Compositions, devices and methods for optimizing photosynthetically active radiation

Patent metadata

Field	Value
Publication number	US-9419177-B2
Application number	US-201313750776-A
Country	US
Kind code	B2
Filing date	Jan 25, 2013
Priority date	Jan 25, 2012
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

Compositions, devices, and methods for optimizing photosynthetically active radiation by utilizing a composition comprising a quantum confinement material having an emission spectra of between 300 nm and 545 nm, and a quantum confinement material having an emission spectra of between 545 nm and 750 nm where the composition may be embedded in and/or coated on one or more transparent surfaces.

First claim

What is claimed is:

1. A composition comprising:
(a) a quantum confinement material consisting of a 20-50 nm thulium doped yttrium vanadate colloid having an excitation wavelength of 300 nm and an emission wavelength of 477 nm;
(b) a quantum confinement material selected from:
(i) a 20-50 nm europium doped yttrium vanadate colloid having an excitation wavelength of 300 nm and an emission wavelength of 620 nm;
(ii) a 10 nm europium doped yttrium vanadate colloid having an excitation wavelength of 350 nm and an emission wavelength of 617 nm;
(iii) a 10 -50 nm samarium doped yttrium vanadate colloid having an excitation wavelength of 300 nm and an emission wavelength of 650 nm;
(iv) a 25 nm NaYF4:Yb,Er colloid having an excitation wavelength of 980 nm and an emission wavelength of 545 nm; and
(v) an atomic graphene layer with defect points enabling quantum confinement active zones; and

(c) an adhesive wherein the adhesive is selected from among an anaerobic adhesive, a cyanoacrylate adhesive, an epoxy, a structural acrylic, and an ultraviolet light curable adhesive.

2. The composition of claim 1 wherein the 20-50 nm europium doped yttrium vanadate colloid having an excitation wavelength of 300 nm and an emission wavelength of 620 nm is in a solvent of <0.7 mg/ml polyvinylpyrrolidone.

3. The composition of claim 1 wherein the 10 nm europium doped yttrium vanadate colloid having an excitation wavelength of 350 nm and an emission wavelength of 617 nm is in a solvent of H 2 O.

4. The composition of claim 1 wherein the 10-50 nm samarium doped yttrium vanadate colloid having an excitation wavelength of 300 nm and an emission wavelength of 650 nm is in an aqueous solution containing trace citrate if the samarium doped yttrium vanadate colloid is 10 nm, and is in a solution of less than 0.7 mg/ml polyvinylpyrrolidone if the samarium doped yttrium vanadate colloid is 50 nm.

5. The composition of claim 1 wherein the 25 nm NaYF4:Yb,Er colloid having an excitation wavelength of 980 nm and an emission wavelength of 545 nm is in a solvent containing hexane.

6. The composition of claim 1 , further comprising:
wherein the quantum confinement material of subpart (a) is in a solvent containing <0.7 mg/ml polyvinylpyrrolidone.

Assignees

• General Hydroponics Inc
• Hgci Inc

Inventors

• Bevier Jonathan Austin
• Ostman Charles Hugo
• Brooke Larwence L

Classifications

• F21V5/04

  of lens shape · CPC title

• A01G7/045

  with electric lighting · CPC title

• C09K11/7776

  Vanadates; Chromates; Molybdates; Tungstates · CPC title

• F21V3/00

  Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) · CPC title

• C09K11/7766

  containing two or more rare earth metals · CPC title