Journal article 588 views
Indolo-naphthyridine-6,13-dione Thiophene Building Block for Conjugated Polymer Electronics: Molecular Origin of Ultrahigh n-Type Mobility
,
Syeda A. Yousaf,
Raja S. Ashraf,
Warren Duffy,
Anne A. Y. Guilbert,
David M. E. Freeman,
Mohammed Al-Hashimi,
Jenny Nelson,
James R. Durrant,
Lin X. Chen,
Iain McCulloch,
Tobin J. Marks,
Tracey M. Clarke,
Thomas D. Anthopoulos,
Hugo Bronstein
Chemistry of Materials, Volume: 28, Issue: 22, Pages: 8366 - 8378
Swansea University Author:
Stoichko Dimitrov
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1021/acs.chemmater.6b03671
Abstract
Herein, we present the synthesis and characterization of four conjugated polymers containing a novel chromophore for organic electronics based on an indigoid structure. These polymers exhibit extremely small band gaps of ∼1.2 eV, impressive crystallinity, and extremely high n-type mobility exceeding...
| Published in: | Chemistry of Materials |
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| ISSN: | 0897-4756 1520-5002 |
| Published: |
2016
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa31793 |
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| Abstract: |
Herein, we present the synthesis and characterization of four conjugated polymers containing a novel chromophore for organic electronics based on an indigoid structure. These polymers exhibit extremely small band gaps of ∼1.2 eV, impressive crystallinity, and extremely high n-type mobility exceeding 3 cm2 V s–1. The n-type charge carrier mobility can be correlated with the remarkably high crystallinity along the polymer backbone having a correlation length in excess of 20 nm. Theoretical analysis reveals that the novel polymers have highly rigid nonplanar geometries demonstrating that backbone planarity is not a prerequisite for either narrow band gap materials or ultrahigh mobilities. Furthermore, the variation in backbone crystallinity is dependent on the choice of comonomer. OPV device efficiencies up to 4.1% and charge photogeneration up to 1000 nm are demonstrated, highlighting the potential of this novel chromophore class in high-performance organic electronics. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
22 |
| Start Page: |
8366 |
| End Page: |
8378 |