Fluorescent pastes and films

1. A method comprising:

contacting a plurality of film compounds with a plurality of fluorescent particles such that the plurality of film compounds bind to the plurality of fluorescent particles to form reactive particles, wherein each of the plurality of film compounds has a reactive group and a surface bonding group that is bound to a particle of the plurality of fluorescent particles; and

blending a solvent, the reactive particles, and a crosslinking agent so as to form a fluorescent paste, the crosslinking agent having a plurality of crosslinking reaction groups that crosslink two or more of the reactive particles together upon curing

wherein the surface bonding group includes a silicon group and each of the reactive groups is selected from the group consisting of an epoxy group, an amino group, and an imino group.

2. The method of claim 1 , further comprising:

blending a photo-curing agent with the plurality of film compounds and the reactive particles; and

irradiating the photo-curing agent with light such that the photo-curing agent initiates polymerization of the reactive groups.

3. The method of claim 1 , further comprising:

linking a substrate linker to a substrate such that the substrate linker extends a second reactive group away from the substrate; and

linking the reactive group of the plurality of film compounds to the second reactive group of the substrate linker with a crosslinking agent having a plurality of crosslinking groups so as to form a first reactant product coupled to the crosslinking agent and a second reactant product coupled to the crosslinking agent so as to link the fluorescent particle to the substrate.

4. The method of claim 3 , wherein linking the reactive group of the plurality of film compounds to the second reactive group of the substrate linker comprises:

(1) reacting an epoxide of the substrate linker with an amino or imino of the crosslinking agent; and

reacting an epoxide of the plurality of film compounds with an amino or imino of the crosslinking agent; or

(2) reacting an amino or imino of the plurality of film compounds with an epoxy or isocyanate of the crosslinking agent; and

reacting an amino or imino of the substrate linker with an epoxy or isocyanate of the crosslinking agent, wherein the crosslinking agent includes two or more epoxy groups or two or more isocyanate groups.

5. The method of claim 3 , wherein linking the substrate linker to a substrate and linking the reactive group of the plurality of film compounds to the substrate linker with a crosslinking agent so as to link the fluorescent particle to the substrate comprises:

providing the substrate, the substrate having one or more first active hydrogen groups;

linking a first plurality of alkylsilane linkers to the substrate through the first active hydrogen group, the first alkylsilane linker having a group selected from the group consisting of a first epoxide group, an amino group, and an imino group;

providing the plurality of fluorescent particles, the plurality of fluorescent particles having one or more second active hydrogen groups;

linking a second plurality of alkylsilane linkers to the each of the plurality of fluorescent particles through the second active hydrogen groups, the second alkylsilane linkers having a group selected from the group consisting of a first epoxide group, an amino group, and an imino group; and

linking the first epoxide group, amino group, or imino group of the first alkylsilane linker to the second epoxide group, amino group, or imino group of the second alkylsilane linker with the crosslinking agent so as to form a first layer of particles having a pattern.

6. The method of claim 3 , further comprising:

blending a photo-curing agent into the fluorescent paste; and

irradiating the photo-curing agent with light such that the photo-curing agent initiates polymerization of the reactive groups of the substrate linker and the plurality of film compounds.

7. The method of claim 6 , further comprising forming a pattern of fluorescent particles on the substrate using a patterning treatment that selectively irradiates one or more portions of the substrate.

8. A method comprising:

contacting a plurality of film compounds with a plurality of fluorescent particles such that each of the plurality of film compounds form a film coated on each of the fluorescent particles, each of the plurality of film compounds having a reactive group and a surface bonding group, the surface bonding group bonding to the plurality of fluorescent particles to form reactive fluorescent particles; and

blending a solvent, the reactive fluorescent particles, and a curing agent having a plurality of crosslinking reaction groups which can react with the reactive groups of the film to bind the plurality of fluorescent particles together, wherein the curing agent is selected from the group consisting of compounds having two or more epoxy groups, compounds having two or more isocyanate groups, and imidazole compounds.

9. The method of claim 8 , wherein the surface bonding group of the film compound includes a silicon group and the reactive group of each of the plurality of film compounds is selected from the group consisting of an epoxy group, an amino group, and an imino group.

10. The method of claim 8 , further comprising:

blending a photo-curing agent with the solvent, the reactive fluorescent particles, and the curing agent; and

irradiating the photo-curing agent with light such that the photo-curing agent initiates polymerization of the reactive groups.

11. The method of claim 8 , the method further comprising:

linking a second plurality of film compounds to a substrate to form a substrate coated with a film, the second plurality of film compounds providing a second reactive group extending away from the substrate that can react with the plurality of crosslinking reaction groups to form a bond; and

linking the reactive group of the film compounds of the reactive fluorescent particles to the second reactive group of the second film compounds forming a film coat on the substrate with the curing agent having the plurality of crosslinking reaction groups so as to link the fluorescent particles to the substrate.

12. The method of claim 11 , wherein the reactive group of the film compound coating the particle comprises an epoxy group or an isocyanate group, the reactive group of the film compound coating the substrate comprises an epoxy group or an isocyanate group, and the plurality of crosslinking reaction groups of the curing agent comprise an amino or imino group, the method comprising reacting the epoxy groups of the film compounds with the amino or imino groups of the plurality of crosslinking reaction groups.

13. The method of claim 11 , wherein the reactive group of the film compound coating the particle comprises an amino group or an imino group, the reactive group of the film compound coating the substrate comprises an amino group or an imino group, and the plurality of crosslinking reaction groups of the curing agent comprise an epoxy group or an isocyanate group, the method comprising reacting the reactive groups of the film compounds with the plurality of crosslinking reaction groups of the curing agent.

14. The method of claim 8 , wherein the plurality of fluorescent particles comprise cadmium sulfide particles.

15. The method of claim 8 , wherein the curing agent comprises an imidazole.

16. The method of claim 15 , wherein the curing agent comprises 2-methylimidazole.

17. A method of forming a fluorescent paste, the method comprising:

coating a plurality of fluorescent particles with film compounds to form reactive fluorescent particles with a film coated on each of the plurality of fluorescent particles, wherein each film compound has an epoxy reactive group and a surface bonding group that is bound to one of the plurality of fluorescent particles; and

blending the reactive fluorescent particles with an imidazole curing agent which can react with the epoxy reactive groups of the reactive fluorescent particles to bind the plurality of fluorescent particles together.

18. The method of claim 17 , wherein blending the reactive fluorescent particles with the imidazole curing agent is achieved in a solvent.

19. The method of claim 17 , wherein the curing agent comprises 2-methylimidazole.