Patent ID: 8216686

Claim:
An organic memory device, comprising an organic active layer between a first electrode and a second electrode; and a barrier layer between the first electrode and the second electrode, wherein the organic active layer includes a dendrimer including a triphenylamine core, wherein a conjugated dendron having no heteroatoms is coupled to the triphenylamine core, wherein the dendrimer is represented by Formula 1, wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are selected from the group consisting of acetylene, vinylene phenylene, fluorene, phenylene ethynylene, naphthalene, anthracene, tetracene, perylene, and pyrene, and substituents of the R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are selected from the group consisting of C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 5 -C 30 heterocycloalkyl, C 2 -C 20 alkenyl, C 6 -C 20 aryl, C 5 -C 30 heteroaryl, C 7 -C 20 arylalkyl, and C 7 -C 30 heteroarylalkyl, wherein the barrier layer includes a material selected from the group consisting of SiO 2 , Al 2 O 3 , Cu 2 O, TiO 2 , V 2 O 3 , Alq 3 , polymethylmethacrylate, polystyrene, and polyethylene terephthalate (PET).