Cyclododecane-based high-intactness and clean transfer method for fabricating suspended two-dimensional materials
The high-intactness and ultraclean fabrication of suspended 2D materials has always been a challenge due to their atomically thin nature. Here, we present a universal polymer-free transfer approach for fabricating suspended 2D materials by using volatile micro-molecule cyclododecane as the transfer medium, thus ensuring the ultraclean and intact surface of suspended 2D materials. For the fabricated monolayer suspended graphene, the intactness reaches 99% for size below 10 µm and suspended size reaches 36 µm. Owing to the advantages of ultra-cleanness and large size, the thermal conductivity reaches 4914 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>W</mml:mi> <mml:mspace></mml:mspace> <mml:msup><mml:mrow><mml:mi>m</mml:mi></mml:mrow> <mml:mrow><mml:mo>-</mml:mo> <mml:mn>1</mml:mn></mml:mrow> </mml:msup> <mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow> <mml:mrow><mml:mo>-</mml:mo> <mml:mn>1</mml:mn></mml:mrow> </mml:msup> </mml:math> at 338 K. Moreover, this strategy can also realize efficient batch transfer of suspended graphene and is applicable for fabricating other 2D suspended materials such as MoS<sub>2</sub>. Our research not only establishes foundation for potential applications and investigations of intrinsic properties of large-area suspended 2D materials, but also accelerates the wide applications of suspended graphene grid in ultrahigh-resolution TEM characterization.
Authors
- Pengzhan Sun (ORCID: https://orcid.org/0000-0002-5838-0945)
- Wenlin Liu (ORCID: https://orcid.org/0000-0003-1152-6406)
- Li Lin (ORCID: https://orcid.org/0000-0002-3626-0643)
- Yeshu Zhu
- Hao He (ORCID: https://orcid.org/0000-0001-9673-1331)
- Kaicheng Jia (ORCID: https://orcid.org/0009-0003-7682-0937)
- Chenguo Hu (ORCID: https://orcid.org/0000-0002-3019-493X)
- Lianming Tong
- Hailin Peng (ORCID: https://orcid.org/0000-0003-1569-0238)
- Boyang Mao (ORCID: https://orcid.org/0000-0001-8295-0090)
- Yixuan Zhao
- Yanfeng Zhang (ORCID: https://orcid.org/0000-0003-1319-3270)
- Zhao Wang (ORCID: https://orcid.org/0000-0003-4108-3124)
- Qi Liang Lu (ORCID: https://orcid.org/0000-0002-2200-3849)
- Jiaxin Shao (ORCID: https://orcid.org/0000-0002-4927-1878)
- Jiawei Yang (ORCID: https://orcid.org/0000-0002-5498-4901)
- Zhongfan Liu (ORCID: https://orcid.org/0000-0001-5554-1902)
- Guorui Wang
- Yuqing Song (ORCID: https://orcid.org/0000-0003-3816-1582)
Institutions
- University of Science and Technology of China (CN)
- Chongqing University (CN)
- Peking University (CN)
- University of Macau (MO)
- China University of Petroleum, Beijing (CN)
- University of Cambridge (GB)
- Beijing University of Technology (CN)
- North West Agriculture and Forestry University (CN)
- Beijing Graphene Institute (CN)
- Beijing National Laboratory for Molecular Sciences (CN)
- Northwest A&F University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-08-13
- DOI
- https://doi.org/10.1038/s41467-024-51331-8
- Citations
- 12
- Primary Topic
- Graphene research and applications
- Type
- article
- Field-Weighted Citation Impact
- 1.41
Funders
- National Natural Science Foundation of China
- Peking University
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities