47results about How to "The contact interface is stable" patented technology

The invention discloses an organic electroluminescent device containing a triazine compound and application thereof. The device comprises a hole transport layer, a luminescent layer and an electron transfer layer. The luminescent layer material of the device contains a compound containing a triazine group. The structural formula of the compound is as shown in the general formula (1). As the triazine material has small triplet state and singlet energy difference, it is easy to realize energy transfer between host-guest materials, energy originally lost in the form of heat is easy to utilize, radiative transition efficiency of the luminescent layer is enhanced, and high efficiency of the device is easier to obtain. When a doped material is selected as a fluorescent material, luminous radiation of the doped material is easier to obtain, and long life of the material is easier to realize.

The invention discloses an organic light emission diode device containing a xanthone compound and an application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound with xanthone as a core group, and the structural formula of the compound is shown in the general formula (1). According to the material with xanthone as the core group, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, and the high efficiency of the device can be acquired more easily. Further, when a fluorescent material is selected as a doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention discloses a dual-substituent-group-9-fluorenone compound-containing organic light-emitting device and an application thereof. The device comprises a hole transport layer, a light emitting layer and an electron transfer layer; the light emitting layer of the device adopts the material of the dual-substituent-group-9-fluorenone-group-containing compound which is as shown in the general formula (1). The adopted dual-substituent-group-9-fluorenone-group compound has relatively low triplet state and singlet state energy difference, so that energy transfer between host-guest materials can be realized easily; therefore, energy which is originally dissipated in a heat form can be obtained and utilized easily, thereby obtaining high efficiency of a device more easily; and furthermore, when a fluorescent material is selected as a doping material, the light emitting radiation of the doping material can be obtained more easily, thereby achieving long service life of the material more easily.

The invention discloses an organic light emission diode device containing a ketone and nitrogen heterocycle compound and an application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound comprising ketone and nitrogen heterocycle groups, and the structural formula of the compound is shown in the general formula (1). According to the ketone and nitrogen heterocycle material, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, the radiative transition efficiency of the light emission layer is enhanced, and the high efficiency of the device can be acquired more easily. Further, when a fluorescent material is selected as a doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention discloses an organic light emission diode device containing a diaryl ketone compound and an application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound comprising diaryl ketone, and the structural formula of the compound is shown in the general formula (1). According to the diaryl ketone material, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, the radiative transition efficiency of the light emission layer is enhanced, and the high efficiency of the device can be acquired more easily. Further, when a fluorescent material is selected as a doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention discloses an organic light emission diode device and application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound comprising a 1, 8-diazafluoran-9-one group, and the structural formula of the compound is shown in the general formula (1). According to the 1, 8-diazafluoran-9-one material, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, the radiative transition efficiency of the light emission layer is enhanced, and the high efficiency of the device can be acquired more easily. Further, when a 1, 8-diazafluoran-9-one compound material is directly used as a doped material, or the 1, 8-diazafluoran-9-one compound serves as a host material, and a fluorescent material is selected as the doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention discloses an in-ear-type non-invasive ear vagus nerve stimulator and a pulse output method thereof. The stimulator comprises left and right two in-ear-type electrodes and a control device; both the left and the right in-ear-type electrodes comprise two electrodes, namely an auricular concha area bent electrode and an external auditory canal electrode, so that the stimulation electricfield current energy returns to the control device along respective loops; the in-ear-type electrodes also comprise a sound transmission hole penetrating the electrodes; electric-conduction retainingholes are arranged on the auricular concha area bent electrode and an external auditory canal electrode, and the electric-conduction retaining holes can protect a electric-conduction solvent from being volatilized; and the control device is internally provided with output waveform data corresponding to a plurality of treatment modes, and outputs different waveform data according to different treatment modes.

The invention discloses an organic light emission diode device containing a 10, 10-diaryl anthrone compound and an application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device is a compound with 10, 10-diaryl anthrone as a core group, and the structural formula of the compound is shown in the general formula (1). According to the material with the 10, 10-diaryl anthrone as the core group, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, and the high efficiency of the device can be acquired more easily. Further, when a fluorescent material is selected as a doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention relates to a compound with spirofluorene as a core, a preparation method thereof, and an application of the compound in an organic light-emitting device. The spirofluorene is adopted as the core of the compound, and is connected with an electron-donating group and an electron-withdrawing group in order to easily achieve electron blocking, so the high efficiency of the device can be easily obtained. The compound provided by the invention has a high glass transition temperature, a high molecular thermal stability, a suitable HOMO emerge level and a suitable LUMO energy level, and can effectively improve the photoelectric performances of the OLED and the lifetime of the OLEs by device structure optimization.

