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Hinton T, Musiol S, Mora J, Roberts J, Bowles R, Amar A, Lawson A, George S, Belsey J, Rudin J, Kitson S, Nightingale A. P3396Urinary drug metabolite testing in heart failure: a novel method for identifying poor adherence. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Li X, Wolanin PJ, MacFarlane LR, Harniman RL, Qian J, Gould OEC, Dane TG, Rudin J, Cryan MJ, Schmaltz T, Frauenrath H, Winnik MA, Faul CFJ, Manners I. Uniform electroactive fibre-like micelle nanowires for organic electronics. Nat Commun 2017; 8:15909. [PMID: 28649998 PMCID: PMC5490183 DOI: 10.1038/ncomms15909] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 05/12/2017] [Indexed: 01/08/2023] Open
Abstract
Micelles formed by the self-assembly of block copolymers in selective solvents have attracted widespread attention and have uses in a wide variety of fields, whereas applications based on their electronic properties are virtually unexplored. Herein we describe studies of solution-processable, low-dispersity, electroactive fibre-like micelles of controlled length from π-conjugated diblock copolymers containing a crystalline regioregular poly(3-hexylthiophene) core and a solubilizing, amorphous regiosymmetric poly(3-hexylthiophene) or polystyrene corona. Tunnelling atomic force microscopy measurements demonstrate that the individual fibres exhibit appreciable conductivity. The fibres were subsequently incorporated as the active layer in field-effect transistors. The resulting charge carrier mobility strongly depends on both the degree of polymerization of the core-forming block and the fibre length, and is independent of corona composition. The use of uniform, colloidally stable electroactive fibre-like micelles based on common π-conjugated block copolymers highlights their significant potential to provide fundamental insight into charge carrier processes in devices, and to enable future electronic applications.
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Affiliation(s)
- Xiaoyu Li
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Piotr J. Wolanin
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
- Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - Liam R. MacFarlane
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Robert L. Harniman
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Jieshu Qian
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Oliver E. C. Gould
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
- Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - Thomas G. Dane
- European Synchrotron Radiation Facility, BP 220, Grenoble F-38043, France
| | - John Rudin
- Folium Optics Ltd, Unit 28, Cooper Road, Thornbury, Bristol BS35 3UP, UK
| | - Martin J. Cryan
- Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UK
| | - Thomas Schmaltz
- Laboratory of Macromolecular and Organic Materials, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL–STI–IMX–LMOM, Station 12, 1015 Lausanne, Switzerland
| | - Holger Frauenrath
- Laboratory of Macromolecular and Organic Materials, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL–STI–IMX–LMOM, Station 12, 1015 Lausanne, Switzerland
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - Charl F. J. Faul
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Ian Manners
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
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Kitson S, Geisow A, Rudin J, Taphouse T. Bright color reflective displays with interlayer reflectors. Opt Express 2011; 19:15404-14. [PMID: 21934904 DOI: 10.1364/oe.19.015404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A good solution to the reflective display of color has been a major challenge for the display industry, with very limited color gamuts demonstrated to date. Conventional side-by-side red, green and blue color filters waste two-thirds of incident light. The alternative of stacking cyan, magenta and yellow layers is also challenging--a 10% loss per layer compounds to nearly 50% overall. Here we demonstrate an architecture that interleaves absorbing-to-clear shutters with matched wavelength selective reflectors. This increases color gamut by reducing losses and more cleanly separating the color channels, and gives much wider choice of electro-optic colorants.
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Affiliation(s)
- Stephen Kitson
- Hewlett-Packard Labs, Long Down Avenue, Stoke Gifford, Bristol BS34 8QZ, UK.
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