A host-guest type organic long-afterglow crystal material, a preparation method and application thereof

Abstract

The application belongs to the technical field of organic afterglow crystal materials, and particularly relates to a host-guest type organic long afterglow crystal material and a preparation method and application thereof. The host-guest type organic long afterglow crystal material provided by the application ingeniously selects electron-rich diphenylamine material which is easy to crystallize and cheap and easy to obtain as a host material, and simultaneously introduces an electron-rich aniline derivative of the same type which is similar in structure and cheap and easy to obtain as a guest, thereby constructing a series of crystal materials with regular structures, and obtaining a series of new long afterglow light-emitting materials with adjustable colors (from yellow to green). The afterglow time of the material is more than 2s, the material has good afterglow light-emitting performance, and has good environmental stability to water and oxygen, thereby showing the application potential of the material in the fields of information encryption and anti-counterfeiting, and being capable of providing a theoretical basis and a material basis for practical applications such as data encryption and anti-counterfeiting.

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