Journal
CHEMISTRY OF MATERIALS
Volume 29, Issue 3, Pages 1350-1356Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.6b05052
Keywords
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Funding
- National Natural Science Foundation of China [11504169, 61575094, 61136003]
- National Basic Research Program of China [2015CB932200]
- Synergetic Innovation Center for Organic Electronics and Information Displays
- King Abdullah University of Science and Technology (KAUST)
- U.S. National Science Foundation [CMMI-1619743]
- Shanghai Youth Talent Program
- Shanghai Institutions of Higher Learning
- MRI-R2 Grant from U.S. National Science Foundation [DMR-0959470]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1619743] Funding Source: National Science Foundation
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While theoretical simulations predict contradictory results about how the intercalation of foreign metal atoms affects the order of atomic layers in black phosphorus (BP), no direct experimental visualization work has yet clarified this ambiguity. By in situ electrochemical sodiation of BP inside a high-resolution transmission electron microscope and first-principles calculations, we found that sodium intercalation induces a relative glide of 1/2 < 010 > {001}, resulting in reordering of atomic stacks from AB to AC in BP. The observed local amorphization in our experiments is triggered by lattice constraints. We predict that intercalation of sodium or other metal atoms introduces n-type carriers in BP. This potentially opens a new field for two-dimensional electronics based on BP.
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