Hybrid carbon source for single-walled carbon nanotube synthesis by aerosol CVD method |
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| Affiliation: | 1. Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, Espoo, Finland;2. Skolkovo Institute of Science and Technology, 100 Novaya St., Skolkovo, Odintsovsky District, Moscow Region 143025, Russia;1. Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076, Aalto, Finland;2. Department of Quantum Engineering, School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan;3. University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090 Vienna, Austria;1. Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI 00076 Aalto, Finland;2. Skolkovo Institute of Science and Technology, 100 Novaya st., Skolkovo, Odintsovsky district, Moscow Region 143025, Russia;3. Canatu Ltd, Konalankuja 5, 00390 Helsinki, Finland;1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China;2. School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, PR China;3. Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen 518055, PR China;1. University of Cambridge, Department of Engineering, Cambridge CB2 1PZ, United Kingdom;2. Q-Flo Limited, BioCity, Pennyfoot Street, Nottingham NG1 1GF, United Kingdom |
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| Abstract: | The conductivity enhancement of single-walled carbon nanotube (SWCNT) films was achieved by increasing the bundle length in an aerosol CVD synthesis method with the help of two carbon sources. Carbon monoxide provides carbon at temperatures below 900 °C, while ethylene takes over at higher temperatures. The significant decrease in the sheet resistance at the 90% transmittance was observed from 3500 to 7500 Ω/sq. for pure CO system via 1909 and 1709 Ω/sq. for CO–H2 system to 291 and 358 Ω/sq. in the presence of C2H4 at 900 and 1100 °C, respectively. Doping the film with a gold chloride solution in acetonitrile allowed us to create the transparent conductive films with the sheet resistance as low as 73 Ω/sq. at a transmittance of 90%. |
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