Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons

doi:10.1002/chem.201705252

Title: Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons

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Diels–Alder copolymerization of tetraphenylcyclopentadienone, a precursor for cove graphene nanoribbons (cGNRs), with bifunctional porphyrins yields defined nanostructures comprised of a single cGNR-porphyrin-cGNR heterojunction within each ribbon. ¹³C NMR labeling and high-resolution mass spectrometry of solubilized polymer intermediates indicates that every porphyrin is covalently linked to two extended segments of cGNRs. UV/Vis absorption and fluorescence emission spectroscopy reveal a strong electronic correlation between the porphyrin and the adjacent cGNR segments that can be attenuated through reversible metalation of the porphyrin core. This versatile bottom-up synthetic strategy provides access to structurally well-defined, functional GNR-quantum dot-GNR heterostructures within a single graphene nanoribbon.

Authors:

Perkins, Wade ^[1] ;

Univ. of California, Berkeley, CA (United States). Dept. of Chemistry
Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Science Division; Univ. of California, Berkeley, CA (United States). Kavli Energy NanoSciences Inst.

Publication Date:: 2017-11-06

Grant/Contract Number:: AC02-05CH11231; SC0010409

Type:: Accepted Manuscript

Journal Name:: Chemistry - A European Journal

Additional Journal Information:: Journal Volume: 23; Journal Issue: 70; Journal ID: ISSN 0947-6539

Publisher:: ChemPubSoc Europe

Research Org:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

OSTI Identifier:: 1461124

Alternate Identifier(s):: OSTI ID: 1410700


                    Perkins, Wade, and Fischer, Felix R. Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons.  United States: N. p.,  
        Web.  doi:10.1002/chem.201705252.

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                    Perkins, Wade, & Fischer, Felix R. Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons.  United States.  doi:10.1002/chem.201705252.

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                    Perkins, Wade, and Fischer, Felix R. 2017.  
        "Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons".  United States.  
        doi:10.1002/chem.201705252.  https://www.osti.gov/servlets/purl/1461124.

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@article{osti_1461124,

  title        = {Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons},

  author       = {Perkins, Wade and Fischer, Felix R.},

  abstractNote = {Diels–Alder copolymerization of tetraphenylcyclopentadienone, a precursor for cove graphene nanoribbons (cGNRs), with bifunctional porphyrins yields defined nanostructures comprised of a single cGNR-porphyrin-cGNR heterojunction within each ribbon.13C NMR labeling and high-resolution mass spectrometry of solubilized polymer intermediates indicates that every porphyrin is covalently linked to two extended segments of cGNRs. UV/Vis absorption and fluorescence emission spectroscopy reveal a strong electronic correlation between the porphyrin and the adjacent cGNR segments that can be attenuated through reversible metalation of the porphyrin core. This versatile bottom-up synthetic strategy provides access to structurally well-defined, functional GNR-quantum dot-GNR heterostructures within a single graphene nanoribbon.},

  doi          = {10.1002/chem.201705252},

  journal      = {Chemistry - A European Journal},

  number       = 70,

  volume       = 23,

  place        = {United States},

  year         = {2017},

  month        = {11}

}

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