Wang Ying, Wang Jiacheng, Ding Chao, Zhang Hongjie, Du Ran, Zhang Shuchen, Qian Jinjie, Hu Yue, Huang Shaoming
Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325000, P. R. China.
Chem Commun (Camb). 2020 Nov 25;56(91):14259-14262. doi: 10.1039/d0cc06095j. Epub 2020 Oct 29.
Single-walled carbon nanotube (SWNT) arrays are the key to making integrated circuits smaller than 10 nanometers. Herein, a brand-new approach is proposed to efficiently prepare semiconducting (s-) SWNT arrays by implementing a simple phenylation to modulate the metallic SWNT bandgap through the radical reaction between SWNTs and benzoyl peroxide molecules. Electrical measurement indicates that the percentage of s-SWNTs in the functionalized arrays could be higher than 97.8% after phenylation, promoting its exceptional performance as a field-effect transistor with an on-off ratio of 11 300. Our work paves a new avenue for the design and synthesis of high-purity s-SWNT arrays, which are highly important for future applications in carbon-based nano-electronic devices.
单壁碳纳米管（SWNT）阵列是制造小于10纳米集成电路的关键。在此，我们提出了一种全新的方法，通过实施简单的苯基化反应，利用单壁碳纳米管与过氧化苯甲酰分子之间的自由基反应来调节金属单壁碳纳米管的带隙，从而高效制备半导体（s-）单壁碳纳米管阵列。电学测量表明，苯基化后功能化阵列中s-单壁碳纳米管的比例可高于97.8%，使其作为场效应晶体管具有11300的开/关比，展现出卓越性能。我们的工作为高纯度s-单壁碳纳米管阵列的设计与合成开辟了一条新途径，这对于未来在碳基纳米电子器件中的应用极为重要。
