Electroluminescent(EL) and I-V characteristics of Eu(TTA)(3)(phen) layers with various thickness were investigated. The red EL spectrum emitted from the Eu(TTA)(3)(phen) layer is almost the same as the PL spectrum. Based on the IN characteristics. it was found that the turn-on voltage is 9V and current density was 0.01 A/cm at a dc operation voltage of 9V. The observed electrical transport phenomena were explained within a trapped-charge-limited current model describing I-V characteristics.