title: Electrical conduction behavior of organic light-emitting diodes using fluorinated self-assembled monolayer with molybdenum oxide-doped hole transporting layer.
abstract: The electrical conductivity behavior of a fluorinated self-assembled monolayer (FSAM) of a molybdenum oxide (MoOx)-doped α-naphthyl diamine derivative (α-NPD) in organic light-emitting diodes (OLEDs) was investigated. The current density of the MoOx-doped α-NPD/FSAM device was proportional to its voltage owing to smooth carrier injection through the FSAM and the high carrier density of its bulk. The temperature-dependent characteristics of this device were investigated. The current density-voltage characteristics at different temperatures were almost the same owing to its very low activation energy. The activation energy of the device was estimated to be 1.056 × 10(-2) [eV] and was very low due to the inelastic electron tunneling of FSAM molecules.
authors.affiliation: Department of Electrical Engineering and Computer Science, Nagoya University, Nagoya, 464-8603, Japan.
authors.forename: Sang-Geon
authors.initials: SG
authors.lastname: Park
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Mori
mesh_terms: D004553:Electric Conductivity; D004867:Equipment Design; D008029:Lighting / Q000295:instrumentation*; D008982:Molybdenum / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D013696:Temperature
chemical_list: D010087:Oxides; C539565:molybdenum dioxide; D008982:Molybdenum
keywords: molybdenum oxide; organic light-emitting diodes; self-assembled monolayer; space charge limited current