43results about How to "Deep HOMO level" patented technology

The invention discloses a compound containing aza-spirofluorene and nitrogen six-membered heterocycle and application of the compound to an OLED (Organic Light Emitting Diode). The compound contains an aza-spirofluorene structure and an aza-six-membered heterocyclic structure; in addition, at least one N is arranged on the spirofluorene structure; and both two groups are strong electron groups, have deep HOMO energy level and high electron mobility, and are suitably used as a hole-blocking material or an electron transport material. A structure containing a hole group of the compound disclosed by the invention can balance electrons and holes of the material, so that the material can be used as a main body material of a partially-electronic luminescent layer; besides, the compound disclosed by the invention has higher group rigidity and has the characteristics of low possibilities of intermolecular crystallization and aggregation and high film-forming property; the compound serving as an organic electroluminescence functional layer material is applies to an OLED device; current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; and besides, the service life of the device is obviously prolonged.

The invention discloses a compound containing aza-spirofluorene and nitrogen-containing hexa-heterocycle and application of the compound in an organic light emission diode device. The compound contains aza-spirofluorene and aza-hexatomic ring structures, and the spirofluorene structure is provided with two symmetrical Ns; the two radical groups are strong electron radical groups and have the deep HOMO energy level and the high electron mobility, and the compound is suitable for serving as a hole-blocking material or an electron transport material for application; the compound contains the structure of the hole radical group and an electron and a hole which can balance the material, and the material can serve as partial electron type luminous layer main material to use; in addition, the compound radical group is high in rigidity and has the advantages of being not likely to crystallize between molecules or aggregate and having the good film-forming property. After the compound serves as organic light emitting function layer material to be applied to the OLED device, the current efficiency, power efficiency and external quantum efficiency of the device are all greatly improved; meanwhile, the service life of the device is prolonged very obviously.

The invention discloses a S,S-dioxo-dibenzothiophene unit-containing electron donor polymer and a use thereof. The main chain of the S,S-dioxo-dibenzothiophene unit-containing electron donor polymer contains a S,S-dioxo-dibenzothiophene unit. Through Stille and Suzuki polymerization methods, a novel D-A structure conjugated polymer is constructed. The S,S-dioxo-dibenzothiophene unit has good flatness and high electronegativity. Through the S,S-dioxo-dibenzothiophene unit, the polymer has a deep HOMO energy level, strong intermolecular interaction, a high light-absorption coefficient, high mobility and high photoelectric response so that the related polymer has wide application prospects in solar cells or organic field effect transistors.

The present invention provides a nitrogen-containing heterocyclic compound and an organic electronic device including the same.

The invention discloses a compound with ketone as the core, a preparation method and application of the compound. The compound has small delta Est, reverse interstitial leaping of energy is facilitated, and the compound has a high triplet state energy level (T1) and appropriate HOMO and LUMO energy levels, and is suitable for being used as a main material of a luminescent layer of an organic electroluminescence device; and in addition, the compound has the strong group rigidity, and has the characteristics of difficult crystallization and difficult aggregation among molecules and good film formation. The compound is applied to an OLED device as an organic electroluminescence functional layer material, the current efficiency, the power efficiency and the external quantum efficiency of the device are all greatly improved, and meanwhile, the service life of the device is obviously prolonged.

The invention discloses a terpolymer containing a triazol isoindol-5,7(2H,6H)-dione unit and a preparation method and application thereof. The preparation method comprises the following step of enabling a monomer of an electron donor unit and a monomer containing the triazol isoindol-5,7(2H,6H)- dione unit to generate still coupling copolymerizing reaction, so as to obtain the ternary copolymer containing the triazol isoindoline-5,7(2H,6H)-diketone unit. The ternary copolymer containing the triazol isoindol-5,7(2H,6H)-dione unit has the advantages that the fluorescence property is realized; the absorbing range of sunlight is wider; the terpolymer can be well applied to the fields of preparation of light emitting layers of polymer light emitting diodes, polymer field effect transistors and activating layers of polymer solar batteries.

To provide a novel chrysene compound and an organic light-emitting device having high emission efficiency and excellent driving durability, provided is a novel triaryl-substituted chrysene compound represented by the general formula [1]:

wherein Ar₁ to Ar₃ each represent a substituent selected from the group consisting of a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthryl group, and a substituted or unsubstituted fluorenyl group.

A photoelectric conversion element according to an embodiment of the present disclosure includes a first electrode and a second electrode opposed to each other; and a photoelectric conversion layer provided between the first electrode and the second electrode, and including a first organic semiconductor material and a second semiconductor material that have mutually different mother skeletons, in which the first organic semiconductor material is fullerene or a fullerene derivative, and the second organic semiconductor material has a deeper HOMO level than the first organic semiconductor material.

The invention discloses a compound containing cyanobenzene or thiocyanobenzene, and applications in organic electroluminescent devices. According to the present invention, the compound comprises a cyanobenzene or thiocyanobenzene group, has deep HOMO energy level and high hole mobility, and can be used as a hole blocking material or electron transporting material; the compound has the structure containing the hole group so as to balance the electron and the hole of the material, such that the material can be used as the electron-biased light emitting layer host material; the compound has the group with strong rigidity, and further has characteristics of less intermolecular crystallization, less aggregation and good film forming property; and with the application of the compound as the organic electroluminescent function layer material in OLED devices, the current efficiency, the power efficiency and the external quantum efficiency of the device are greatly improved, and the service life of the device is significantly prolonged.

The invention discloses a conjugated polymer containing 1,2,3 triazol isobenzazole-5,7(2H,6H)-dione as well as a preparation method and an application of the conjugated polymer and belongs to the field of polymers applied to photoelectric materials and devices. The preparation method comprises the following steps: an electron donor unit D and a 2,6-R,R1-[1,2,3]triazol[4,5-f] isobenzazole-4,8-Ar1,Ar2-5,7(2H,6H)-dione monomer are subjected to still coupling copolymerization, and the conjugated polymer containing 1,2,3 triazol isobenzazole-5,7(2H,6H)-dione is obtained. The prepared conjugated polymer has fluorescence, has a wider absorption peak for sunlight and can be used for manufacturing active layers of a polymer light emitting diode device, a polymer field effect transistor and a polymer solar cell.

The invention discloses a compound with benzonitrile or thio-benzonitrile and application thereof in organic light-emitting devices. The compound is composed of a benzonitrile or thio-benzonitrile group, has deep HOMO (highest occupied molecular orbital) energy level and high electron migration rate, and is suitable for acting as a hole barrier material or an electron transport material. The holegroup structure contained in the compound can balance electrons and holes, so that the compound may act as a near-electron light-emitting layer main material; in addition, as the group of the compoundhas high rigidity, the compound features rarity of intermolecular crystallization or gathering, and good film-forming property. After the compound is applied as an organic light-emitting functional layer material to OLED devices, all the current efficiency, power efficiency and external quantum efficiency of the devices are greatly improved; the service lives of the devices are significantly extended.