18results about How to "Reduce the starting voltage" patented technology

The invention provides an electroluminescent material composition and an organic electroluminescent device.The electroluminescent material composition comprises a combination of a first organic electroluminescent material and a second organic electroluminescent material, and through structural design and synergistic compounding of the two kinds of organic electroluminescent materials, the organic electroluminescent material composition is prepared. The electroluminescent material composition has excellent photoelectric properties and carrier transport properties, realizes balanced transport of carriers, is used for organic electroluminescent devices, is especially suitable for being used as a main body material of a luminescent layer, regulates injection / transport balance of holes and electrons, prevents a large amount of carriers from being accumulated at an interface, and improves the luminous efficiency of the organic electroluminescent devices. The device has excellent luminous efficiency and stability, the service life of the device is remarkably prolonged, the starting voltage is lower, the comprehensive performance of the device is effectively improved, and the requirements for high-performance materials in current panel and display manufacturing are fully met.

The invention belongs to the field of organic electroluminescence, and provides an organic metal iridium complex, a preparation method and an organic electroluminescent device containing the organic metal iridium complex. The structural general formula of the organic metal iridium complex is shown in the specification. After the organic metal iridium complex provided by the invention is applied to the organic electroluminescent device, the starting voltage of the device is reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The invention relates to a boron-containing organic material, belongs to the technical field of organic luminescent materials, and also relates to an application of the compound in an organic electroluminescent device. The compound disclosed by the invention has a structure as shown in a formula (I). The compound disclosed by the invention has the characteristic of narrow spectrum emission, is beneficial to improving the luminous efficiency in a device, can effectively increase the recombination rate of excitons, and is beneficial to improving the efficiency and prolonging the service life of the device. # imgabs0 #

The present invention relates to a novel organic compound having the structure of the following formula (1): Rings A, B, C, D, and E independently represent aromatic rings or heteroaromatic rings, and two adjacent rings can be fused to form a ring containing X 1 or X 2 A five-membered ring or a six-membered ring; X 1 and X 2 are independently selected from one of O, S, N, C, and Si; m and n are independently 0, 1 or 2, and R 1 To R 5 They are independently selected from hydrogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C1-C10 alkoxy, halogen, cyano, nitro, hydroxyl, ester, silyl, amino, arylamino, heteroarylamino, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C3-C30 heteroaryl, and at least one of them is of formula G. When the compound of the present invention is used as a light-emitting layer material in an OLED device, it exhibits excellent device performance and stability. The present invention also protects an organic electroluminescent device using the compound of the general formula.

The present invention provides an organic compound and its application. The compound has a structure shown in formula (1). When the compound of the present invention is used in an organic electroluminescent device, especially as a luminescent dye material, the device driving voltage can be effectively reduced, the device luminescence efficiency can be improved, and the best effect can be achieved.

The invention relates to the technical field of organic photoelectric materials, in particular to a boron-nitrogen compound and an organic electroluminescent device using the same. According to the invention, weak electron withdrawing groups such as halogenated benzene, pyridine, monoazine, diazine, triazine, cyanophenyl and the like are introduced, so that the LUMO energy level of the MRTADF material is reduced, and the influence on the HOMO energy level is very small. In addition, while large HOMO and LUMO tracks of a BN rigid framework are continuously maintained to be overlapped, the LUMO track is distributed and extended to a weak electron withdrawing group, and the material has the characteristic of a certain charge transfer state. Therefore, the material provided by the invention shows a relatively obvious red shift behavior, and emission of green light and even yellow light is realized. The OLED device prepared from the compound has the advantages of low starting voltage, high luminous efficiency and longer service life, and can meet the requirements of current panel manufacturing enterprises on high-performance materials.

