Organic, inorganic hybrid green-light material having a network structure, preparation and use thereof

Abstract

The invention relates to an organic, inorganic hybrid green-light light-emitting material having a network structure, preparation and use thereof. The composition comprises an end function POSS chip structural part, an end bi-function green-light light-emitting organic group part and a closed-end organic molecule. The mol ratio is 1: n: m-2n, wherein n is equal to 1-7, and n is greater than or equal to 1 and is less than or equal to m / 2. The preparation is as follows: according to the mol ratio of 1: n, using the end function POSS and the end bi-function luminous molecule under catalysis of cuprous salt by using methods, such as click chemical method, to prepare controllable organic, inorganic hybrid green-light light-emitting material having a network structure. The green-light material can be used in fields of all kinds of displays, optical communication, indoor decorative light source, three-dimensional storage, optical modulation and solar battery, and the like. The green-light material of the invention has the characteristics of easily designed and controlled structure, simple preparation process, environment-friendly property, good film-forming property, and the like.

Description

technical field [0001] The invention belongs to the field of green light emitting material and its preparation and application, in particular to an organic-inorganic hybrid green light material with a network structure and its preparation and application. Background technique [0002] The emergence of organic electroluminescent devices (Organic Light-Emitting Device, OLED) has brought a huge impact to display technology. Compared with other display technologies, OLED has significant advantages such as wide viewing angle, low energy consumption, fast response speed, ultra-thin, ultra-light, and easy molding and processing. Extensive attention and in-depth research. [0003] As one of the three primary colors, green light materials have developed rapidly in recent years. For example, Chinese patent CN1381543A discloses an energy transfer type main chain polymer light-emitting material, which realizes green light emission by controlling the content of naphthalimide derivative...

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Problems solved by technology

[0004] 1. The stability of small-molecule organic electroluminescent materials is not enough. With the use of the device, molecular aggregation, crystallization or decomposition will occur, resulting in fluorescence quenching and other color coordinate drift, and short service life;

[0005] 2. Although the polymer organic electroluminescent material (PLED) can improve a certain stability, its separation and purification have not yet reached the level of small molecules, resulting in low luminous purity of the material;

[0006] 3. When preparing devices, it is mostly used as a doping object, and the dispersion is uneven, resulting in uneven light emission, etc.

Jesse D.Froehlich et al. (Chem.Mater.2007, 19:4991) reported a multifunctional POSS organic-inorganic hybrid luminescent material, which effectively improved the thermal properties of the material, but the number of luminescent groups added to POSS And the hybrid molecular structure is uncontrollable, the obtained luminescent material is a mixture of different numbers of luminescent groups, the energy transfer between each group is uncontrollable, and as a result, the luminescence purity and luminescence wavelength are difficult to control

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