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Efficient red elect...
Efficient red electroluminescence from diketopyrrolopyrrole copolymerised with a polyfluorene
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- Fenwick, O. (author)
- University College London (UCL)
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- Fusco, Sandra, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Baig, T. N (author)
- University College London (UCL)
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- Di Stasio, F. (author)
- University College London (UCL)
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- Steckler, Timothy, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Henriksson, Patrik, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Flechon, C. (author)
- University College London (UCL)
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- Andersson, Mats, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Cacialli, F. (author)
- University College London (UCL)
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(creator_code:org_t)
- AIP Publishing, 2013
- 2013
- English.
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In: APL Materials. - : AIP Publishing. - 2166-532X. ; 1:3, s. Art. no. 032108-
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Abstract
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- We report the synthesis, characterization, and device incorporation of copolymers based on a common green-emitting polyfluorene but containing a small proportion of a low energy gap donor-acceptor-donor unit for red emission in photo- and electroluminescence. At just 1%-3% random incorporation, the low-gap unit is not present on all chains, yet we demonstrate that efficient charge and energy transfer can yield electroluminescent devices with 1% quantum efficiency and a color that can be tuned by adjusting the density of low-gap units to achieve primary red (National Television System Committee). The high current density tail off in the efficiency is reduced by replacing the hole-injection layer with a photochemically cross-linked electron-blocking layer.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Fenwick, O.
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Fusco, Sandra, 1 ...
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Baig, T. N
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Di Stasio, F.
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Steckler, Timoth ...
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Henriksson, Patr ...
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show more...
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Flechon, C.
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Andersson, Mats, ...
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Cacialli, F.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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APL Materials
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Chalmers University of Technology