几何形状对场-发射极特性影响的密度梯度分析

1992 International Technical Digest on Electron Devices Meeting Pub Date : 1900-01-01 DOI:10.1109/IEDM.1992.307383

M. Ancona

{"title":"几何形状对场-发射极特性影响的密度梯度分析","authors":"M. Ancona","doi":"10.1109/IEDM.1992.307383","DOIUrl":null,"url":null,"abstract":"An approximate approach to quantum transport problems known as density-gradient theory is used to study geometrical and space-charge effects on field emission in planar, cylindrical and spherical geometries. It is shown that significant departures from simple field enhancement ( beta factor) arise for radii of curvature below 50AA and that for many purposes explicit inclusion of space-charge effects is unnecessary especially in non-planar geometries.<<ETX>>","PeriodicalId":287098,"journal":{"name":"1992 International Technical Digest on Electron Devices Meeting","volume":"190 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Density-gradient analysis of effects of geometry on field-emitter characteristics\",\"authors\":\"M. Ancona\",\"doi\":\"10.1109/IEDM.1992.307383\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An approximate approach to quantum transport problems known as density-gradient theory is used to study geometrical and space-charge effects on field emission in planar, cylindrical and spherical geometries. It is shown that significant departures from simple field enhancement ( beta factor) arise for radii of curvature below 50AA and that for many purposes explicit inclusion of space-charge effects is unnecessary especially in non-planar geometries.<<ETX>>\",\"PeriodicalId\":287098,\"journal\":{\"name\":\"1992 International Technical Digest on Electron Devices Meeting\",\"volume\":\"190 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1992 International Technical Digest on Electron Devices Meeting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IEDM.1992.307383\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1992 International Technical Digest on Electron Devices Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IEDM.1992.307383","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

摘要

密度梯度理论是量子输运问题的一种近似方法，用于研究平面、圆柱和球面几何中几何和空间电荷对场发射的影响。结果表明，当曲率半径低于50AA时，明显偏离简单的场增强(β因子)，并且在许多情况下，空间电荷效应的明确包含是不必要的，特别是在非平面几何中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

Density-gradient analysis of effects of geometry on field-emitter characteristics

An approximate approach to quantum transport problems known as density-gradient theory is used to study geometrical and space-charge effects on field emission in planar, cylindrical and spherical geometries. It is shown that significant departures from simple field enhancement ( beta factor) arise for radii of curvature below 50AA and that for many purposes explicit inclusion of space-charge effects is unnecessary especially in non-planar geometries.<>

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

1992 International Technical Digest on Electron Devices Meeting

自引率

0.00%

发文量