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39 results about "Organic nonlinear optical materials" patented technology

Organic materials are expected to have relatively strong nonlinear optical properties due to delocalized electrons at π-π* orbitals. This expectation explains extensive search for better NLO materials among organic crystals.

Methyl pyridinium with organic two-photon absorption materia, and preparation method and application thereof

The invention relates to the field of organic nonlinear optical materials and relates to methyl pyridinium with an organic two-photon absorption material, and a preparation method and the application of the methyl pyridinium. The structural formula of the product is described in structural formula (I); the preparation method comprises the steps of taking 2,6-dimethyl pyridine as a raw material and finally obtaining a compound (I) by conducting oxidizing reaction, esterification reaction, methylolation reaction, halogenation reaction, nucleophilic addition reaction, Wittig reaction and the final methylation reaction. The raw materials are easy to access, and the synthesis steps are simple. The compound (I) has excellent two-photon absorption performance and good water solubility and is an ideal biological fluorescence probe; an obvious solvatochromism phenomenon easily occurs, the compound can be used for detecting water content in a common organic solvent, can also be used as a fluorescent probe for detecting the PH value in a solution system, has a series of advantages of high sensibility, quick response, identification by naked eyes and the like, and has an excellent application prospect.
Owner:SHANGHAI NORMAL UNIVERSITY

Spirofluorene xanthene phosphine oxide electro-phosphorescent main materials and synthesis and application methods thereof

The invention relates to spirofluorene xanthene phosphine oxide electro-phosphorescent main materials and synthesis and application methods thereof, belongs to the field of photoelectric material science and technology, and in particular relates to four spirofluorene xanthene organic phosphine oxide materials and application of the materials in the field of organic electronics such as organic electroluminescent materials, organic solar cells, organic field-effect tubes, dye laser, organic nonlinear optical materials, fluorescent probes and the like. The series of materials are obtained by introducing diphenyl phosphine oxide groups to the 2nd site, the 2nd and 7th sites, the 2nd' site and the 2nd' and 7th' sites of spirofluorene xanthene respectively. The series of compounds have good charge transfer performance, thermal stability and high triplet energy level (ET=-2.86eV), and can be used as main materials and applied in phosphorescent devices. When the series of compounds are applied in the organic electro-phosphorescent devices, the maximum external quantum efficiency is 10.78 percent and the maximum brightness is 8,582cd/m<2> in the blue phosphorescent device; and in the green phosphorescent device, the maximum external quantum efficiency is 19.1 percent, and the maximum brightness is 16,943cd/m<2>.
Owner:NANJING FANGYUAN GLOBAL DISPLAY TECH

Triphenylamine two-photon fluorescence probe compound and preparation method and application thereof

The invention belongs to the field of organic nonlinear optical materials, and particularly relates to a triphenylamine two-photon fluorescence probe compound and a preparation method and an application thereof. The preparation method of the triphenylamine two-photon fluorescence probe compound comprises the following steps of: injecting anhydrous benzene into 4-nitrapyrin-2, 6-dimethyl isophthalate and triphenylphosphine under the protection of nitrogen; increasing temperature, refluxing, and cooling; filtering and washing to obtain chlorination-4-methylene triphenylphosphine group-pyridine-2,6-dimethyl isophthalate, and dissolving into methanol; mixing and stirring tri(4-formylphenyl)amine and absolute methanol; adding the methanol solution of the chlorination-4-methylene triphenylphosphine group-pyridine-2,6-dimethyl isophthalate and the methanol solution of sodium methylate; stirring at 0-5 DEG C for 1-2 hours, stirring at normal temperature for 3-4 hours; separating through column chromatography. The triphenylamine two-photon fluorescence probe compound disclosed by the invention has the advantages of outstandingly enhanced two-photon absorption section, good water solubility, higher reaction activity and very high coordination capacity and can be applied to silver ion detection and pH detection.
Owner:SHANGHAI NORMAL UNIVERSITY