The present invention relates to a compound and its application, wherein the compound has a structure shown in Formula I, wherein the parent core is composed of azabenzoindolizine, and the structure of the compound has good electron deficiency, so it is conducive to the injection of electrons, and has a relatively larger planar structure, which improves the electron migration ability, thereby facilitating the improvement of the mobility of the electrons of the newly constructed molecule as a whole. The structural characteristics of the above two aspects can make the molecule as a whole show good electron injection and migration performance. Therefore, when the compound of the present invention is used as an electron transport layer material in an organic electroluminescent device, the electron injection and migration efficiency in the device can be effectively improved, thereby ensuring that the device obtains the excellent effects of high luminous efficiency and low starting voltage.

The present invention provides a compound and its application. The compound has a structure shown in formula (1). When the compound of the present invention is used in an organic electroluminescent device, especially as a luminescent dye material, the device excitation voltage can be effectively reduced, the device luminescence efficiency can be improved, and the best effect can be achieved.

The invention relates to a gas concentration measuring device and method. The gas concentration measuring device comprises a gas detection cavity, a temperature sensing assembly, a pressure sensing assembly, a light source supply device and a light sensing device, and is used for measuring the gas concentration of gas (such as ozone) to be measured. The temperature sensing assembly and the pressure sensing assembly respectively measure the temperature and the pressure of the gas to be measured. The light source supply device adopts a UV-LED as an ultraviolet light source and provides a first detection light beam and a correction light beam which have different ozone absorption brightness, and then the first detection light beam and the correction light beam are respectively divided into split light passing through gas to be detected and split light not passing through the gas to be detected by a light splitting assembly. The light sensing device can respectively measure the light intensity containing ozone and the light intensity not containing ozone of the first detection light beam and the correction light beam. By comparing the light intensity, the concentration of the ozone gas can be calculated according to the Beer-Lambert Law (Beer-Lambert Law).

The invention relates to an organic compound, belongs to the technical field of organic electroluminescence, and also relates to an organic electroluminescence device adopting the organic compound. The compound provided by the invention has a structure shown in the specification. The compound disclosed by the invention is simple to prepare and relatively good in thermal stability, and meanwhile, the compound disclosed by the invention can adjust the stability of a material, so that the photoelectric property of a device prepared from the compound disclosed by the invention is finally ensured to be obviously improved. # imgabs0 #

This invention provides a triarylboron-modified fluorescent material, its preparation method, and its applications. The triarylboron-modified fluorescent material is as shown in Compound I. The compound of this invention utilizes the electron-withdrawing ability and high steric hindrance of triarylboron to effectively accelerate the antisystem crossing rate of narrow-band luminescent materials, reducing intermolecular interactions, thereby improving quantum efficiency and suppressing the efficiency roll-off problem of organic electroluminescent devices. Furthermore, due to the typical electron-donating characteristics, strong resonance effect, and rigid molecular structure of this type of molecule, the emission spectrum becomes narrower, thus achieving very high purity green light emission.

The present invention relates to a compound and its application, wherein the compound has a structure shown in Formula I, and a naphthalene ring structure is introduced in the para position of aromatic amine to increase the molecular conjugation system, which is beneficial to strengthen the transmission of charge and improve the charge mobility of the molecule; at the same time, a condensed aromatic ring of a specific structure is introduced in the ortho position of aromatic amine, which can first increase the conjugation level of the entire molecule and improve the injection and transmission capacity of holes; secondly, the steric hindrance of the molecule can be increased to prevent the molecule from being excessively planarized and forming crystals at high temperatures. The compound of Formula I exhibits good hole injection and migration performance, and when it is used as a hole transport material or electron blocking material in an organic electroluminescent device, the efficiency roll-off of the device can be suppressed, and the hole injection and migration efficiency in the device can be effectively improved, thereby ensuring that the device obtains the excellent effect of low starting voltage and prolonging the life of the device.

