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Incorporation of De...
Incorporation of Designed Donor−Acceptor−Donor Segments in a Host Polymer for Strong Near-Infrared Emission from a Large-Area Light-Emitting Electrochemical Cell
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- Murto, Petri Henrik, 1984 (författare)
- Flinders University of South Australia,Chalmers tekniska högskola,Chalmers University of Technology
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- Tang, Shi (författare)
- Umeå universitet,Institutionen för fysik,LunaLEC AB, Umeå University, SE-90187 Umeå, Sweden,Umeå University
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- Larsen, Christian (författare)
- Umeå universitet,Institutionen för fysik,LunaLEC AB, Umeå University, SE-90187 Umeå, Sweden,Umeå University
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- Xu, Xiaofeng, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Sandström, Andreas (författare)
- LunaLEC AB
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- Pietarinen, Juuso (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Oulun Yliopisto,University of Oulu
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- Bagemihl, Benedikt (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Abdulahi, Birhan A. (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Addis Ababa University
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- Mammo, Wendimagegn (författare)
- Addis Ababa University,Chalmers tekniska högskola,Chalmers University of Technology
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- Andersson, Mats, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Flinders University of South Australia
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- Wang, Ergang, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Edman, Ludvig, 1967- (författare)
- Umeå universitet,Institutionen för fysik,LunaLEC AB, Umeå University, SE-90187 Umeå, Sweden,Umeå University
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(creator_code:org_t)
- 2018-04-04
- 2018
- Engelska.
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Ingår i: ACS Applied Energy Materials. - : American Chemical Society (ACS). - 2574-0962. ; 1:4, s. 1753-1761
- Relaterad länk:
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https://research.cha...
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https://doi.org/10.1...
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https://research.cha...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Cost-efficient thin-film devices that emit in the nearinfrared (NIR) range promise a wide range of important applications. Here, the synthesis and NIR application of a series of copolymers comprising poly[indacenodithieno[3,2- b ]thiophene-2,8-diyl] (PIDTT) as the host and different donor−acceptor−donor (DAD) segments as the guest are reported. We find that a key design criterion for efficient solid-state host-to-guest energy transfer is that the DAD conformation is compatible with the conformation of the host. Such host−guest copolymers are evaluated as the emitter in light-emitting electrochemical cells (LECs) and organic light-emitting diodes, and the best performance is invariably attained from the LEC devices because of the observed balanced electrochemical doping that alleviates issues with a noncentered emission zone. An LEC device comprising a host−guest copolymer with 4,4-bis(2-ethylhexyl)-4 H -silolo[3,2- b :4,5- b′ ]dithiophene as the donor and benzo[ c ][1,2,5]thiadiazole as the acceptor delivers an impressive near-infrared (NIR) performance in the form of a high radiance of 1458 μ W/cm2 at a peak wavelength of 725 nm when driven by a current density of 500 mA/cm2, a second-fast turn-on, and a good stress stability as manifested in a constant radiance output during 3 days of uninterrupted operation. The high-molecular-weight copolymer features excellent processability, and the potential for low-cost and scalable NIR applications is verified through a spray-coating fabrication of a >40 cm2 large-area device, which emits intense and uniform NIR light at a low drive voltage of 4.5 V.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- large-area device
- solution processing
- copolymer
- LEC
- near-infrared
- light-emitting electrochemical cell
- NIR
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
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Murto, Petri Hen ...
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Tang, Shi
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Larsen, Christia ...
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Xu, Xiaofeng, 19 ...
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Sandström, Andre ...
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Pietarinen, Juus ...
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visa fler...
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Bagemihl, Benedi ...
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Abdulahi, Birhan ...
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Mammo, Wendimage ...
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Andersson, Mats, ...
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Wang, Ergang, 19 ...
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Edman, Ludvig, 1 ...
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Polymerkemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Organisk kemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
- Artiklar i publikationen
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ACS Applied Ener ...
- Av lärosätet
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Chalmers tekniska högskola
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Umeå universitet