Direct Synthesis of Semiconducting Single-Walled Carbon Nanotubes Toward High-Performance Electronics

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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2023-07

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en

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Advanced Electronic Materials, Volume 9, issue 7

Abstract

The large-scale synthesis of high-purity semiconducting single-walled carbon nanotubes (s-SWCNTs) plays a crucial role in fabricating high-performance and multiapplication-scenario electronics. This work develops a straightforward, continuous, and scalable method to synthesize high-purity and individual s-SWCNTs with small-diameters distribution (≈1 nm). It is believed that the water and carbon dioxide resulting from the decomposition of isopropanol act as oxidizing agents and selectively etch metallic SWCNTs, hence enhancing the production of s-SWCNTs. The performance of individual-SWCNTs field effect transistors confirms the high abundance of s-SWCNTs, presenting a mean mobility of 376 cm2 V−1 s−1 and a high mobility of 2725 cm2 V−1 s−1 with an on-current to off-current (Ion/Ioff) ratio as high as 2.51 × 107. Moreover, thin-film transistors based on the as-synthesized SWCNTs exhibit excellent performance with a mean mobility of 9.3 cm2 V−1 s−1 and Ion/Ioff ratio of 1.3× 105, respectively, verifying the enrichment of s-SWCNTs. This work presents a simple and feasible route for the sustainable synthesis of high-quality s-SWCNTs for electronic devices.

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Funding Information: The research was supported by the Academy of Finland (316572, CNTstress), the Academy of Finland Flagship Programme (320167, PREIN), the Business Finland (ALDEL), the European Union's Horizon 2020 research and innovation program (965124, FEMTOCHIP) and GrapheneCore3 (881603). P.L. acknowledges the financial support from China Scholarship Council (No. 202006310007). The authors are grateful to Aalto University for their facilities and technical support at the OtaNano‐NanoMicroscopy Center (Aalto‐NMC) and the OtaNano‐Micronova Nanofabrication Center. The authors sincerely thank Dr. Inoue Hirotaka, Dr. Karakasidis Anastasios, and Dr. Borghei Maryam for proofreading. Publisher Copyright: © 2023 The Authors. Advanced Electronic Materials published by Wiley-VCH GmbH. | openaire: EC/H2020/965124/EU//FEMTOCHIP | openaire: EC/H2020/881603/EU//GrapheneCore3

Keywords

gas-phase synthesis, isopropanol, reproducibility, semiconducting single-walled carbon nanotubes, transistors

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Citation

Liu, P, Khan, A T, Ding, E X, Zhang, Q, Xu, Z, Bai, X, Wei, N, Tian, Y, Li, D, Jiang, H, Lipsanen, H, Sun, Z & Kauppinen, E I 2023, ' Direct Synthesis of Semiconducting Single-Walled Carbon Nanotubes Toward High-Performance Electronics ', Advanced Electronic Materials, vol. 9, no. 7, 2300196 . https://doi.org/10.1002/aelm.202300196