Optoelectronic exploration of novel non-symmetrical star-shaped discotic liquid crystals based on cyanopyridine

Vinayakumara, D.R.; Swamynathan, K.; Kumar, Sandeep; Adhikari, A.V.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7031

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DC Field	Value	Language
dc.contributor.author	Vinayakumara, D.R.	-
dc.contributor.author	Swamynathan, K.	-
dc.contributor.author	Kumar, Sandeep	-
dc.contributor.author	Adhikari, A.V.	-
dc.date.accessioned	2018-10-15T14:27:25Z	-
dc.date.available	2018-10-15T14:27:25Z	-
dc.date.issued	2018-10-21	-
dc.identifier.citation	New Journal of Chemistry, 2018, Vol. 42, p16999-17008	en_US
dc.identifier.issn	1144-0546	-
dc.identifier.uri	http://hdl.handle.net/2289/7031	-
dc.description	Restricted Access	en_US
dc.description.abstract	A novel family of non-symmetrical star-shaped cyanopyridine based discotic liquid crystals (CPBz6, CPBz8 and CPBz12) was designed and synthesized, as potential luminescent materials for optoelectronic applications. The length of one of the arms in the design was systematically varied to determine the structure–property relationships. Evidently, all of the compounds exhibited a highly prospective ordered columnar mesomorphism stabilized at ambient temperature with advantageous very low isotropization temperatures. Furthermore, their photophysical characteristics were investigated in depth, both in solution and in the liquid crystal (LC) state. The discotics were found to be intense blue emitters with reasonably good quantum efficiency. Their dynamic intramolecular charge-transfer (ICT) behaviour was confirmed by steady-state absorption and fluorescence spectral analysis in varied solvent polarity. Furthermore, their electrochemical properties were studied from the combination of an experimental method and the theoretical simulations, which elucidated the low laying frontier molecular orbitals (FMOs) with a narrow energy band gap of ∼2.0 eV. The resulted visually perceivable emission with favourable energy levels showcases their possible application in electronic display devices.	en_US
dc.language.iso	en	en_US
dc.publisher	Royal Society of Chemistry	en_US
dc.relation.uri	http://arxiv.org/abs/cond-mat/	en_US
dc.relation.uri	http://dx.doi.org/10.1039/C8NJ02582G	en_US
dc.rights	2018 The Royal Society of Chemistry and the Centre National dela Recherche Scientifique	en_US
dc.title	Optoelectronic exploration of novel non-symmetrical star-shaped discotic liquid crystals based on cyanopyridine	en_US
dc.type	Article	en_US
Appears in Collections:	Research Papers (SCM)

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