Tailoring carbon nanotubes to designed morphologies for electron field emission applications

摘要：

Field emission from carbon nanotubes (CNTs) at low applied electric fields has been demonstrated by a number of groups. However, the emission behavior reported for CNTs varies widely. Most of this variation is attributed to differences in the nanotube morphologies and contents of measured samples. We report here the effect of fabrication techniques including thermal chemical vapor deposition (CVD) and plasma enhanced CVD on the formation of CNTs. The post-deposition process of using atomic layer deposition (ALD) of ZnO on CNTs was also investigated. The results suggest that numerous ZnO nanobeads formed on the surface of the CNTs resulting in dramatically improved electron field-emission.

作者: Jun Jiao Devon McClain Jianfeng Wu Joshua M. Green

作者单位: Physics Department, Portland State University, P.O. Box 751, Portland, OR 97207, U.S.A.

会议类型: 国际会议

会议名称: 19Th International Vacuum Nanoelectronics Conference & 50th International Field Emission Symposium(第19届真空微纳国际年会暨第50届场致发射国际会议)

会议地点: 桂林

会议语种:英文

页码: 71-72

在线出版日期: 2006-07-17（万方平台首次上网日期，不代表论文的发表时间）