Inorganic nanoparticle structure, film, optical member, light-emitting device, and liquid crystal display apparatus having the same
An inorganic nanoparticles-based structure in accordance with the present disclosure includes inorganic nano-particles; and a novel ligand coordinated to a surface of each of the inorganic nano-particles, wherein the ligand has a urethane bond resulting from reaction with an isocyanate compound having a double bond, and, thus, has a double bond at terminals thereof. Further, the present disclosure provides an optical member, a light-emitting device, and a quantum dot display device including the inorganic nanoparticles-based structure.
1. An inorganic nanoparticles-based structure including:
inorganic nano-particles; and
a ligand coordinated to a surface of each of the inorganic nano-particles, wherein the ligand contains a component having a structure represented by a following chemical formula 1:
where X represents —SH, —P═OO, —C═OO or —HN 2 ;
L 1 represents an alkylene group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 15 carbon atoms, an aryl group having 3 to 15 carbon atoms, or a heteroarylene group having 3 to 15 carbon atoms;
at least one hydrogen atom of the alkylene group is substituted or unsubstituted with a cycloalkyl group having 3 to 15 carbon atoms, an aryl group having 3 to 15 carbon atoms, or a heteroarylene group having 3 to 15 carbon atoms;
Y represents a following chemical formula 2 or chemical formula 3:
in the chemical formulas 2 and 3,
R 1 represents an alkylene group having 1 to 20 carbon atoms;
R 2 and R 3 each independently represents hydrogen, an alkyl group having 1 to 10 carbon atoms or an aryl group having 3 to 15 carbon atoms.
2. The inorganic nanoparticles-based structure of claim 1 , wherein a content of the component represented by the chemical formula 1 is in a range of about 1 wt % to about 95 wt % with respect to a total weight of the ligand coordinated to the surface of the inorganic nano-particle.
3. The inorganic nanoparticles-based structure of claim 1 , wherein the inorganic nanoparticle has a diameter of 0.5 nm to 40 nm.
4. A thin film, wherein the film is formed by exposing, to light, a mixture between the inorganic nanoparticles-based structure of claim 1 and photo-initiator.
5. An optical member comprising the inorganic nanoparticles-based structure of claim 1 .
6. A light-emitting device comprising the inorganic nanoparticles-based structure of claim 1 .
7. A quantum-dot display device comprising the inorganic nanoparticles-based structure of claim 1 .