Field emission from aligned high-density graphitic nanofibers

作者：Yan Chen, S. Patel, Ye Yagu, David T. Shaw, Liping Guo · 发表于：Applied Physics Letters · 年份：1998 · DOI：10.1063/1.122397 · 被引用次数：122 · 研究领域：Carbon Nanotubes in Composites、Graphene research and applications、Thermal properties of materials

Field emission data from aligned graphitic nanofibers have been obtained. The aligned nanofibers are 50–100 nm in diameter and 6–10 μm in length, with a density of 109–1010/cm2. The fibers were grown on polycrystalline nickel substrate by plasma-assisted hot filament chemical vapor deposition using a gas mixture of nitrogen and acetylene. The onset of emission current in microampere level was detected at about 1.8 V/μm with an emission area of 1 mm2. The Fowler–Nordheim model was used to analyze the data obtained. The field emission current required for flat panel display can be easily achieved at 2.5 V/μm.