Fluorene derivative containing large conjugated molecule and preparation thereof

InactiveCN101302219ALower energy gapLarge nonlinear optical coefficientOrganic chemistryLuminescent compositionsSolubilityQuinone
The invention relates to a fluorene derivative containing macro conjugated molecules and a method for preparing the same. The macro conjugated molecule fluorene derivative has 2, 3, 6, 7-tetraamino-9, 9'-dialkyl fluorene as a raw material which is added to an organic solvent respectively together with phenanthrenequinone, acenaphthene quinone or bis-carbonyl pyrene derivatives and strong base; under the protection of inert gas, reflux reaction is carried out to the materials, so as to prepare a series of trapezoidal conjugated molecules containing fluorine structures. Alkyl surrounding the molecules helps to overcome solubility reduction caused by the high-plane rigid structure of the molecules, which improves the dissolution processing performance of material molecules. Meanwhile, the conjugation of pi electrons on a skeleton of the trapezoidal conjugated molecules is intensified further, which can reduce the energy gaps of the molecules, increase the nonlinear optical coefficients of the molecules remarkably, play a certain role in overcoming the disadvantages that the prior organic nonlinear micromolecule material is poor in chemical stability and mechanical strength, etc. The fluorene derivative can be widely applied to the organic nonlinear optical material field.
Owner:DALIAN UNIV OF TECH

Spirofluorene xanthene phosphine oxide electro-phosphorescent main materials and synthesis and application methods thereof

The invention relates to spirofluorene xanthene phosphine oxide electro-phosphorescent main materials and synthesis and application methods thereof, belongs to the field of photoelectric material science and technology, and in particular relates to four spirofluorene xanthene organic phosphine oxide materials and application of the materials in the field of organic electronics such as organic electroluminescent materials, organic solar cells, organic field-effect tubes, dye laser, organic nonlinear optical materials, fluorescent probes and the like. The series of materials are obtained by introducing diphenyl phosphine oxide groups to the 2nd site, the 2nd and 7th sites, the 2nd' site and the 2nd' and 7th' sites of spirofluorene xanthene respectively. The series of compounds have good charge transfer performance, thermal stability and high triplet energy level (ET=-2.86eV), and can be used as main materials and applied in phosphorescent devices. When the series of compounds are applied in the organic electro-phosphorescent devices, the maximum external quantum efficiency is 10.78 percent and the maximum brightness is 8,582cd / m<2> in the blue phosphorescent device; and in the green phosphorescent device, the maximum external quantum efficiency is 19.1 percent, and the maximum brightness is 16,943cd / m<2>.
Owner:NANJING FANGYUAN GLOBAL DISPLAY TECH

Triphenylamine two-photon fluorescence probe compound and preparation method and application thereof

The invention belongs to the field of organic nonlinear optical materials, and particularly relates to a triphenylamine two-photon fluorescence probe compound and a preparation method and an application thereof. The preparation method of the triphenylamine two-photon fluorescence probe compound comprises the following steps of: injecting anhydrous benzene into 4-nitrapyrin-2, 6-dimethyl isophthalate and triphenylphosphine under the protection of nitrogen; increasing temperature, refluxing, and cooling; filtering and washing to obtain chlorination-4-methylene triphenylphosphine group-pyridine-2,6-dimethyl isophthalate, and dissolving into methanol; mixing and stirring tri(4-formylphenyl)amine and absolute methanol; adding the methanol solution of the chlorination-4-methylene triphenylphosphine group-pyridine-2,6-dimethyl isophthalate and the methanol solution of sodium methylate; stirring at 0-5 DEG C for 1-2 hours, stirring at normal temperature for 3-4 hours; separating through column chromatography. The triphenylamine two-photon fluorescence probe compound disclosed by the invention has the advantages of outstandingly enhanced two-photon absorption section, good water solubility, higher reaction activity and very high coordination capacity and can be applied to silver ion detection and pH detection.
Owner:SHANGHAI NORMAL UNIVERSITY
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