A high contrast organic light-emitting device (OLED) includes a composite electron transport layer including a generally transparent electron transport layer and a light-absorbent electron transport layer formed of buckminsterfullerene. The light-absorbent electron transport layer absorbs environmental light and the OLED provides an undistorted display with high contrast. The light-absorbent electron transport layer may be disposed directly between the generally transparent electron transport layer which may be formed of Alq, and an LiF electron injection layer of a metallic cathode.