Journal
NATURE MATERIALS
Volume 16, Issue 3, Pages 349-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/NMAT4823
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Funding
- Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering [DE-AC02-76SF00515]
- Deutsche Forschungsgemeinschaft, Priority Program 'Dispersion' [SPP 1807, Schr 597/27-1]
- DOE Office of Biological and Environmental Research
- National Institutes of Health, National Institute of General Medical Sciences [P41GM103393]
- Office of Science of the US Department of Energy [DE-AC02-05CH11231]
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Controlling inorganic structure and dimensionality through structure-directing agents is a versatile approach for new materials synthesis that has been used extensively for metal-organic frameworks and coordination polymers. However, the lack of `solid' inorganic cores requires charge transport through single-atom chains and/ or organic groups, limiting their electronic properties. Here, we report that strongly interacting diamondoid structure-directing agents guide the growth of hybrid metal-organic chalcogenide nanowires with solid inorganic cores having three-atom cross-sections, representing the smallest possible nanowires. The strong van der Waals attraction between diamondoids overcomes steric repulsion leading to a cis configuration at the active growth front, enabling face-on addition of precursors for nanowire elongation. These nanowires have band-like electronic properties, low effective carrier masses and three orders-of-magnitude conductivity modulation by hole doping. This discovery highlights a previously unexplored regime of structure-directing agents compared with traditional surfactant, block copolymer or metal-organic framework linkers.
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