Short contacts between chains enhancing luminescence quantum yields and carrier mobilities in conjugated copolymers

Tudor H. Thomas, David J. Harkin, Alexander J. Gillett, Vincent Lemaur, Mark Nikolka, Aditya Sadhanala, Johannes M. Richter, John Armitage, Hu Chen, Iain McCulloch, S. Matthew Menke, Yoann Olivier, David Beljonne and Henning Sirringhaus ()
Additional contact information
Tudor H. Thomas: University of Cambridge
David J. Harkin: University of Cambridge
Alexander J. Gillett: University of Cambridge
Vincent Lemaur: Université de Mons
Mark Nikolka: University of Cambridge
Aditya Sadhanala: University of Cambridge
Johannes M. Richter: University of Cambridge
John Armitage: University of Cambridge
Hu Chen: KAUST Solar Center (KSC), KAUST
Iain McCulloch: KAUST Solar Center (KSC), KAUST
S. Matthew Menke: University of Cambridge
Yoann Olivier: Université de Mons
David Beljonne: Université de Mons
Henning Sirringhaus: University of Cambridge

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract Efficient conjugated polymer optoelectronic devices benefit from concomitantly high luminescence and high charge carrier mobility. This is difficult to achieve, as interchain interactions, which are needed to ensure efficient charge transport, tend also to reduce radiative recombination and lead to solid-state quenching effects. Many studies detail strategies for reducing these interactions to increase luminescence, or modifying chain packing motifs to improve percolation charge transport; however achieving these properties together has proved elusive. Here, we show that properly designed amorphous donor-alt-acceptor conjugated polymers can circumvent this problem; combining a tuneable energy gap, fast radiative recombination rates and luminescence quantum efficiencies >15% with high carrier mobilities exceeding 2.4 cm2/Vs. We use photoluminescence from exciton states pinned to close-crossing points to study the interplay between mobility and luminescence. These materials show promise towards realising advanced optoelectronic devices based on conjugated polymers, including electrically-driven polymer lasers.

Date: 2019
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-019-10277-y Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10277-y

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-10277-y

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().