Fabrication of luminescent quantum dot thiol-yne nanocomposites with tailorable optical, thermal and mechanical properties
AssigneeThe Government of the United States of America, as represented by the Secretary of the Navy
InventorsDarryl A. Boyd, Michael H. Stewart, Kimihiro Susumu, Eunkeu Oh, James P. Wissman
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Abstract
This disclosure concerns a method of making a ligand for Quantum Dot functionalization, a method of making a functionalized Quantum Dot (QD) with a ligand, and a method of making a transparent luminescent quantum dot thiol-yne nanocomposite with tailorable optical, thermal, and mechanical properties. The prepolymer solution and functionalized Quantum Dot can be used in additive manufacturing.
Claims8
A method of making a transparent luminescent quantum dot thiol-yne nanocomposite, comprising the steps of:
- making a functionalized Quantum Dot (QD) with a ligand, comprising the steps of:
- mixing QDs with a chloroform solution comprising synthesized ligands to functionalize the QDs forming functionalized QDs;
- and
- suspending the functionalized QDs in 1.5 uM solution of chloroform forming a functionalized QD solution;
- preparing a thiol-yne prepolymer by combining 1 mole equivalent of one selected from the group consisting of monovinyl, monoalkynyl, polyvinyl, polyalkynyl, and combinations thereof with 1 mole equivalent of one selected from the group consisting of monothiol, polythiol, and combinations thereof;
- mixing the thiol-yne prepolymer and the functionalized QD solution;
- agitating the thiol-yne prepolymer and the functionalized QD solution;
- and
- polymerizing the thiol-yne prepolymer and the functionalized QD solution;
- wherein the resulting nanocomposites are transparent and luminescent;
- and
- wherein the thiol-yne prepolymer is prepared by combining 1 mole equivalent of tetrathiol pentaerythritol tetrakis (3-mercaptopropionate) (PETMP) with 1 mole equivalent of dialkyne 1,7-octadiyne (ODY).
Dependencies are inferred from the claim text.