Patent ID: 7365360

Claim:
An electronic device comprising: a first electrode to inject or extract holes, the first electrode including a conductive layer and an n-type organic compound layer in contact with conductive layer; a second electrode to inject or extract electrons; and a p-type organic compound layer disposed between the n-type organic compound layer of the first electrode and the second electrode, the p-type organic compound layer forming an NP junction between the n-type organic compound layer of the first electrode and the p-type organic compound layer, wherein an energy difference between a lowest unoccupied molecular orbital (LUMO) energy of the n-type organic compound layer of the first electrode and a Fermi energy of the conductive layer of the first electrode is about 2 eV or less; and wherein an energy difference between the LUMO energy of the n-type organic compound layer of the first electrode and a highest unoccupied molecular orbital (HOMO) energy of the p-type organic compound layer is about 1 eV or less.