Light-Induced ostwald ripening of organic nanodots to rods

dc.contributor.author	Mahesh, S
dc.contributor.author	Anesh Gopal
dc.contributor.author	Rajasekaran, T
dc.contributor.author	Ajayaghosh, A
dc.date.accessioned	2013-07-04T06:06:01Z
dc.date.available	2013-07-04T06:06:01Z
dc.date.issued	2012-05-02
dc.identifier.citation	Journal of the American Chemical Society 134(17):7227-7230;02 May 2012	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/530
dc.description.abstract	Ostwald ripening allows the synthesis of 1D nanorods of metal and semiconductor nanoparticles.However, this phenomenon is unsuccessful with organic π-systems due to their spontaneous self-assembly to elongated fibers or tapes. Here we demonstrate the uses of light as a versatile tool to control the ripening of amorphous organic nanodots (ca. 15 nm) of an azobenzene-derived molecular assembly to micrometersized supramolecular rods. A surface-confined dipole variation associated with a low-yield (13−14%) trans−cis isomerization of the azobenzene moiety and the consequent dipole−dipole interaction in a nonpolar solvent is believed to be the driving force for the ripening of the nanodots to rods	en_US
dc.language.iso	en	en_US
dc.publisher	American Chemical Society	en_US
dc.subject	Polymers	en_US
dc.subject	Azobenzene	en_US
dc.subject	CDTE Nanoparticles	en_US
dc.subject	Assemblies	en_US
dc.subject	Chirality	en_US
dc.subject	Oligo(P-phenyleneethynylene)s	en_US
dc.title	Light-Induced ostwald ripening of organic nanodots to rods	en_US
dc.type	Article	en_US
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