| 高精度扫描隧道显微镜对纳米碳酸钙特性的研究 |
| |
| 引用本文： | 彭光含,杨学恒,李旭,刘济春,辛洪政. 高精度扫描隧道显微镜对纳米碳酸钙特性的研究[J]. 理化检验(物理分册), 2006, 42(3): 129-130,133 |
| |
| 作者姓名： | 彭光含 杨学恒 李旭 刘济春 辛洪政 |
| |
| 作者单位： | 湖南文理学院物电系,常德,415000;重庆大学数理学院,重庆,400044 |
| |
| 摘 要： | 用高精度IPC-205B型扫描隧道显微镜测得纳米碳酸钙的扫描隧道谱。该隧道谱表明，纳米碳酸钙具有半导体性质，与普通碳酸钙相比，其导电性能有了明显改善。由纳米碳酸钙隧道谱得出纳米碳酸钙的禁带宽度为0．4eV，比半导体硅的禁带宽度1.1eV的低。
|
| 关 键 词： | 扫描隧道显微镜 扫描隧道谱 隧道电流 禁带宽度 |
| 文章编号： | 1001-4012（2006）03-0129-02 |
| 收稿时间： | 2005-06-03 |
| 修稿时间： | 2005-06-03 |
CHARACTER RESEARCH OF NANOMETER CaCO3 BY HIGH RESOLVING CAPABILITY SCANNING TUNNELING MICROSCOPE |
| |
| PENG Guang-han,YANG Xue-heng,LI Xu,LIU Ji-chun,XIN Hong-zheng. CHARACTER RESEARCH OF NANOMETER CaCO3 BY HIGH RESOLVING CAPABILITY SCANNING TUNNELING MICROSCOPE[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2006, 42(3): 129-130,133 |
| |
| Authors: | PENG Guang-han YANG Xue-heng LI Xu LIU Ji-chun XIN Hong-zheng |
| |
| Affiliation: | 1.Department of Physics and Electronic Engineering, Hunan University of Arts and Science, Changde 415000, China;2.College of Science, Chongqing University, Chongqing 400044, China |
| |
| Abstract: | In this paper,the STS of nanometer CaCO_3 is obtained by STM.IPC-205B.The result shows that detection of some insulated nanophase materials by STM.IPC-205B,which we developed ourselves,of nanometer CaCO_3 by STM presents conductibility well if they are thin enough and located in a proper bias voltage field.In this way,the forbidden band breadth(0.4eV) of nanometer CaCO_3 can being known from the STS of nanometer CaCO_3.And we find that the forbidden band breadth of nanometer CaCO_3 is lower than that of semiconductor Si(1.1eV). |
| |
| Keywords: | STM STS Turmeling current Forbidden band breadth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
