Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
J Am Chem Soc. 2011 Aug 31;133(34):13216-9. doi: 10.1021/ja202234z. Epub 2011 Aug 8.
We present an innovative wet-chemistry-assisted nanotube-substitution reaction approach for the highly efficient synthesis of boron- and nitrogen-codoped single-walled carbon nanotubes (B(x)C(y)N(z)-SWNTs) in bulk quantities. The as-synthesized ternary system B(x)C(y)N(z)-SWNTs are of high purity and quality and have fairly homogeneous B and N dopant concentrations. Electrical transport measurements on SWNT-network thin-film transistors revealed that the B(x)C(y)N(z)-SWNTs were composed primarily of the semiconducting nanotubes, in contrast to the starting pristine C-SWNTs, which consisted of a heterogeneous mixture of both semiconducting and metallic types.
我们提出了一种创新的湿化学辅助的纳米管取代反应方法，用于高效合成大量的硼、氮共掺杂单壁碳纳米管（B(x)C(y)N(z)-SWNTs）。所合成的三元体系 B(x)C(y)N(z)-SWNTs 具有高纯度和高质量，并且具有相当均匀的 B 和 N 掺杂浓度。SWNT 网络薄膜晶体管的输运测量表明，B(x)C(y)N(z)-SWNTs 主要由半导体纳米管组成，与起始的原始 C-SWNTs 不同，后者由半导体和金属两种类型的不均匀混合物组成。
