Method and system for transferring a patterned material
A method of transferring a material to a substrate includes selectively depositing the material on a surface of an applicator and contacting the surface of the applicator to the substrate. The material can form a pattern on the surface of the applicator. The pattern can be preserved when the material is transferred to the substrate. The material can be deposited on the applicator by ink jet printing.
1 . A method of transferring a material to a substrate comprising:
depositing the material selectively on a surface of an applicator; and
contacting the surface of the applicator with the substrate.
2 . The method of claim 1 , wherein the material substantially free of solvent before contacting.
3 . The method of claim 1 , wherein depositing the material selectively includes forming a pattern including the material on the surface of the applicator.
4 . The method of claim 3 , wherein a feature of the pattern has a dimension of less than 1000 micrometers.
5 . The method of claim 3 , wherein a feature of the pattern has a dimension of less than 100 micrometers.
6 . The method of claim 3 , wherein a feature of the pattern has a dimension of less than 10 micrometers.
7 . The method of claim 1 , wherein forming the pattern includes ink jet printing the material.
8 . The method of claim 1 , wherein the surface of the applicator includes an elevation or a depression.
9 . The method of claim 1 , wherein the surface of the applicator is substantially free of elevations and depressions.
10 . The method of claim 1 , wherein the applicator includes an elastomeric material.
11 . The method of claim 1 , further comprising modifying the surface of the applicator before depositing the material selectively on the surface of the applicator.
12 . The method of claim 11 , wherein modifying the surface of the applicator includes contacting the surface of the applicator with a composition selected to release at least a portion of the material from the applicator upon contact with a substrate.
13 . The method of claim 12 , wherein the composition includes an aromatic organic polymer.
14 . The method of claim 1 , further comprising depositing a second material selectively on the surface of the applicator.
15 . The method of claim 14 , wherein depositing the second material selectively includes forming a pattern on the surface of the applicator.
16 . The method of claim 14 , wherein depositing the second material includes ink jet printing.
17 . The method of claim 1 , wherein the surface of the applicator is in continuous contact with the substrate.
18 . The method of claim 1 , wherein the material includes a nanomaterial.
19 . The method of claim 18 , wherein the nanomaterial includes a semiconductor nanocrystal.
20 . A method of transferring a plurality of materials to a substrate comprising:
depositing a first material selectively on a surface of an applicator;
depositing a second material selectively on the surface of the applicator; and
contacting the surface of the applicator with the substrate.
21 . The method of claim 20 , wherein the first material is substantially free of solvent before contacting.
22 . The method of claim 21 , wherein the second material is substantially free of solvent before contacting.
23 . The method of claim 20 , wherein depositing the first material includes forming a pattern on the surface of the applicator.
24 . The method of claim 23 , wherein depositing the second material includes forming a pattern on the surface of the applicator.
25 . The method of claim 24 , wherein depositing the first material includes ink jet printing.
26 . The method of claim 25 , wherein depositing the second material includes ink jet printing.
27 . A system for transferring a material to a substrate comprising:
an ink jet print head including a reservoir, wherein the reservoir holds the material; and
an applicator having a surface arranged to receive the material from the ink jet print head.
28 . The system of claim 27 , further comprising a substrate arranged to contact the surface of the applicator.
29 . The system of claim 28 , wherein the surface of the applicator is configured to be in continuous contact with the substrate.
30 . The system of claim 28 , wherein the applicator is configured to move the surface of the applicator with respect to the ink jet print head.
31 . The system of claim 28 , wherein the applicator is mounted on a drum, the drum being configured to rotate.
32 . The system of claim 31 , wherein the surface of the applicator is configured to roll on the substrate.
33 . The system of claim 27 , wherein the surface of the applicator includes an elevation or a depression.
34 . The system of claim 27 , wherein the surface of the applicator is substantially free of elevations and depressions.
35 . A method of making a light emitting device, comprising:
ink jet printing a material on a surface of an applicator; and
contacting the surface of the applicator with a substrate.
36 . The method of claim 35 , wherein ink jet printing the material includes forming a pattern on the surface of the applicator.
37 . The method of claim 35 , wherein the material includes a light emitting material.
38 . The method of claim 37 , wherein the light emitting material includes a semiconductor nanocrystal.
39 . The method of claim 35 , wherein the substrate includes an electrode, a hole transport material, an electron transport material, a hole injection material, an electron injection material, or a combination thereof.
40 . A device for applying a material comprising an applicator and a material forming a pattern on a surface of the applicator.
41 . The device of claim 40 , wherein the surface of the applicator includes an elevation or a depression.
42 . The device of claim 40 , wherein in the surface of the applicator is substantially free of elevations or depressions.
43 . The device of claim 40 , wherein the applicator includes an elastomeric material.
44 . The device of claim 40 , further comprising a second material forming a pattern on the surface of an applicator.