emission current density meaning in English

发射电流密度
放射电流密度

Due to their high aspect ratios and small tip radii of curvature , carbon nanotubes possess marvelous electron field emission properties , viz . low turn - on voltage ( e0 ) and large emission current density ( je ) , and have good potential for using as materials in electron emitters of flat panel display
由于奈米碳管具有极高的纵横比与极小的尖端曲率半径，因此奈米碳管有著超乎常态的电子场发射特性，低的场发射起始电压与大的场发射电流密度，使其为电子场发射平面显示器的良好材料。
Films of the cnx nanotube were produced by thermal decomposition on fe - coated si substrates , and their low field emission properties have been investigated . a high - emission current density of 1 . 28ma / cm2 for an applied field of 2 . 54v / u m was achieved , implying cnx nanotubes have better electron field emitter properties than the films of carbon tubes and bcn tubes do under same experiment conditions
860热解乙二胺，在沉积有铁催化剂的硅片上生长出cn _ x纳米管薄膜，并进行了低场致电子发射特性测试，外加电场2 . 54v / m时，发射电流达到1 . 28ma / cm ~ 2 ，比相同实验条件下制备出的碳管、硼碳氮管薄膜的场致电子发射性能优越。