Tellurium-assisted growth of large-scale atom-thin insulating amorphous carbon on insulating substrates.

IF 15.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2025-10-03 DOI:10.1038/s41467-025-63872-7

Ya Deng,Zihao Wang,Zhili Hu,Ang Li,Xin Zhou,Zhaolong Chen,Xingli Wang,Jiawei Liu,Kongyang Yi,Dundong Yuan,Xiaowei Wang,Peikun Zhang,Chao Zhu,Xiaoxu Zhao,Wei Ma,Yao Wu,Ruihuan Duan,Qundong Fu,Jiefu Yang,Xiuxian Zhou,Mengyao Cao,Chao Zhu,Beng Kang Tay,Jian Zhang,Mickael Lucien Perrin,Wu Zhou,Zhuhua Zhang,Kostya S Novoselov,Zheng Liu

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Abstract

Monolayer amorphous carbon (a-C), an atom-thin two-dimensional (2D) carbon amorphous material, has attracted significant attention due to its structural and transport properties. Here, we report a chemical vapor deposition (CVD) approach for directly synthesizing monolayer a-C films on insulating substrates, achieving high control over their size, thickness, and fabrication. The synthesized films exhibit a complete coverage over a 2-inch wafer, with high uniformity. Our theoretical analysis reveals the critical role of tellurium in promoting the growth of monolayer a-C on the substrate. Moreover, quantum tunneling measurements at liquid helium temperature were conducted on the a-C films, confirming the samples' homogeneity and their insulating behavior. This work provides a promising strategy for direct synthesis of atom-thin insulating amorphous materials and deepens our understanding of quantum phenomena and electronic properties in low-dimensional disordered materials.

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碲辅助在绝缘衬底上生长大规模原子薄绝缘非晶碳。

单层非晶碳（a-C）是一种原子薄的二维（2D）碳非晶材料，由于其结构和输运特性而受到人们的广泛关注。在这里，我们报告了一种化学气相沉积（CVD）方法直接在绝缘衬底上合成单层a- c薄膜，实现了对其尺寸，厚度和制造的高度控制。合成薄膜在2英寸晶圆片上完全覆盖，均匀性高。我们的理论分析揭示了碲在衬底上促进单层a-C生长的关键作用。此外，在液氦温度下对a-C薄膜进行了量子隧穿测量，证实了样品的均匀性和绝缘性能。这项工作为直接合成原子薄绝缘非晶材料提供了一种有希望的策略，并加深了我们对低维无序材料的量子现象和电子性质的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.