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説明:

The engineering of atomically-precise nanopores in two-dimensional materials presents exciting opportunities for both fundamental science studies as well as applications in energy, DNA sequencing, and quantum information technologies. The exceptional chemical and thermal stability of hexagonal boron nitride (h-BN) suggest that exposed h-BN nanopores will retain their atomic structure even when subjected to extended periods of time in gas or liquid environments. We employ transmission electron microscopy to examine the time evolution of h- BN nanopores in vacuum and in air and find, even at room temperature, dramatic geometry changes due to atom motion and edge contamination adsorption, for timescales ranging from one hour to one week. The discovery of nanopore evolution contrasts with general expectations and has profound implications for nanopore applications of two-dimensional materials.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Atomically-precise nanopores, hexagonal boron nitride, transmission electron microscopy

刊行年月日: 2023-06-05

出版者: Springer Science and Business Media LLC

掲載誌:

• Communications Chemistry (ISSN: 23993669) vol. 6 issue. 1 108

研究助成金:

• DOE | SC | Basic Energy Sciences DE-AC02-05-CH11231 (KC1203)
• DOE | SC | Basic Energy Sciences DE-AC02-05-CH11231 (KCWF16)
• United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office W911NF-18-1-04320431
• United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office W911NF-18-2-0048

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1038/s42004-023-00899-1

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更新時刻: 2025-02-14 12:32:12 +0900

MDRでの公開時刻: 2025-02-14 12:32:12 +0900