Volume 196, 2017

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

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.

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
26 जून 2016
Accepted
12 अगस्त 2016
First published
12 अगस्त 2016

Faraday Discuss., 2017,196, 131-142

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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