Field Emission of Electrons from Single LaB6 Nanowires

• DOI: 10.1002/adma.200500508
• Publication Date: 2005-12-05T12:18:30Z
• Authors: H. Zhang; J. Tang; Q. Zhang; G. Zhao; G. Yang; J. Zhang; O. Zhou; L.‐C. Qin
• Keywords: 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 0104 chemical sciences

Single-crystalline lanthanum hexaboride (LaB6) nanowires show excellent electric-field-induced electron emission following the Fowler–Nordheim scheme. The LaB6 grow in <001> crystallographic direction (see Figure) with diameters of about 20 nm. An current 30 nA from a single nanowire, corresponding to density 5 × 105 A cm–2, has been obtained.