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Interaction between carbon nanotubes and substrate and its implication on field emission mechanism |
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| Authors: | Jihua Zhang Xi Wang Weidong Yu Qiong Li Chuanren Yang |
| Affiliation: | a Institute of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China b Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China c Department of Electronics Science and Technology, East China Normal University, Shanghai 200062, China |
| Abstract: | The interaction between carbon nanotubes (CNTs) and substrate plays an important role in the process of field emission. A double-barrier model is adopted to analyze the difference of field emission for various CNT films. Result shows that the width of interface barrier determines the emission performance. For CNTs on titanium, the best emission performance is attributed to the removal of interlayer barrier by the formation of conductive titanium carbide. These facts might shed new light on the field emission mechanism for CNTs. |
| Keywords: | Carbon nanotubes Chemical vapor deposition Field emission Electronic band structure |
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