首页> 外文期刊>Nanotechnology >Effects of gas exposure on the field-emission properties of ZnO nanorods
【24h】

Effects of gas exposure on the field-emission properties of ZnO nanorods

机译:气体暴露对ZnO纳米棒场发射特性的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The effect of diverse gases on the field emission (FE) properties of ZnO nanorods was investigated. The FE properties of nanorods were fully recovered after evacuating to the initial pressure, even after an abrupt current drop under severe vacuum conditions of approx 2 x 10~(-4) Torr induced by the presence of O_2, N_2, AT and air. The reversible and sensitive response of the FE of the nanorods with variation in pressure was found for all gases tested except for H_2. Exposure of H_2 causes a permanent increase in the FE current and a decrease in the turn-on field. The pressure-dependent field emission behaviour of nanorods must be considered when field emission data are compared and characterized.
机译:研究了不同气体对ZnO纳米棒的场发射(FE)特性的影响。抽空至初始压力后,即使在由于O_2,N_2,AT和空气的存在而引起的约2 x 10〜(-4)Torr的严重真空条件下突然电流下降之后,纳米棒的FE特性也可以完全恢复。对于除H_2外的所有测试气体,发现纳米棒的FE随压力的变化具有可逆和敏感的响应。 H_2的暴露会导致FE电流永久增加,而导通场减小。比较和表征场发射数据时,必须考虑纳米棒的压力相关场发射行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号