Light-Emitting Element, Lighting Device, Light-Emitting Device, and Electronic Apparatus

A light-emitting element comprising:

• an anode;
• a cathode;
• and
• a layer containing an organic compound between the anode and the cathode,
• wherein the layer containing an organic compound includes at least a light-emitting layer in which a first layer, a second layer, and a third layer are stacked from the anode side,
• wherein the first layer contains a first light-emitting substance,
• wherein the second layer contains a second light-emitting substance and a second organic compound,
• wherein the third layer contains the first light-emitting substance and a third organic compound,
• wherein the amount of the second organic compound is larger than the amount of the second light-emitting substance in the second layer, and
• wherein the amount of the third organic compound is larger than the amount of the first light-emitting substance in the third layer.

A light-emitting element comprising:

• an anode;
• a cathode;
• and
• a layer containing an organic compound between the anode and the cathode,
• wherein the layer containing an organic compound includes at least a light-emitting layer in which a first layer, a second layer, and a third layer are stacked from the anode side,
• wherein the first layer contains a first light-emitting substance and a first organic compound,
• wherein the second layer contains a second light-emitting substance and a second organic compound,
• wherein the third layer contains the first light-emitting substance and a third organic compound,
• wherein a rate of the first light-emitting substance in the first layer is higher than or equal to 50 wt % and lower than 100 wt %,
• wherein a rate of the second organic compound in the second layer is higher than or equal to 50 wt % and lower than 100 wt %, and
• wherein a rate of the third organic compound in the third layer is higher than or equal to 50 wt % and lower than 100 wt %.

A light-emitting element comprising:

• an anode;
• a cathode;
• and
• a layer containing an organic compound between the anode and the cathode,
• wherein the layer containing an organic compound includes at least a light-emitting layer in which a first layer, a second layer, and a third layer are stacked from the anode side,
• wherein the first layer contains a first light-emitting substance,
• wherein the second layer contains a second light-emitting substance and a second organic compound,
• wherein the third layer contains the first light-emitting substance and a third organic compound,
• wherein a rate of the second organic compound in the second layer is higher than or equal to 50 wt % and lower than 100 wt %, and
• wherein a rate of the third organic compound in the third layer is higher than or equal to 50 wt % and lower than 100 wt %.