| abstract |
An object is to provide a light-emitting element capable of emitting light with a high luminance even at a low voltage, and having a long lifetime. The light-emitting element includes n EL layers between an anode and a cathode ( n is a natural number of two or more), and also includes, between m -th EL layer from the anode and ( m +1)-th EL layer ( m is a natural number, 1 ≤ m ≤ n −1), a first layer including a first donor material in contact with the m -th EL layer, a second layer including an electron-transport material and a second donor material in contact with the first layer, and a third layer including a hole-transport material and an acceptor material in contact with the second layer and the ( m +1)-th EL layer. |