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Olivier JH, Park J, Deria P, Rawson J, Bai Y, Kumbhar AS, Therien MJ. Unambiguous Diagnosis of Photoinduced Charge Carrier Signatures in a Stoichiometrically Controlled Semiconducting Polymer-Wrapped Carbon Nanotube Assembly. Angew Chem Int Ed Engl 2015; 54:8133-8. [PMID: 26014277 DOI: 10.1002/anie.201501364] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Indexed: 11/11/2022]
Abstract
Single-walled carbon nanotube (SWNT)-based nanohybrid compositions based on (6,5) chirality-enriched SWNTs ([(6,5) SWNTs]) and a chiral n-type polymer (S-PBN(b)-Ph4 PDI) that exploits a perylenediimide (PDI)-containing repeat unit are reported; S-PBN(b)-Ph4 PDI-[(6,5) SWNT] superstructures feature a PDI electron acceptor unit positioned at 3 nm intervals along the nanotube surface, thus controlling rigorously SWNT-electron acceptor stoichiometry and organization. Potentiometric studies and redox-titration experiments determine driving forces for photoinduced charge separation (CS) and thermal charge recombination (CR) reactions, as well as spectroscopic signatures of SWNT hole polaron and PDI radical anion (PDI(-.) ) states. Time-resolved pump-probe spectroscopic studies demonstrate that S-PBN(b)-Ph4 PDI-[(6,5) SWNT] electronic excitation generates PDI(-.) via a photoinduced CS reaction (τCS ≈0.4 ps, ΦCS ≈0.97). These experiments highlight the concomitant rise and decay of transient absorption spectroscopic signatures characteristic of the SWNT hole polaron and PDI(-.) states. Multiwavelength global analysis of these data provide two charge-recombination time constants (τCR ≈31.8 and 250 ps) that likely reflect CR dynamics involving both an intimately associated SWNT hole polaron and PDI(-.) charge-separated state, and a related charge-separated state involving PDI(-.) and a hole polaron site produced via hole migration along the SWNT backbone that occurs over this timescale.
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Affiliation(s)
- Jean-Hubert Olivier
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Jaehong Park
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/,Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104-6323 (USA)
| | - Pravas Deria
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Jeff Rawson
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Yusong Bai
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Amar S Kumbhar
- Chapel Hill Analytical & Nanofabrication Laboratory, University of North Carolina at Chapel Hill, 243 Chapman Hall, NC 27599 (USA)
| | - Michael J Therien
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/.
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Olivier J, Park J, Deria P, Rawson J, Bai Y, Kumbhar AS, Therien MJ. Unambiguous Diagnosis of Photoinduced Charge Carrier Signatures in a Stoichiometrically Controlled Semiconducting Polymer‐Wrapped Carbon Nanotube Assembly. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501364] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jean‐Hubert Olivier
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Jaehong Park
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104‐6323 (USA)
| | - Pravas Deria
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Jeff Rawson
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Yusong Bai
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
| | - Amar S. Kumbhar
- Chapel Hill Analytical & Nanofabrication Laboratory, University of North Carolina at Chapel Hill, 243 Chapman Hall, NC 27599 (USA)
| | - Michael J. Therien
- Department of Chemistry, Duke University, French Family Science Center, 124 Science Drive, Durham, NC 27708 (USA) http://www.chem.duke.edu/∼mt83/
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Lim SH, Jang HS, Ha JM, Kim TH, Kwasniewski P, Narayanan T, Jin KS, Choi SM. Highly Ordered and Highly Aligned Two-Dimensional Binary Superlattice of a SWNT/Cylindrical-Micellar System. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403458] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zou J, He X, Fan J, Raymond JE, Wooley KL. Supramolecularly knitted tethered oligopeptide/single-walled carbon nanotube organogels. Chemistry 2014; 20:8842-7. [PMID: 24961389 PMCID: PMC4139973 DOI: 10.1002/chem.201403027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Indexed: 12/19/2022]
Abstract
A facile polymerization of an allyl-functionalized N-carboxyanhydride (NCA) monomer is utilized to construct an A-B-A-type triblock structure containing β-sheet-rich oligomeric peptide segments tethered by a poly(ethylene oxide) chain, which are capable of dispersing and gelating single-walled carbon nanotubes (SWCNTs) noncovalently in organic solvents, resulting in significant enhancement of the mechanical properties of polypeptide-based organogels.
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Affiliation(s)
- Jiong Zou
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842 (USA)
| | - Xun He
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842 (USA)
| | - Jingwei Fan
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842 (USA)
| | - Jeffery E. Raymond
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842 (USA)
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842 (USA)
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