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This content will become publicly available on December 26, 2017

Title: Hybrid metal–organic chalcogenide nanowires with electrically conductive inorganic core through diamondoid-directed assembly

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. Furthermore, this discovery highlights a previously unexplored regime of structure-directing agents compared with traditional surfactant, block copolymer or metal–organic framework linkers.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [1] ;  [3] ;  [3] ;  [5] ;  [5] ; ORCiD logo [5] ;  [6] ;  [1] ;  [3] ;  [3] ;  [1]
  1. Stanford Institute for Materials and Energy Sciences, Stanford, CA (United States); Dept. of Materials Science and Engineering, Stanford, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Stanford Institute for Materials and Energy Sciences, Stanford, CA (United States)
  4. Univ. Nacional Autonoma de Mexico, Coyoacan (Mexico)
  5. Justus-Liebig Univ., Giessen (Germany)
  6. Stanford Univ., Stanford, CA (United States)
Publication Date:
OSTI Identifier:
1331967
Report Number(s):
SLAC-PUB-16852
Journal ID: ISSN 1476-1122
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Nature Materials
Additional Journal Information:
Journal Volume: 16; Journal Issue: 3; Journal ID: ISSN 1476-1122
Publisher:
Nature Publishing Group
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; CHEM; MATSCI; SYNCHRAD