Building two-dimensional materials one row at a time: Avoiding the nucleation barrier

@article{Chen2018BuildingTM,
  title={Building two-dimensional materials one row at a time: Avoiding the nucleation barrier},
  author={Jiajun Chen and Enbo Zhu and Juan Liu and Shuai Zhang and Zhaoyang Lin and Xiangfeng Duan and Hendrik Heinz and Yu Huang and James J. De Yoreo},
  journal={Science},
  year={2018},
  volume={362},
  pages={1135 - 1139}
}
No barriers to growing a row Classical nucleation theory predicts that two-dimensional islands on a surface must reach a critical size before they continue to grow; below that size, they dissolve. Chen et al. used phage display to select for short peptides that would bind to molybdenum disulfide (MoS2) (see the Perspective by Kahr and Ward). Hexagonal arrays of these peptides grew epitaxially as dimers but without a size barrier—the critical nuclei size was zero. Although two-dimensional arrays… 
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