A CVD-based method has been developed for the synthesis of rare-earth boride nanowires (e.g., lanthanum hexaboride nanowires). The resulting nanowires serve as electron point emitters with high coherence and low driving voltages, making them attractive for incorporation into devices such as flat panel displays, X-ray tubes, and optical analytical instrumentation. LaB6 nanowires have been prepared via this CVD method.
• Resulting single-crystalline nanowires < 100 nm in diameter
• Offers potential for improved resolution and brightness of electron microscopes
• Lower driving voltage than tungsten-based electron point emitters