Patent ID: 7439669

Claim:
A light emitting material to be used for a light emitting layer provided in an organic EL device comprising an anode, a cathode including Al, the light emitting layer provided between the anode and the cathode, and an electron transport layer provided between the cathode and the light emitting layer and including Al complex, the light emitting material being characterized in that when the light emitting material is dissolved in a liquid so that the concentration thereof becomes 2.0 wt %, the liquid contains two or more kinds of metallic impurities, the metallic impurities including Al and at least one of Mg, Ca and Na ions thereof, but an amount of the metallic impurity of which content is the largest among the metallic impurities contained in the liquid is 50 ppb or less, and the total amounts of the metallic impurities contained in the liquid is more than 50 ppb but 200 ppb or less.