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Solid-State Emissive Organic Chromophores: Design, Strategy and Building Blocks

Abstract

Organic solid-state emissive materials have gained much attention in recent times due to their excellent optoelectronic properties leading to successful commercialization for organic electronics. But, achieving highly efficient solid-state emission (fluorescence) from organic chromophores is not an easy task because of the molecular aggregation which leads to quenching of emission. However, several strategies have been developed to generate efficient fluorescence emission in solid state by suppressing the undesired molecular aggregation. In this review, first an overview on various design and strategy of molecular building block for making solid-state emissive organic chromophores is presented. Among various strategies, the selection is focused on the use of either partially or fully twisted molecular building block or introduction of bulky substituent or making a donor-acceptor type system, which can effectively reduce the intermolecular π-π stacking interaction and produce fluorescence emission in solid state with high quantum yield. In this context, tuning and controlling of the fluorescence properties based on a single molecular building block is attractive to realize multicoloured emission and more advantageous for blending of different fluorescent materials in light emitting devices. In second part, we illustrate several examples of the colour tunable solid-state emissive organic materials that have been developed using single molecular building block.

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Publication details

The article was received on 02 Aug 2019, accepted on 08 Nov 2019 and first published on 26 Nov 2019


Article type: Review Article
DOI: 10.1039/C9TC04239C
J. Mater. Chem. C, 2019, Accepted Manuscript

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    Solid-State Emissive Organic Chromophores: Design, Strategy and Building Blocks

    M. K. Bera, P. Pal and S. Malik, J. Mater. Chem. C, 2019, Accepted Manuscript , DOI: 10.1039/C9TC04239C

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