoms coordination bonded to a platinum atom and the remaining two of them represent carbon atoms or nitrogen atoms. Q1, Q2, and Q3 each represents a bond, oxygen atom, sulfur atom or bivalent group, two of Z1, Z2, Z3, and Z4 represent coordination bonds, and the remaining two of them represent covalent bonds, oxygen atoms or sulfur atoms), and a light-emitting device containing the platinum complex.
Owner:TAKASAGO INTERNATIONAL CORPORATION

Formation of a liquid-like silica layer by reaction of an organosilicon compound and a hydroxyl forming compound

A method for depositing silicon oxide layers having a low dielectric constant by reaction of an organosilicon compound and a hydroxyl forming compound at a substrate temperature less than about 400° C. The low dielectric constant films contain residual carbon and are useful for gap fill layers, pre-metal dielectric layers, inter-metal dielectric layers, and shallow trench isolation dielectric layers in sub-micron devices. The hydroxyl compound can be prepared prior to deposition from water or an organic compound. The silicon oxide layers are preferably deposited at a substrate temperature less than about 40° C. onto a liner layer produced from the organosilicon compound to provide gap fill layers having a dielectric constant less than about 3.0.
Owner:APPLIED MATERIALS INC

Red phosphorescent compounds and organic electroluminescent devices using the same

Disclosed herein are red phosphorescent compounds of the following Formulas 1 to 4:
wherein
 is
    •  R1, R2 and R3 are independently a C1-C4 alkyl group, R4, R5, R6 and R7 are independently selected from hydrogen, C1-C4 alkyl groups and C1-C4 alkoxy groups, and
 is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione, and 2,2-dimethyl-3,5-hexanedione;
wherein
 is
  •  R1 and R2 are independently selected from C1-C4 alkyl groups and C1-C4 alkoxy groups, R3, R4, R5 and R6 are independently selected from hydrogen, C1-C4 alkyl groups and C1-C4 alkoxy groups, and
  •  is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione;
    wherein
     is
  •  R1 and R2 are independently selected from C1-C4 alkyl groups and C1-C4 alkoxy groups, R3, R4, R5 and R6 are independently selected from hydrogen, C1-C4 alkyl groups and C1-C4 alkoxy groups, and
  •  is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione; and
    wherein
     is
  •  R1 and R2 are independently selected from C1-C4 alkyl groups and C1-C4 alkoxy groups, R3, R4, R5 and R6 are independently selected from hydrogen, C1-C4 alkyl groups and C1-C4 alkoxy groups, and  is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3-propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione. Further disclosed herein is an organic electroluminescent (EL) device comprising an anode, a hole injecting layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injecting layer, and a cathode laminated in this order wherein one of the red phosphorescent compounds is used as a dopant of the light-emitting layer.
  • Owner:LG DISPLAY CO LTD
    Who we serve
    • R&D Engineer
    • R&D Manager
    • IP Professional
    Why Eureka
    • Industry Leading Data Capabilities
    • Powerful AI technology
    • Patent DNA Extraction
    Social media
    Try Eureka
    PatSnap group products