39 results about "Organic nonlinear optical materials" patented technology

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>.

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.