Web摘要: 采用掺镧锆锡钛酸铅反铁电陶瓷作为阴极材料,研究了脉冲电压激励 下陶瓷的电子发射特性.当激励电压为800 V,抽取电压为0 V时,得到1.27 A/cm2的发射电流密度;当抽取电压增加到4 kV时,获得1700 A/cm2的发射电流密度.分析了发射电流随抽取电压的变化关系,讨论了反铁电陶瓷强电子发射的内在机理 ... Web摘要: 使用Hartree-极化势分析了用气体闸流管得到的Ramsauer-Townsend 效应曲线; 考虑了电子存在初速度等因素,定量分析了Child-Langmuir 定律实验中出现的lnI 和lnVa …
Child-Langmuir Law - definition of Child-Langmuir Law by The …
Web提供全面的“Child-Langmuir定律”相关文献(论文)下载,论文摘要免费查询,Child-Langmuir定律论文全文下载提供PDF格式文件。 Child-Langmuir定律中文、英文词汇释 … WebChild-Langmuir Law synonyms, Child-Langmuir Law pronunciation, Child-Langmuir Law translation, English dictionary definition of Child-Langmuir Law. n. The excess of … michael winfield justia
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Web无陷阱空间电荷限制电流的平方律(Child定律)(3.191) 这是样品的低迁移率使电极注入的电荷来不及被全部输运,在欧姆电极附近形成空间电荷, 导致偏离欧姆定律,因此相应的电流称 … WebJun 9, 2009 · Langmuir在推导公式时做了三个基本假定:①在固体吸附剂表面上有一定数目的吸附位,每个吸附位只能吸附一个分子或原子;②表面上所有吸附位的吸附能力相同,也就是说在所有吸附位上的吸附热相等;③被吸附分子之间无相互作用。. Langmuir当初从动 … WebSpace charge is an interpretation of a collection of electric charges in which excess electric charge is treated as a continuum of charge distributed over a region of space (either a volume or an area) rather than distinct point-like charges. This model typically applies when charge carriers have been emitted from some region of a solid—the cloud of emitted … how to change your pc name on front log in