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硝酸铁浓度对石墨片上生长的碳纳米管场发射性能的影响(英文)
Field Emission Properties of CNTs Grown on Graphite Immersed in Different Concentrations of Fe(NO3)3 Solutions by Chemical Vapor Deposition
【摘要】 石墨衬底先分别浸泡于0.1~1mol/L不同浓度的硝酸铁溶液后,采用低压化学气相沉积法于700℃在石墨衬底上生长碳纳米管薄膜。根据扫描电子显微镜照片及拉曼光谱分析碳纳米管的形貌和构成。碳纳米管的场发射性能的研究采用标准电流-电压测试。浸泡于0.6mol/L硝酸铁溶液的石墨片上所生长的碳纳米管的场发射性能最佳。
【Abstract】 Carbon nanotubes films were deposited on flat graphite substrates by low pressure chemical vapor deposition at 700 ℃. The graphite was immersed in Fe(NO3)3 solution with different concentrations ranging from 0.1 mol/L to 1 mol/L,respectively. The morphologies and structures of the CNTs films were investigated by scanning electron microscopy and Raman spectroscopy. Field emission properties of the CNTs were analyzed by standard current-voltage measurement. The optimized field emission behavior is found from the CNTs grown on the graphite substrate immersed in 0.6 mol/L Fe(NO3)3 solution.
- 【文献出处】 液晶与显示 ,Chinese Journal of Liquid Crystals and Displays , 编辑部邮箱 ,2007年04期
- 【分类号】TB383.1
- 【被引频次】2
- 【下载频次】107