IP Library Granted Patent US 12,428,605
Granted Patent B2
US 12,428,605 · App. 17/548,388 · Granted Sep 30, 2025

Composite condensed matter material and methods of using and forming same

Inventors: Haridas Mundoor (Boulder, CO); Ivan I. Smalyukh (Boulder, CO)
Assignee: The Regents of the University of Colorado, a body corporate
C09K19/52C09K2019/521
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Quick Facts
Patent No.
US 12,428,605
App. No.
17/548,388
Granted
Sep 30, 2025
Kind
B2
Abstract

Composite condensed matter material, devices including the composite condensed matter material, and methods of forming and using the composite condensed matter material are disclosed. The composite condensed matter material includes a host material and particles dispersed and suspended within the host material. The composite condensed matter material can exhibit one or more low symmetry phases and reconfigurable properties.

Claims (29)

1. A composite condensed matter material comprising:

a liquid crystal host material comprising molecules having a first shape; and

particles dispersed and suspended within the host material, the particles having a second shape, the second shape being the same or different from the first shape;

wherein the particles comprise one or more of semiconductor material, dielectric material, magnetic material, or any combination thereof,

wherein the particles are surface functionalized with one or more of silica or polyethylene glycol and/or treated with an acid treatment to mitigate aggregation of the particles and to facilitate orientation of the particles different from the orientation of the molecules,

wherein the composite condensed matter material exhibits one or more low symmetry phases, and

wherein the composite condensed matter material exhibits reconfigurable properties.

2. The composite condensed matter material of claim 1 , wherein the host material comprises nematic liquid crystal material.

3. The composite condensed matter material of claim 1 , wherein the particles are disc-shaped and comprises a positive core and a coating that comprise a negative charge.

4. The composite condensed matter material of claim 1 , wherein a size of the particles ranges from about 2 nm to about 10 μm.

5. The composite condensed matter material of claim 1 , wherein the particles exhibit different orientation from that of the molecules.

6. The composite condensed matter material of claim 1 , wherein the particles comprise a silica coating.

7. The composite condensed matter material of claim 1 , wherein the composite condensed matter material exhibits one or more of monoclinic, orthorhombic, triclinic biaxial orientational order, or orientational order with any other symmetry different from that of shapes and phases formed by molecules and particles.

8. The composite condensed matter material of claim 1 , wherein the particles comprise a shape selected from the group consisting of hexagonal prism, disc, v-shape, u-shape, w-shape, and triangular prism.

9. The composite condensed matter material of claim 1 , wherein the particles are coated with a polymer to stabilize the particles by steric interaction.

10. The composite condensed matter material of claim 1 , wherein both the host material and the particles exhibit uniaxial symmetry and wherein the low-symmetry condensed material exhibits nematic, smectic, and columnar states with monoclinic, triclinic, orthorhombic and other symmetries of orientational order that have a lower number of symmetry operations compared to the uniaxial symmetry.

11. The composite condensed matter material of claim 1 , wherein the properties of phases combine fluidity with orientational order and no or varying degrees of positional order, as well as are selected from the group consisting of ferroelectric, ferromagnetic, piezoelectric, and dielectric.

12. The composite condensed matter material of claim 1 , wherein the composite condensed matter material exhibits a plurality of phases.

13. The composite condensed matter material of claim 1 , wherein the host material comprises one or more molecular mesogens.

14. The composite condensed matter material of claim 13 , wherein the one or more molecular mesogens comprise 4-cyano-4′-pentylbiphenyl.

15. A method of using the composite condensed matter material of claim 1 comprising applying one of more of heat, light, mechanical stress, electric or magnetic field, and bias to the composite condensed matter material to change an orientation of the composite condensed matter material.

16. The method of claim 15 , wherein the composite condensed matter material becomes more ordered upon application of one of more of heat, electric or magnetic field, and bias to the composite condensed matter material.

17. A device comprising the composite condensed matter material of claim 1 .

18. A method of forming the composite condensed matter material of claim 1 , the method comprising the steps of:

forming particles;

providing a nematic host material; and

dispersing the particles within the host material to form a colloidal dispersion within the nematic host material.

19. The composite condensed matter material of claim 2 , wherein the particles are coated with a polymer to stabilize the particles by steric interaction.

20. The composite condensed matter material of claim 19 , wherein the polymer comprises polyethylene glycol or polystyrene.

Assignments (2)
CONFIRMATORY LICENSE Recorded May 18, 2022
From: UNIVERSITY OF COLORADO
To: UNITED STATES DEPARTMENT OF ENERGY
Reel/Frame 060116/0340 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2022
From: MUNDOOR, HARIDAS; SMALYUKH, IVAN I.
To: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
Reel/Frame 058976/0028 →
Continuity (2)
Provisional Application 63123907 · Dec 10, 2020
Related Publication 20220186120A1 · Jun 16, 2022
References Cited (2)
US 8999195B2 · Chu · 2015 [cited by examiner]
US 20220186120A1 · Mundoor · 2022 [cited by examiner]