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Volume 196, 2017
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Aggregation-induced enhanced green light emission from a simple donor–π–acceptor (D–π–A) material: a structure–property relationship study

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Abstract

Organic D–π–A materials, possessing intramolecular charge transfer, have attracted much scientific attention in recent years because of their potential applications in the development of organic light emitting devices (OLEDs). Two new compounds, A1 and A2, having a D–π–A skeleton have been synthesized and single crystals were grown by the solution growth technique. Both compounds were characterized for crystallographic, thermal and photophysical properties. Upon photo-excitation in the solid state, A1 showed very strong green light emission while A2 gave sky-blue emission with much lower intensity. A single crystal X-ray diffraction study revealed that in the crystal lattice of A1, both the donor and acceptor groups are involved in the intermolecular interactions. This results in the restricted intramolecular rotation (RIR) of the D and A moieties, and enables A1 to emit more intensely in the solid state due to aggregation-induced emission (AIE). Intense green light emission, along with a good crystalline nature indicates that A1 might be a potential candidate for opto-electronic devices.

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Publication details

The article was received on 26 Jun 2016, accepted on 12 Aug 2016, published on 12 Aug 2016 and first published online on 12 Aug 2016


Article type: Paper
DOI: 10.1039/C6FD00158K
Citation: Faraday Discuss., 2017,196, 131-142
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    Aggregation-induced enhanced green light emission from a simple donor–π–acceptor (D–π–A) material: a structure–property relationship study

    V. K. Gupta and R. A. Singh, Faraday Discuss., 2017, 196, 131
    DOI: 10.1039/C6FD00158K

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