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Issue 1, 2019
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Long-range exciton transport in brightly fluorescent furan/phenylene co-oligomer crystals

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Abstract

The design of light-emitting crystalline organic semiconductors for optoelectronic applications requires a thorough understanding of the singlet exciton transport process. In this study, we show that the singlet exciton diffusion length in a promising semiconductor crystal based on furan/phenylene co-oligomers is 24 nm. To achieve this, we employed the photoluminescence quenching technique using a specially synthesized quencher, which is a long furan/phenylene co-oligomer that was facilely implanted into the host crystal lattice. Extensive Monte-Carlo simulations, exciton–exciton annihilation experiments and numerical modelling fully supported our findings. We further demonstrated the high potential of the furan/phenylene co-oligomer crystals for light-emitting applications by fabricating solution-processed organic light emitting transistors.

Graphical abstract: Long-range exciton transport in brightly fluorescent furan/phenylene co-oligomer crystals

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Article information


Submitted
20 Aug 2018
Accepted
15 Oct 2018
First published
22 Oct 2018

J. Mater. Chem. C, 2019,7, 60-68
Article type
Paper

Long-range exciton transport in brightly fluorescent furan/phenylene co-oligomer crystals

A. A. Mannanov, M. S. Kazantsev, A. D. Kuimov, V. G. Konstantinov, D. I. Dominskiy, V. A. Trukhanov, D. S. Anisimov, N. V. Gultikov, V. V. Bruevich, I. P. Koskin, A. A. Sonina, T. V. Rybalova, I. K. Shundrina, E. A. Mostovich, D. Yu. Paraschuk and M. S. Pshenichnikov, J. Mater. Chem. C, 2019, 7, 60
DOI: 10.1039/C8TC04151B

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