Polymeric compositions comprising quantum dots, optical devices comprising these compositions and methods for preparing same
View Patent ↗The present invention relates to a polymeric composition of matter. The composition includes at least one polymer matrix and plurality of quantum dots distributed therein. The polymer may be a perfluorocyclobutane polymer having high optical transmission at telecommunications wavelengths. The quantum dots may include cap compounds to increase the solubility of the quantum dots in the composition. Typical cap compounds include aromatic organic molecules. Optical devices including waveguides may be fabricated from the polymeric compositions of the invention.
1. A composition of matter, comprising: a polymer matrix including polymer chains having a plurality of carbon-fluorine bonds; and a plurality of quantum dots distributed within the polymer matrix, wherein the quantum dots include at least one organic cap compound including at least one aromatic group.
2. The composition of matter of claim 1 , wherein the quantum dots include at least one organic cap compound and neither the quantum dots nor the cap compounds of the quantum dots are covalently bound to the polymer matrix.
3. An optical waveguide comprising the composition of matter of claim 1 .
4. The composition of matter of claim 1 , in which the organic cap compound includes fluorine.
5. The composition of matter of claim 1 , wherein the polymer chains include aromatic groups.
6. The composition of matter of claim 1 wherein the polymer matrix includes a number N A aliphatic carbon-hydrogen bonds and a number N T total bonds, the ratio N A /N T being less than about 0.4.
7. The composition of matter of claim 1 , in which the polymer matrix includes a cyclic group having at least 3 carbon atoms.
8. A composition of matter, comprising: a polymer matrix including polymer chains having a plurality of carbon-fluorine bonds; and a plurality of quantum dots distributed within the polymer matrix, wherein the polymer chains include aromatic groups.
9. The composition of matter of claim 8 , wherein the polymer matrix includes a perfluorocyclobutane polymer.
10. The composition of matter of claim 8 , including a polymer chain that includes at least 10 repeat units and that is cross linked at least twice to at least one of the other polymer chains.
11. The composition of matter of claim 8 , wherein the polymer matrix includes a number N A aliphatic carbon-hydrogen bonds and a number N T total bonds, the ratio N A /N T being less than about 0.4.
12. The composition of matter of claim 8 , in which the polymer matrix includes a cyclic group having at least 3 carbon atoms.
13. The composition of matter of claim 8 , wherein the quantum dots include at least one organic cap compound and neither the quantum dots nor the cap compounds of the quantum dots are covalently bound to the polymer matrix.
14. An optical waveguide comprising the composition of matter of claim 8 .
15. An optical waveguide, comprising: an optical core comprising: a polymer matrix comprising polymer chains having a plurality of carbon-fluorine bonds; and a plurality of quantum dots distributed within the polymer matrix of the optical core.
16. The optical waveguide of claim 15 , wherein the waveguide is a one-dimensional waveguide.
17. The optical waveguide of claim 15 , wherein the quantum dots are capable of absorbing energy and emitting photoluminescence.
18. The optical waveguide of claim 15 , wherein the quantum dots comprise at least one organic cap compound comprising at least one aromatic group.
19. The optical waveguide of claim 15 , wherein the polymer comprises a number N A aliphatic carbon-hydrogen bonds and a number N T total bonds, the ratio N A /N T being less than about 0.3.
20. The optical waveguide of claim 15 , wherein the polymer chains comprise aromatic groups.