Advanced Materials

Organic Semiconductor Nanowires for Field Emission


  • This work was supported by the National Science Council of ROC under Contract No. NSC-91-2215-E-002-024 and Ministry of Education of ROC under Contract No. A-91-E-FA04-1-4.


Field emission of organic semiconductor nanowires has been demonstrated for the first time. Tris-(8-hydroxyquinoline)aluminum (AlQ3) nanowires were grown on an indium tin oxide coated substrate by vapor condensation. The nanowires exhibit a low turn-on field of 10.0 V μm–1 and a maximum current density of about ∼ 15 mA cm–2. A stable emission current can be achieved, indicating applications in field emission.