White light polymer material, preparation method and applications thereof

Abstract

The present invention provides a polymer material having a structure represented by a general formula I, wherein x is more than 0 and is less than or equal to 0.995, y is more than or equal to 0.005 and is less than 1, x+y is equal to 1, n is an integer between 1-100, and R and R' are the same or different, and independently represent alkyl having a carbon atom number of 1-10. The polymer material has high stability and high luminous efficiency, and can improve the service life and the stability of the device; and due to the characteristic of the easy exciplex formation from the single polymer, various color group components in the polymer can be regulated to obtain the white light polymer material. The present invention further provides a white light device using the polymer material of the present invention. The formula I is defined in the specification.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent materials, and relates to a white light organic electroluminescent material, in particular to a white light organic electroluminescent polymer material. Background technique [0002] Semiconductor lighting is one of the most promising high-tech fields in the 21st century. Compared with traditional lighting sources such as incandescent lamps, fluorescent lamps, and high-pressure sodium lamps, semiconductor lighting sources have significant advantages such as long life, energy saving, and environmental protection. Trigger a revolution in lighting sources worldwide. [0003] Organic light-emitting diode (OLED) is a new light-emitting diode developed in recent years. Its simple preparation process, low working voltage, abundant material sources, high efficiency, low energy consumption, rich colors, planar light emission, ultra-thin, etc. Many excellent features have attracted wides...

AI Technical Summary

Problems solved by technology

Through the blue-orange two-color group (CN1580179A) or the red-green-blue three-color group (CN1632045A, CN1800297B) bonding to emit white light, the required white light can be effectively obtained by accurately adjusting the content of each component. The control requirements of the group are high, and it is not easy to obtain multiple batches of stable products; it is difficult to synthesize white light through a single polymer (CN1126729A), and it is easy to form exciplexes, resulting in broadband light emission

Images