Composite material, light emitting element, light emitting device and electronic appliance using the composite material

摘要

A composite material includes an organic compound represented by the following general formula (2) and an inorganic compound, where, in the general formula (2), where in the general formula (2) X is selected from aromatic hydrocarbons represented by formulae (2-1) to (2-6) and R 1 to R 20 are identical or different from one another, and represent any of hydrogen, an alkyl group, an alkoxy group, an aryl group, and an arylalkyl group. A light emitting element includes the composite material and a light emitting device and an electronic appliance includes the light emitting element. The composite material has an excellent carrier transporting property and an excellent carrier injecting property with respect to the organic compound along with high visible light transmittance. By utilizing the composite material, a current excitation type light emitting element requiring low driving voltage and having excellent light emitting efficiency is obtained. By using the light emitting element, a light emitting device consuming low power and an electronic appliance including the light emitting device is provided.