The present invention belongs to the field of organic light-emitting materials and semiconductor technology, and relates to a porphyrin copper derivative and an electroluminescent device thereof. The structural formula of the porphyrin copper derivative is:. The middle position of the porphyrin copper derivative is a hydrocarbon group, which reduces the conjugation degree of the porphyrin copper derivative. The emission wavelength of the electroluminescent device prepared based on the porphyrin copper derivative is in the orange light range, which is significantly shorter than the emission wavelength (red light to near infrared light range) of the electroluminescent device prepared by the traditional porphyrin metal derivative. The porphyrin copper derivative of the present invention is used as a sensitizer or guest luminescent material in the light-emitting layer of the electroluminescent device, and the successful preparation of an electroluminescent device with a shorter emission wavelength can be achieved.

The invention discloses a semiconductor component and a manufacturing method thereof. The manufacturing method of the semiconductor component comprises the following steps. A plurality of grooves are formed in a substrate. A first gate dielectric material is formed on the substrate and in the plurality of grooves. The first gate dielectric material on the substrate between the plurality of grooves is at least partially removed to form a trench. A second gate dielectric material is formed in the trench. A gate conductor layer is formed on the second gate dielectric material, and a plurality of spacers are formed on sidewalls of the gate conductor layer. And removing a part of the first gate dielectric material to enable the left first gate dielectric material and the second gate dielectric material to form a gate dielectric layer. The gate dielectric layer includes a body portion and a first hump portion. The first hump part is located on the first edge of the main body part, and the thickness of the first hump part is larger than that of the main body part. A plurality of doped regions are formed in the substrate on both sides of the plurality of spacers.

The invention discloses an organic metal compound as well as a preparation method and application thereof, and relates to the technical field of organic electroluminescence. Functional groups such as benzene and biphenyl are introduced to a dibenzofuran ring main body, and electron withdrawing groups such as cyano or methyl are added to a benzene ring, so that compared with a contrast compound, the compound provided by the invention has the advantages that the molecular configuration is changed, a conjugated system is enlarged, and the electrochemical characteristics of the compound are adjusted; after the obtained organic compound is applied to the organic electroluminescent device, the starting voltage of the device is reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

This invention discloses an organometallic iridium complex, a luminescent material, and an organic electroluminescent device, relating to the field of organic electroluminescence technology. The structural formula of the organometallic iridium complex is shown in Formula I: ; wherein, R9, R... 10 R 11 and R 12 At least one of them is adamantane; R 13 R 14 and R 15 At least one of them is fluorine or cyano. This invention introduces electron-withdrawing groups, such as cyano or fluorine, onto the dibenzofuran ring host, thereby altering the molecular configuration of the compound, increasing the conjugated system, and regulating the electrochemical properties of the compound. This results in an organic compound that, when used in organic electroluminescent devices, lowers the device's startup voltage and improves its luminous efficiency and lifetime. Simultaneously, this invention adds adamantane at the pyridine position. The hydrophobicity of adamantane reduces the absorption of moisture by the OLED material, decreasing the corrosion of the device by water and oxygen, thus improving the material's lifetime.

The invention discloses a multi-mode working photoelectric energy collection interface circuit and a control method thereof, and the circuit comprises a cold start module which is used for generating a pulse signal; the auxiliary boosting module is electrically connected with the cold start module, responds to the pulse signal to generate an output voltage, charges and discharges through an inductor in the auxiliary boosting module to enable the output voltage to be larger than a first threshold value, a first control signal is generated, and the first control signal is used for increasing the photoelectric energy collection speed; the first control signal is also used for controlling the cold start module to close; and the main boosting module is electrically connected with the auxiliary boosting module, generates a second control signal when the output voltage is greater than a second threshold value, and makes the output voltage rise stably in response to the second control signal. According to the invention, rapid and efficient photoelectric energy collection can be realized under a relatively small power supply voltage.

The invention provides an organic compound and application thereof, and an organic electroluminescent device containing the organic compound, particularly relates to a boron-nitrogen-containing organic compound, belongs to the technical field of organic luminescent materials, and also relates to application of the compound in the organic electroluminescent device. The organic compound has a structure as shown in the following formula. The organic compound provided by the invention is beneficial to prolonging the service life of a device. # imgabs0 #