Light-emitting element, light-emitting device and electronic device

摘要

A light-emitting element is provided, which includes a light-emitting layer (111) and a control layer (121) between a first electrode (102) and a second electrode (104), wherein the control layer includes a first organic compound and a second organic compound, the first organic compound is included in the control layer more than the second organic compound, the second organic compound has a property of trapping carriers having the same polarity as carriers transported by the first organic compound, and the concentration and the carrier-trapping property of the second organic compound included in the control layer satisfy certain conditions.