Opto-electronic device and image sensor including the same

An opto-electronic device comprising:

• a base portion;
• a first electrode provided on an upper surface of the base portion;
• a second electrode provided on the upper surface of the base portion and spaced apart from the first electrode;
• a quantum dot layer provided between the first electrode and the second electrode on the base portion, the quantum dot layer comprising a plurality of quantum dots;
• and
• a bank structure covering at least a first partial region of the first electrode and at least a second partial region of the second electrode, the bank structure defining a region where the quantum dot layer is formed and comprising an inorganic material.