Light-emitting material, method for producing light-emitting material and display apparatus

Abstract

A light-emitting material, a method for producing the light-emitting material and a display apparatus are provided. An average particle size of the light-emitting material is 0.1 μm to 30 μm, and an average distance between outermost quantum dots of a particle of the light-emitting material and a surface of the particle of the light-emitting material is 0.5 nm to 25 nm, or a minimum distance between the outermost quantum dots of a particle of the light-emitting material and the surface of the particle of the light-emitting material is 0.1 nm to 20 nm.

What is claimed is: 
     
         1 . A light-emitting material, wherein an average particle size of the light-emitting material is 0.1 μm to 30 μm, and a minimum distance between outermost quantum dots of a particle of the light-emitting material and a surface of the particle of the light-emitting material is 0.1 nm to 20 nm. 
     
     
         2 . A light-emitting material, wherein an average particle size of the light-emitting material is 0.1 μm to 30 μm, and an average distance between outermost quantum dots of a particle of the light-emitting material and a surface of the particle of the light-emitting material is 0.5 nm to 25 nm. 
     
     
         3 . The light-emitting material as claimed in  claim 1 , wherein the quantum dots are selected from the group consisting of silicon based nanocrystals, perovskite nanocrystals, II-VI group compound semiconductor nanocrystals, III-V group compound semiconductor nanocrystals and IV-VI group compound semiconductor nanocrystals. 
     
     
         4 . The light-emitting material as claimed in  claim 2 , wherein the quantum dots are selected from the group consisting of silicon based nanocrystals, perovskite nanocrystals, II-VI group compound semiconductor nanocrystals, III-V group compound semiconductor nanocrystals and IV-VI group compound semiconductor nanocrystals. 
     
     
         5 . The light-emitting material as claimed in  claim 1 , wherein the particle comprises:
 a core;   a package layer, wrapping the core; and   the quantum dots, disposed between the core and the package layer.   
     
     
         6 . The light-emitting material as claimed in  claim 5 , wherein a material of the core is porous. 
     
     
         7 . The light-emitting material as claimed in  claim 6 , wherein a surface mean aperture of the core is 3 nm to 100 nm. 
     
     
         8 . The light-emitting material as claimed in  claim 6 , wherein
 when the quantum dots are red light quantum dots, a surface mean aperture of the core is 7 nm to 30 nm,   when the quantum dots are green light quantum dots, a surface mean aperture of the core is 5 nm to 20 nm, and   when the quantum dots are blue light quantum dots, a surface mean aperture of the core is 3 nm to 15 nm.   
     
     
         9 . The light-emitting material as claimed in  claim 6 , wherein a specific surface area of the core is 100 m 2 /g to 1000 m 2 /g. 
     
     
         10 . The light-emitting material as claimed in  claim 5 , wherein a material of the package layer is selected from the group consisting of polysiloxane, glass, water glass and silicon dioxide. 
     
     
         11 . The light-emitting material as claimed in  claim 5 , wherein a thickness of the package layer is 0.1 nm to 20 nm. 
     
     
         12 . The light-emitting material as claimed in  claim 5 , wherein an average particle size of the core is 0.1 μm to 25 μm. 
     
     
         13 . The light-emitting material as claimed in  claim 5 , wherein the core has lipophilicity. 
     
     
         14 . The light-emitting material as claimed in  claim 2 , wherein the particle comprises:
 a core;   a package layer, wrapping the core; and   the quantum dots, disposed between the core and the package layer.   
     
     
         15 . The light-emitting material as claimed in  claim 14 , wherein a material of the core is porous. 
     
     
         16 . The light-emitting material as claimed in  claim 15 , wherein a surface mean aperture of the core is 3 nm to 100 nm. 
     
     
         17 . The light-emitting material as claimed in  claim 15 , wherein
 when the quantum dots are red light quantum dots, a surface mean aperture of the core is 7 nm to 30 nm,   when the quantum dots are green light quantum dots, a surface mean aperture of the core is 5 nm to 20 nm, and   when the quantum dots are blue light quantum dots, a surface mean aperture of the core is 3 nm to 15 nm.   
     
     
         18 . The light-emitting material as claimed in  claim 15 , wherein a specific surface area of the core is 100 m 2 /g to 1000 m 2 /g. 
     
     
         19 . The light-emitting material as claimed in  claim 14 , wherein a material of the package layer is selected from the group consisting of polysiloxane, glass, water glass and silicon dioxide. 
     
     
         20 . The light-emitting material as claimed in  claim 14 , wherein a thickness of the package layer is 0.1 nm to 20 nm. 
     
     
         21 . The light-emitting material as claimed in  claim 14 , wherein an average particle size of the core is 0.1 μm to 25 μm. 
     
     
         22 . The light-emitting material as claimed in  claim 14 , wherein the core has lipophilicity. 
     
     
         23 . A display apparatus, comprising: the light-emitting material as claimed in  claim 1 , wherein the display apparatus is a television, a digital camera, a digital video camera, a digital photo frame, a mobile phone, a notebook computer, a monitor for a computer, an audio reproduction device, a game machine or a vehicle display. 
     
     
         24 . A display apparatus, comprising: the light-emitting material as claimed in  claim 2 , wherein the display apparatus is a television, a digital camera, a digital video camera, a digital photo frame, a mobile phone, a notebook computer, a monitor for a computer, an audio reproduction device, a game machine or a vehicle display. 
     
     
         25 . A method for producing a light-emitting material, comprising:
 producing a core attached with quantum dots; and   mixing the core attached with the quantum dots with a package material to produce the light-emitting material, wherein a particle of the light-emitting material comprises the core, the quantum dots and a package layer, the package layer is composed of the package material and wraps the core, and the quantum dots are disposed between the core and the package layer.   
     
     
         26 . The method for producing the light-emitting material as claimed in  claim 25 , wherein the step of producing the core attached with the quantum dots comprises producing the core with an average particle size of 0.1 μm to 25 μm and attached with the quantum dots. 
     
     
         27 . The method for producing the light-emitting material as claimed in  claim 25 , wherein the package layer is obtained through a reaction of silicon oxide.