Coated substrate apparatus and method

Patent metadata

Field	Value
Publication number	US-9863057-B2
Application number	US-201414263864-A
Country	US
Kind code	B2
Filing date	Apr 28, 2014
Priority date	Apr 26, 2013
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A coated substrate is formed with aligned objects such as small molecules, macromolecules and nanoscale particulates, such as inorganic, organic or inorganic/organic hybrid materials. In accordance with one or more embodiments, an apparatus or method involves an applicator having at least one surface patterned with protruded or indented features, and a coated substrate including a solution-based layer of objects having features and morphology attributes arranged as a function of the protruded or indented features.

First claim

What is claimed is:

1. An apparatus comprising:
an applicator including a shearing blade having at least one surface patterned with protruded or indented features; and
a coated substrate including a solution-based layer of objects having a plurality of features and morphology attributes including at least one of nano-sized, micron-sized, millimeter-sized and molecule level, being configured and arranged as a function of the protruded or indented features, wherein the protruded or indented features of the applicator are separated by a pitch distance of between 50 nm and 1 mm such that application with the solution causes formation of a film on the substrate having the plurality of features and morphology attributes.

2. The apparatus of claim 1 , wherein the features are configured and arranged to set the direction of the morphology attributes based on a fluidic mix of the objects in the coating, and wherein the attributes include nano-sized objects.

3. The apparatus of claim 1 , wherein the coated substrate includes patterned features configured and arranged to control flow of the solution and spatial distribution of the objects on the substrate and wherein the attributes include micron-sized objects.

4. The apparatus of claim 1 , wherein
the objects include at least one of crystal-forming molecules and inorganic molecules, and
the coated substrate includes patterned features that are configured and arranged with the protruded or indented features of the applicator to control both nucleation and growth of crystalline structures from the objects.

5. The apparatus of claim 1 , wherein the solution-based layer exhibits the morphology attributes including domain size of respective objects in the solution-based layer that are configured and arranged as a function of the protruded or indented features, wherein types of the objects include at least one of:
polymers,
small molecules,
inorganic materials,
nano or micro-objects including one of particles, rods, wires, and tubes, and
a combination of different ones of the types of the objects.

6. The apparatus of claim 1 , wherein the solution-based layer includes a solution of at least one of crystal-forming molecules, inorganic materials and other objects having a plurality of features including directed crystalline morphology attributes configured and arranged as a function of the protruded or indented features.

7. The apparatus of claim 1 , wherein
the objects include at least one of crystal-forming molecules, inorganic molecules and other objects, and
the substrate includes patterned features having boundary regions with intersecting edges configured and arranged to nucleate the objects along the boundary regions by directing flow of the objects in the solution and controlling evaporation of solvent from the solution.

8. The apparatus of claim 7 , wherein the intersecting edges are configured and arranged to, as a meniscus of the solution-based layer passes an intersection of the edges, pin a contact line of the solution at the intersection of the edges until the objects nucleate at the contact line.

9. The apparatus of claim 7 , wherein the solution-based layer is patterned relative to surface patterning on the substrate.

10. The apparatus of claim 7 , wherein the intersecting edges are configured and arranged to facilitate evaporation of a solvent from the solution-based layer and therein deposit a crystalline or a non-crystalline coating on the substrate, the coating including ones of the objects that are dissolved or suspended in the solvent.

11. The apparatus of claim 7 , wherein the patterned features are configured and arranged to facilitate deposition of a crystalline or a non-crystalline coating on the substrate by controlling evaporation of a solvent from the solution, and wherein the coated substrate includes substances chemically derived from the objects that were dissolved or suspended in the solvent.

12. The apparatus of claim 11 , wherein the patterned features are configured and arranged to form the chemically-derived substances during or after coating of the substrate by at least one of chemical and thermal interaction with at least one of the applicator and the coated substrate.

13. The apparatus of claim 1 , wherein
the objects include at least one of crystal-forming molecules and inorganic molecules, and
the coated substrate includes patterned features that are configured and arranged with the protruded or indented features of the applicator to control phase separation including at least one of nucleation, growth of single crystalline structures and spinodal decomposition from the objects.

14. The apparatus of claim 1 , wherein the coated substrate includes directed or aligned crystalline morphology attributes set as a function of the protruded or indented features.

15. The apparatus of claim 1 , wherein the morphology attributes includes shape and distances between the protruded or indented features being configured and arranged to control flow of fluid in the solution-based layer, and using the controlled flow of fluid to orient the objects.

16. The apparatus of claim 1 , further including patterned features on the substrate being configured and arranged to control nucleation of crystalline structures from the objects by controlling evaporation of solvent from the solution-based layer.

17. The apparatus of claim 1 , further including reactive components present during deposition or post deposition of the solution-based layer.

18. The apparatus of claim 1 , wherein the shearing blade has a micro-pillar pattern formed by the protruded or indented features.

19. The apparatus of claim 1 , wherein the protruded or indented features are configured to interact with the solution to form a film on the substrate responsive to movement of the applicator relative to the coated substrate or movement of the coated substrate relative to the applicator.

20. The apparatus of claim 1 , wherein the protruded or indented features include pillars or indented pillar shapes in an array, each protruded or indented features having a height or depth of between 1 um and 1 mm.

Assignees

• Univ Leland Stanford Junior

Inventors

• Bao Zhenan
• Diao Ying
• Mannsfeld Stefan Christian Bernhardt
• Tee Chee-Keong
• Becerril-Garcia Hector A
• Zhou Yan

Classifications

• C30B29/54

  Organic compounds · CPC title

• C30B7/02 Primary

  by evaporation of the solvent · CPC title