Provided are a silicon-containing compound having carbazole and fluorene in its molecule and an organic electroluminescent device including an organic layer employing the same. The silicon-containing compound is represented by the following formula:
The silicon-containing compound has excellent electrical characteristics and a charge transporting capability, the silicon-containing compound can be used as a hole injecting material, a hole transporting material, and/or a light emitting material that are suitable for all-color fluorescent and phosphorescent organic light emitting devices such as red, green, blue, and white fluorescent and phosphorescent organic light emitting devices. When the silicon-containing compound is used to manufacture an organic electroluminescent device, the organic electroluminescent device has a high efficiency, a low driving voltage, high luminosity, and a long lifetime.