Light emitting element, light emitting device, and method for manufacturing light emitting element

A light-emitting element comprising:

• pixel electrodes provided for individual subpixels of at least three colors;
• a common electrode provided facing each of the pixel electrodes;
• and
• light-emitting layers of each of the at least three colors provided, respectively, between the common electrode and, each of the pixel electrodes,
• wherein one of each of the pixel electrodes and the common electrode is a cathode electrode and another one of each of the pixel electrodes and the common electrode is an anode electrode,
• among the light-emitting layers of each of the at least three colors, a light-emitting layer of a color of the at least three colors having a largest electron affinity extends in a state of being layered between the cathode electrode and each light-emitting layer of other colors of the at least three colors,
• the light-emitting layers of each of the at least three colors each includes quantum dot particles, and
• in the light-emitting layers of each of the at least three colors being layered, a particle length of the quantum dot particles included in the light-emitting layers of each of the at least three colors positioned closer to the cathode electrode is longer than a particle length of the quantum dot particles included in the light-emitting layers of each of the at least three colors positioned closer to the anode electrode is long.