Quantum dot, method for preparing the quantum dot, and light emitting element comprising the quantum dot

A light emitting element comprising:

• a first electrode;
• a hole transport region disposed on the first electrode;
• an emission layer disposed on the hole transport region and comprising a quantum dot;
• an electron transport region disposed on the emission layer;
• and
• a second electrode disposed on the electron transport region, wherein
• the quantum dot comprises:
• a core comprising copper, indium, gallium, and sulfur;
• and
• a shell surrounding the core and comprising fluorine and a Group II-VI compound.