The invention discloses an organic electroluminescent device containing a chemical compound with dibenzocycloheptene as its core and the application thereof. The device comprises a hole transport layer, a light emitting layer, and an electron transport layer. The composing material for the light emitting layer contains a chemical compound with dibenzocycloheptene as its core. The optimized dibenzocycloheptene structure used by the chemical compound material matches the branched-chain structures represented by the formula 2, formula 3 and formula 4 to conveniently realize the energy transmission between the subject material and the object material so as to obtain the high efficiency of the device more easily. In addition, the chemical compound of the invention possesses relatively high glass transition temperature and molecular thermal stability as well as a proper HOMO and LUMO energy grade. With the optimization of the device structure, it is possible to effectively raise the optical performance and the service life of an OLED device.

The invention discloses an organic light emission diode device containing a mono substituent-9-fluorenone compound and an application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound containing a mono substituent-9-fluorenone group, and the structural formula is shown in the general formula (1). According to the used mono substituent-9-fluorenone group compound, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, and the high efficiency of the device can be acquired more easily. Further, when a fluorescent material is selected as a doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention discloses an organic light emission diode device containing a 9, 10-anthrone compound and an application thereof. The device comprises a hole transport layer, a light emission layer and an electron transport layer. The material of the light emission layer of the device comprises a compound containing a 9, 10-anthrone group, and the structural formula is shown in the general formula (1). According to the material containing the 9, 10-anthrone group, due to a small triplet and singlet energy difference, energy transfer between host and guest materials can be realized easily, energy that is originally lost in a heat form is easily available, and the high efficiency of the device can be acquired more easily. Further, when the material containing the 9, 10-anthrone compound is directly used as a doped material or the 9, 10-anthrone compound as a host material selects a fluorescent material as the doped material, light emission radiation of the doped material is acquired more easily, and a long service life of the material can be acquired more easily.

The invention discloses an organic light-emitting device containing a triazine and ketone compound and an application of the organic light-emitting device. The device comprises a hole transport layer, a light-emitting layer and an electron transport layer, wherein a material of the light-emitting layer of the device contains a compound employing triazine and ketone as core groups; and the structural formula of the compound is as shown in a general formula (1). The material employing the triazine and the ketone as the core groups has a relatively small triplet and singlet energy difference, so that energy transfer between a host material and a guest material is easy to implement; the energy which is dissipated in a heat manner in the past is easily obtained; the radiative transition efficiency of the light-emitting layer is improved; and high efficiency of the device is easier to obtain. Furthermore, when a fluorescent material is selected as the doped material, luminous radiation of the doped material is easier to obtain, so that long lifetime of the material is easier to obtain.

The invention discloses an organic electroluminescent device containing an acridine spiro anthrone compound, and the organic electroluminescent device comprises a hole transmission layer, a light-emitting layer, and an electron transmission layer. The material of the light-emitting layer of the device contains an acridine spiro anthrone group compound, and the structural formula of the compound is shown in a general formula (1). The acridine spiro anthrone group compound is smaller in triplet state and singlet state energy difference, so the compound can achieve the energy transmission between host-guest materials easily, enables the energy which is originally dissipated in a mode of heat to be easy to obtain and use, and improves the radiative transition efficiency of the light-emitting layer, thereby enabling the device to be able to obtain high efficiency in an easier way. Furthermore, when the doped material is a fluorescent material, the light-emitting radiation of the doped material is easier to obtain, and the service life of the material is enabled to be long.

The invention relates to a carbon-coated lithium titanium manganese phosphate composite material and a preparation method and application thereof in a lithium ion battery. The preparation method comprises the following steps: dissolving lithium dihydrogen phosphate, a manganese source and a titanium lactate ammonium salt chelate in water to form a mixed solution, and carrying out spray drying on the mixed solution to obtain a precursor; and mixing the precursor with an organic carbon source, calcining, and cooling to obtain the carbon-coated lithium titanium manganese phosphate composite material. The carbon-coated lithium titanium manganese phosphate composite material is applied to the lithium ion battery as an electrode material, and the assembled lithium ion battery has good stabilityand high coulombic efficiency.

The invention relates to a structure for improving ohmic contact performance of an N-polar surface GaN. The structure comprises a GaN material, a TiN thin layer (2) covering an epitaxial layer (1) ofthe N-polar surface GaN of the GaN material, and a metal laminated layer (3) covering the TiN thin layer (2). The invention has the following beneficial effects that the TiN thin layer has the advantages of high melting point, low work function and the like; the TiN thin layer can form a stable contact interface with the N-polar surface GaN under the condition of high temperature, so that the reaction between the ohmic contact metal and the N-polar surface GaN material is effectively inhibited, and after the ohmic metal layer is annealed in the atmosphere of protective gas, ohmic contact degradation cannot be caused, and better ohmic contact characteristics can be formed. According to the invention, the thermal stability of the ohmic contact of the N-polar surface GaN is improved, and thespecific contact resistivity of the ohmic contact of the N-polar surface GaN is reduced, so that the overall performance of the device is improved. The method is simple in process and high in repeatability and reliability.