An organic electroluminescence device emitting white light which comprises
at least two light emitting layers and an electron transporting layer
comprising a heterocyclic derivative having nitrogen atom or silicon atom
which are disposed between a pair of electrodes, wherein the energy gap
of a host compound in each light emitting layer is in a specific range,
the energy gap of the heterocyclic derivative having nitrogen atom or
silicon atom in the electron transporting layer is in a specific range,
and the ionization potential of the heterocyclic derivative having
nitrogen atom or silicon atom in the electron transporting layer and the
ionization potential of the host compound in the light emitting layer
adjacent to the electron transporting layer satisfy a specific relation.
The organic electroluminescence device provides a great efficiency of
light emission under a low voltage and has a long lifetime, and exhibits
no change in the chromaticity.