Clean, fast and scalable transfer of ultrathin/patterned vertically-aligned carbon nanotube arrays
| Autor: | Linquan Ping, Han Wang, Yang Zhao, Hongtao Cong, Chang Liu, Mao-Lin Chen, Peng-Xiang Hou, Hui-Ming Cheng |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Pressing
Materials science Computer cooling business.industry Thermal resistance Thermal grease 02 engineering and technology General Chemistry Substrate (printing) Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention law Electrode Optoelectronics Microelectronics General Materials Science 0210 nano-technology business |
| Zdroj: | Carbon. 133:275-282 |
| ISSN: | 0008-6223 |
| DOI: | 10.1016/j.carbon.2018.03.032 |
| Popis: | The difficulty of transferring vertically-aligned carbon nanotube (VACNT) arrays onto specific substrates limits their use in many fields, for instance as thermal interface materials or electrical interconnects in microelectronics. Current transfer techniques are either limited by the type and shape of the target substrate, or their inability to transfer patterned and thin VACNT arrays. Here, we report a simple and clean press transfer method that does not use transfer media, and involves only pressing and lifting steps. This method enables not only the transfer of patterned and very thin VACNT arrays but also the tight adhesion of the arrays onto various flat or curved target substrates. Flexible and transparent electrodes were fabricated by transferring inter-digitated VACNT patterns onto a PET substrate. VACNT arrays with a thickness of 20 μm were transferred onto target substrates cleanly, showing a very low thermal resistance of ∼26 K mm2 W−1. The transferred clean, thin VACNT arrays show good heat dissipation as thermal interface material when integrated into a desktop computer CPU cooling system. |
| Databáze: | OpenAIRE |
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