Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China.
ACS Nano. 2013 Aug 27;7(8):6831-9. doi: 10.1021/nn401998r. Epub 2013 Jul 24.
We developed a simple and scalable selective synthesis method of high-quality, highly concentrated semiconducting single-wall carbon nanotubes (s-SWCNTs) by in situ hydrogen etching. Samples containing ~93% s-SWCNTs were obtained in bulk. These s-SWCNTs with good structural integrity showed a high oxidation resistance temperature of ~800 °C. Thin-film transistors based on the s-SWCNTs demonstrated a high carrier mobility of 21.1 cm(2) V(-1) s(-1) at an on/off ratio of 1.1 × 10(4) and a high on/off ratio of 4.0 × 10(5) with a carrier mobility of 7.0 cm(2) V(-1) s(-1). A biosensor fabricated using the s-SWCNTs had a very low dopamine detection limit of 10(-18) mol/L at room temperature.
我们开发了一种简单且可扩展的选择性合成方法，用于原位氢刻蚀高质量、高浓度的半导体单壁碳纳米管（s-SWCNTs）。大量获得了含有约 93% s-SWCNTs 的样品。这些具有良好结构完整性的 s-SWCNTs 表现出约 800°C 的高抗氧化温度。基于 s-SWCNTs 的薄膜晶体管在开关比为 1.1×10(4)时表现出 21.1 cm(2) V(-1) s(-1)的高载流子迁移率，在开关比为 4.0×10(5)时具有 7.0 cm(2) V(-1) s(-1)的高载流子迁移率。使用 s-SWCNTs 制造的生物传感器在室温下具有非常低的多巴胺检测限，为 10(-18) mol/L。
