期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-017-02635-5
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资金
- National Key RD Program [2016YFA0300901, 2016YFA0300903, 2017YFA0205003]
- National Natural Science Foundation of China [11634001, 11525520, 11290162/A040106]
- Key Research Program of the Chinese Academy of Sciences [XDPB08-1, XDPB08-4]
- National Science Fund for Distinguished Young Scholars [21725302]
- Cheung Kong Young Scholar Program
- Praemium Academie of the Czech Academy of Sciences
- Ministry of Education of the Czech Republic [LM2015087]
- National Post-doctoral Program for Innovative Talents
- Weng Hongwu Original Research Foundation [WHW201502]
- Czech Academy of Sciences [MSM100101705]
- program Projects of Large Research, Development, and Innovations Infrastructures [CESNET LM2015042]
Scanning probe microscopy has been extensively applied to probe interfacial water in many interdisciplinary fields but the disturbance of the probes on the hydrogen-bonding structure of water has remained an intractable problem. Here, we report submolecular-resolution imaging of the water clusters on a NaCl(001) surface within the nearly noninvasive region by a qPlus-based noncontact atomic force microscopy. Comparison with theoretical simulations reveals that the key lies in probing the weak high-order electrostatic force between the quadrupole-like CO-terminated tip and the polar water molecules at large tip-water distances. This interaction allows the imaging and structural determination of the weakly bonded water clusters and even of their metastable states with negligible disturbance. This work may open an avenue for studying the intrinsic structure and dynamics of ice or water on surfaces, ion hydration, and biological water with atomic precision.
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