Quan Gao Li from North Canton, OH, age 51

Nanoscale Discotic Liquid Crystalline Porphyrins
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US Patent:

7279570, Oct 9, 2007
Filed:

Jan 4, 2006
Appl. No.:

11/325478
Inventors:

Quan Li - Kent OH, US
Lanfang Li - Kent OH, US
Antal Jakli - Kent OH, US
John Harden, Jr. - Streetsboro OH, US
Assignee:

Kent State University - Kent OH
International Classification:

C07D 487/22
H01L 51/44
H01L 31/042
H01L 35/24
C09K 19/34
C09K 19/32
US Classification:

540145, 257 40, 136263, 438 30, 438 99
Abstract:

Novel nanoscale discotic liquid crystalline porphyrins, methods for their preparation, and device fabrication are disclosed. These compounds are capable of being used as high-efficiency photovoltaic materials, organic semiconducting materials, and organic light emitting materials.

Light-Harvesting Discotic Liquid Crystalline Porphyrins And Metal Complexes
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US Patent:

7291727, Nov 6, 2007
Filed:

Dec 13, 2006
Appl. No.:

11/638163
Inventors:

Quan Li - Stow OH, US
Xiaoli Zhou - Kent OH, US
Assignee:

Kent State University - Kent OH
International Classification:

C07D 487/22
C07D 225/04
H01L 51/44
H01L 31/042
H01L 35/24
C09K 19/34
C09K 19/32
US Classification:

540145, 540465, 257 40, 136263, 438 30, 438 99, 25229961, 25229962
Abstract:

Novel discotic liquid crystalline porphyrins and discotic liquid crystalline metal complexes, methods for their preparation, and device fabrication are disclosed. Materials with partially perfluorinated alkyl group in the peripheral chains show a strong tendency towards the formation of homeotropic alignment. These compounds are capable of being used as high-efficiency photovoltaic materials, organic semiconducting materials, and organic light emitting materials.

Liquid Crystalline Blends, Device Thereof And Method Thereof
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US Patent:

8241522, Aug 14, 2012
Filed:

Jul 30, 2009
Appl. No.:

12/597940
Inventors:

Quan Li - Stow OH, US
Assignee:

Kent State University - Kent OH
International Classification:

C09K 19/52
C09K 19/32
C09K 19/34
C09K 19/54
H01L 51/00
H01L 31/042
H01L 35/24
US Classification:

25229901, 2522995, 25229961, 25229962, 438 30, 438 60, 438 99, 257 40, 136263
Abstract:

The invention provides liquid crystalline blends, a device such as a photovoltaic cell using the blend and method thereof. A liquid crystalline blend comprises at least an electron donor and at least an electron acceptor with a weight or molar ratio in the range of from about 1:20 to about 20:1. Another liquid crystalline blend comprises at least an electron donor and at least an electron acceptor, wherein the electron donor, the electron acceptor, or both is (are) halo-substituted such as F-substituted. The donor or the electron acceptor can be excited by an electromagnetic radiation such as solar light to induce electron transfer between the donor and the acceptor. The photovoltaic cell is improved in that favorable molecular arrangement in the blend gives more interfaces between the donor and the acceptor and thus a viable path for dissociation and electrons and/or holes; as well as larger light-harvesting area toward the coming light.

Chiral Nematic Photo Displays
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US Patent:

8329058, Dec 11, 2012
Filed:

Jun 13, 2007
Appl. No.:

11/762174
Inventors:

Quan Li - Stow OH, US
Lisa M. Green - Royal Oak MI, US
J. William Doane - Kent OH, US
Asad A. Khan - Kent OH, US
Nithya Venkataraman - Wooster OH, US
Irina Shiyanovskaya - Stow OH, US
Assignee:

Kent Displays Incorporated - Kent OH
Kent State University - Kent OH
International Classification:

C09K 19/00
C09K 19/52
C09K 19/02
C09K 19/06
G02F 1/13
US Classification:

25229901, 2522996, 349 1, 349 19, 349167, 349168, 349175, 349176, 349182, 349186, 349193, 428 11, 428 13
Abstract:

A photodisplay device in which an optically addressed image can be viewed indefinitely, erased and readdressed with a new image is disclosed. Optically responsive reversible photochiral materials are incorporated into a bistable cholesteric liquid crystal in an electrooptic display cell. A high resolution image exposed on the cell is fixed by a low voltage pulse to unpatterned electrodes and can be, at a later time, erased with a high voltage pulse.

Smart Photochromic Chiral Nematic Liquid Crystal Window
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US Patent:

20130093969, Apr 18, 2013
Filed:

Feb 25, 2011
Appl. No.:

13/642250
Inventors:

Quan Li - Stow OH, US
Yannian Li - Kent OH, US
Ji Ma - Kent OH, US
Assignee:

KENT STATE UNIVERSITY - Kent OH
International Classification:

G02F 1/13
US Classification:

349 16
Abstract:

A multi-functional photochromic chiral nematic liquid crystal window comprises at least a photochromic chiral nematic liquid crystal layer. The windows are able to not only to darken in color upon exposure to sunlight irradiation but also control the light and the heat passing through them, which can be used as the windows of buildings, vehicles, and the like.