Novel conducting nanocomposites: synthesis of triphenylene-covered gold nanoparticles and their insertion into a columnar matrix

Kumar, Sandeep; Pal, Santanu Kumar; Suresh Kumar, P.; Lakshminarayanan, V.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3332

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DC Field	Value	Language
dc.contributor.author	Kumar, Sandeep	-
dc.contributor.author	Pal, Santanu Kumar	-
dc.contributor.author	Suresh Kumar, P.	-
dc.contributor.author	Lakshminarayanan, V.	-
dc.date.accessioned	2007-09-27T06:43:05Z	-
dc.date.available	2007-09-27T06:43:05Z	-
dc.date.issued	2007-05	-
dc.identifier.citation	Soft Matter, 2007, Vol.3, p896 - 900	en
dc.identifier.issn	E-ISSN: 1744-6848	-
dc.identifier.issn	P-ISSN: 1744-683X	-
dc.identifier.uri	http://hdl.handle.net/2289/3332	-
dc.description	Restricted Access.	en
dc.description.abstract	Gold nanoparticles fully covered with triphenylene-based discotic liquid crystals (DLCs) were synthesized and dispersed in a columnar matrix. The thermophysical properties of these nanocomposites, studied using polarizing optical microscopy, differential scanning calorimetry and small angle X-ray diffraction studies (SAXS), confirm their insertion into the columnar matrix. The presence of the gold nanoparticles in the triphenylene-based DLCs does not disturb the nature of the mesophase other than altering the transition temperatures. We propose that the gold nanoparticles are distributed between the domain gaps of the DLCs in random disordered manner. Interestingly the DC conductivity measurements show an enhancement of the electrical conductivity by more than a million times upon doping of the discotic liquid crystals with the triphenylene-capped nanoparticles under ambient conditions.	en
dc.format.extent	652856 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Royal Society of Chemistry	en
dc.relation.uri	http://dx.doi.org/10.1039/b701380a	en
dc.rights	2007 Royal Society of Chemistry	en
dc.title	Novel conducting nanocomposites: synthesis of triphenylene-covered gold nanoparticles and their insertion into a columnar matrix	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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