Pattern formation in Langmuir–Blodgett films of tricycloquinazoline based discotic liquid crystal molecules

Karthik, C.; Manjuladevi, V.; Gupta, Raj Kumar; Kumar, Sandeep

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6010

Full metadata record

DC Field	Value	Language
dc.contributor.author	Karthik, C.	-
dc.contributor.author	Manjuladevi, V.	-
dc.contributor.author	Gupta, Raj Kumar	-
dc.contributor.author	Kumar, Sandeep	-
dc.date.accessioned	2014-11-07T06:43:24Z	-
dc.date.available	2014-11-07T06:43:24Z	-
dc.date.issued	2014-07-24	-
dc.identifier.citation	Journal of Molecular Structure, 2014, Vol.1070, p 52-57	en
dc.identifier.issn	0022-2860	-
dc.identifier.uri	http://hdl.handle.net/2289/6010	-
dc.description	Restricted Access.	en
dc.description.abstract	The assembly of molecules on the surface has drawn considerable attention because of its potential to tailor the physicochemical, electronic, and magnetic properties of materials. The structure of aggregates of molecules can be influenced by the molecular interactions and the external parameters like temperature, pressure and ion contents. We have found a stable Langmuir monolayer of amphiphilic tricycloquinazoline based discotic liquid crystal (AmTCQ) molecules at air–water (A–W) interface. The monolayer exhibits gas phase, low density liquid phase and high density liquid phase. The structural evolution in Langmuir–Blodgett (LB) films of the AmTCQ molecules as a function of target surface pressure is studied using an atomic force microscope. We found aggregation of the discotic molecules leading to nucleation sites at a lower surface pressure. With the increasing surface pressure, each nucleation site grows to form a stable triangular structure. The shape and size of the triangular structure remain stable till the target surface pressure for LB films deposition exceeds the equilibrium surface pressure of the AmTCQ molecules. The number of triangles in the film increases with increasing target surface pressure of LB deposition. The target surface pressure of LB deposition acts as a controlling parameter for obtaining desired number of triangular domains in the film.	en
dc.language.iso	en	en
dc.publisher	Elsevier B.V.	en
dc.relation.uri	http://adsabs.harvard.edu/abs/2014JMoSt1070...52K	en
dc.relation.uri	http://dx.doi.org/10.1016/j.molstruc.2014.04.036	en
dc.rights	2014 Elsevier B.V.	en
dc.title	Pattern formation in Langmuir–Blodgett films of tricycloquinazoline based discotic liquid crystal molecules	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

Files in This Item:

File	Description	Size	Format
2014_JoMSc_1070_52.pdf Restricted Access	Restricted Access	1.48 MB	Adobe PDF	View/Open Request a copy

Show simple item record