| 溴吸附对碳纳米管导电性能的提高 |
| |
| 引用本文： | 唐国强,晋圣松,王红敏,边成香,徐学诚.溴吸附对碳纳米管导电性能的提高[J].化学学报,2007,65(23):2776-2780. |
| |
| 作者姓名： | 唐国强 晋圣松 王红敏 边成香 徐学诚 |
| |
| 作者单位： | 华东师范大学物理系纳米功能材料与器件应用研究中心,上海,200062 |
| |
| 基金项目： | 上海市纳米科技专项基金 |
| |
| 摘 要： | 通过溴蒸气的吸附, 提高多壁碳纳米管(MWNT)的本征导电性能，加溴多壁碳纳米管的电导率提高3倍. 通过拉曼光谱, 紫外可见光谱, 红外吸收光谱, 近红外吸收光谱和X光电子能谱等方法研究, 结果表明: 溴与多壁碳纳米管之间存在共轭作用, 使多壁碳纳米管表面的电子云分布发生了变化, 导致空穴载流子的产生, 增加了载流子浓度, 提高了多壁碳纳米管的导电性能.
|
| 关 键 词： | 多壁碳纳米管 导电率 吸附 载流子 |
| 收稿时间： | 2007-03-07 |
| 修稿时间： | 2007-07-16 |
Conductivity Enhancement in MWNT by Bromine Adsorption |
| |
| TANG,Guo-Qiang,JIN,Sheng-Song,WANG,Hong-Min,BIAN,Cheng-Xiang,XU,Xue-Cheng.Conductivity Enhancement in MWNT by Bromine Adsorption[J].Acta Chimica Sinica,2007,65(23):2776-2780. |
| |
| Authors: | TANG Guo-Qiang JIN Sheng-Song WANG Hong-Min BIAN Cheng-Xiang XU Xue-Cheng |
| |
| Institution: | (Center of Functional Nanomaterials and Devices, Department of Physics, East China Normal University, Shanghai 200062) |
| |
| Abstract: | Through adsorption of bromine vapor, the electrical conductivity of multi-walled carbon nanotubes (MWNT) can be enhanced by 3 times. Raman spectrum, UV-Vis spectra, IR, NIR and XPS spectra were used to characterize the material. The result indicates that there is a conjugative effect between MWNT and bromine, which induces the change of electron distribution on the MWNT surface. It increased the car- rier density and the electrical conductivity of MWNT became higher. |
| |
| Keywords: | MWNT electrical conductivity adsorption carrier |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《化学学报》浏览原始摘要信息 |
| 点击此处可从《化学学报》下载免费的PDF全文 |
|
