Method for manufacturing a light emitting element including a quantum dot composition

A method of manufacturing a light emitting element, the method comprising:

• forming a first electrode;
• forming a hole transport region on the first electrode;
• providing, on the hole transport region, a quantum dot composition containing a quantum dot composite having a quantum dot and a ligand bonded to a surface of the quantum dot to form a preliminary emission layer:
• providing a polar solvent on the preliminary emission layer to form an emission layer;
• forming an electron transport region on the emission layer;
• and
• forming a second electrode on the electron transport region,
• wherein the ligand comprises a head portion bonded to the surface of the quantum dot and containing a polar solvent dissociative functional group, and a tail portion connected to the head portion.

A method of manufacturing a light emitting element, the method comprising:

• forming a first electrode;
• forming a hole transport region on the first electrode;
• providing, on the hole transport region, a quantum dot composition containing a quantum dot composite having a quantum dot and a ligand bonded to a surface of the quantum dot to form a preliminary emission layer;
• providing a polar solvent on the preliminary emission layer to form an emission layer;
• forming an electron transport region on the emission layer;
• and
• forming a second electrode on the electron transport region,
• wherein the providing of the polar solvent on the preliminary emission layer and the forming of the electron transport region on the emission layer are performed in a single process.