期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 22, 期 37, 页码 13037-13040出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201603497
关键词
graphene; nanostructures; nc-AFM; STM; surface chemistry
资金
- U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-SC0010409]
- Center for Energy Efficient Electronics Science NSF [0939514]
- David and Lucile Packard Foundation for Science and Engineering
- NIH [SRR023679A, S10-RR027172]
- U.S. Department of Energy (DOE) [DE-SC0010409] Funding Source: U.S. Department of Energy (DOE)
Atomically precise engineering of defined segments within individual graphene nanoribbons (GNRs) represents a key enabling technology for the development of advanced functional device architectures. Here, the bottom-up synthesis of chevron GNRs decorated with reactive functional groups derived from 9-methyl-9H-carbazole is reported. Scanning tunneling and non-contact atomic force microscopy reveal that a thermal activation of GNRs induces the rearrangement of the electron-rich carbazole into an electron-deficient phenanthridine. The selective chemical edge-reconstruction of carbazole-substituted chevron GNRs represents a practical strategy for the controlled fabrication of spatially defined GNR heterostructures from a single molecular precursor.
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