| 摘要 |
There is provided a light emitting device which emits bright light, has low power consumption, and is inexpensive. An organic compound (polynuclear complex) with a molecular structure which is apt to generate a spin-orbit interaction is used for a light emitting layer or a dopant pigment of an EL element, so that a light emitting device in which an energy from a triplet excitation state can be converted into light emission is obtained. At this time, a center metal of the polynuclear complex is made an inexpensive metal (for example, Cu, Ni, Co, V, Mn, Fe, Zn, etc.), so that a manufacturing cost is reduced.
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