| 4H-SiC肖特基二极管载流子输运的温度效应 |
| |
| 引用本文： | 童武林,孙玉俊,刘益宏,赵高杰,陈之战.4H-SiC肖特基二极管载流子输运的温度效应[J].上海师范大学学报(自然科学版),2015,44(4):430-434. |
| |
| 作者姓名： | 童武林 孙玉俊 刘益宏 赵高杰 陈之战 |
| |
| 作者单位： | 上海师范大学,上海师范大学,上海师范大学,上海师范大学,上海师范大学 |
| |
| 基金项目： | 973计划预研专项“超快大功率碳化硅光导开关关键科学问题研究”(2012CB326402);上海市科委重点支持项目“碳化硅高温压力传感器设计及工艺开发”(13520502700) |
| |
| 摘 要： | 以Cree公司生产的碳化硅肖特基二极管为研究对象,对其进行I-V测试.通过对实验数据的理论模拟,研究了碳化硅肖特基二极管的载流子输运机理及温度效应.研究结果表明:温度升高,碳化硅肖特基二极管的肖特基势垒高度降低,漏电流急剧增加.正向导通时符合热电子发射机理,镜像力和隧穿效应共同作用使得反向偏压下的漏电流增加并能较好地和实验值相一致.
|
| 关 键 词： | 碳化肖特基二极管 热电子发射 镜像力 隧穿效应 温度 |
| 收稿时间： | 2015/6/23 0:00:00 |
Effect of temperature on the carrier transport property of 4H-SiC based Schottky barrier diode |
| |
| TONG Wulin,SUN Yujun,LIU Yihong,ZHAO Gaojie and CHEN Zhizhan.Effect of temperature on the carrier transport property of 4H-SiC based Schottky barrier diode[J].Journal of Shanghai Normal University(Natural Sciences),2015,44(4):430-434. |
| |
| Authors: | TONG Wulin SUN Yujun LIU Yihong ZHAO Gaojie and CHEN Zhizhan |
| |
| Institution: | College of Mathematics and Sciences,Shanghai Normal University,College of Mathematics and Sciences,Shanghai Normal University,College of Mathematics and Sciences,Shanghai Normal University,College of Mathematics and Sciences,Shanghai Normal University and College of Mathematics and Sciences,Shanghai Normal University |
| |
| Abstract: | In this paper,the current-voltage (I-V) measurement under different temperatures was carried out on the 4H-SiC Schottky barrier diode (SBD) purchased from Cree Inc.The carrier transport mechanism and the temperature effect of SBD were investigated through the theoretical simulation based on the experimental data.The Schottky barrier height is decreased and leakage current is increased sharply for SBD when the temperatures are increased.The SBD forward bias obeys the hot electron emission mechanism.Taking the image force correction and tunneling effect into consideration,the high leakage current under reverse bias can be reasonably explained and is good agreement with the experiment results. |
| |
| Keywords: | silicon carbide Schottky diode thermionic emission image force tunneling effect temperature |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《上海师范大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《上海师范大学学报(自然科学版)》下载免费的PDF全文 |
