We demonstrated intense and efficient ultraviolet (UV) electroluminescence (EL) from organic light-emitting devices using an oxadiazole compound (OXD-7) as an electron transporting UV light-emitting material, whose device structure is indium tin oxide/F16CuPc/CBP/OY-D-7/LiF/Al. Using the perfluorinated copper phthalocyanine (F16CuPc) as a hole injection material (HIM) and a carbazole derivative (CBP: 4,4'-dicarbazolyl biphenyl) as a hole transporting material with no exciplex formation nature with OXD-7 enhanced the device performances. The turn-on voltage was 10.5 V, the maximum external quantum efficiency reached 0.8% at a current density of approximately 50 mA/cm(2), and the maximum radiance of EL light reached 10 mW/cm(2). The fluorinated CuPc is a potential HIM for wide bandgap organic semiconducting material devices. (c) 2006 Elsevier B.V. All rights reserved.