论文部分内容阅读
A hexagon pitch carbon nanotube(CNT) array vertical to the normal gate of cold cathode field emission displayer(FED) is simulated by solving the Laplace equation.The calculated results show that the normal gate causes the electric field around the CNT tops to be concentrated and the emission electron beam becomes a column.The field enhancement factor and the emission current intensity step up greatly compared with those of the diode structure.Emission current density increases rapidly with the decrease of normal-gate aperture.The gate voltage exerts a critical influence on the emission current.
A hexagon pitch carbon nanotube (CNT) array vertical to the normal gate of cold cathode field emission displayer (FED) is simulated by solving the Laplace equation. The calculated results show that the normal gate causes the electric field around the CNT tops to be concentrated and the emission electron beam becomes a column. the field enhancement factor and the emission current intensity step up greatly compared with those of the diode structure. Emission current density increases rapidly with the decrease of normal-gate aperture. The gate voltage exerts a critical influence on the emission current.