美国哈佛大学Peng Yin、Wei Sun等研究人员合作实现三维DNA纳米沟槽内碳纳米管阵列的精确缩放。该研究于2020年5月22日发表于《科学》。

研究人员使用超分子组装方法（被称为空间受限的纳米管电子集成）实现了对半导体碳纳米管（CNT）间距的精确缩放。具体而言，通过使用基于DNA砖晶体的纳米沟槽通过DNA杂交排列DNA包裹的CNT，研究人员构建了平行CNT阵列，其均匀间距小至10.4纳米，角度偏差小于2°，组装产率大于95％。

据了解，对于超规模技术节点，需要将CNT精确制造成密集排列的均匀间隔阵列。

附：英文原文

Title: Precise pitch-scaling of carbon nanotube arrays within three-dimensional DNA nanotrenches

Author: Wei Sun, Jie Shen, Zhao Zhao, Noel Arellano, Charles Rettner, Jianshi Tang, Tianyang Cao, Zhiyu Zhou, Toan Ta, Jason K. Streit, Jeffrey A. Fagan, Thomas Schaus, Ming Zheng, Shu-Jen Han, William M. Shih, Hareem T. Maune, Peng Yin

Issue&Volume: 2020/05/22

Abstract: Precise fabrication of semiconducting carbon nanotubes (CNTs) into densely aligned evenly spaced arrays is required for ultrascaled technology nodes. We report the precise scaling of inter-CNT pitch using a supramolecular assembly method called spatially hindered integration of nanotube electronics. Specifically, by using DNA brick crystal-based nanotrenches to align DNA-wrapped CNTs through DNA hybridization, we constructed parallel CNT arrays with a uniform pitch as small as 10.4 nanometers, at an angular deviation 95%.

DOI: 10.1126/science.aaz7440

Source: https://science.sciencemag.org/content/368/6493/874