Title:	Enhanced optical nonlinearity of polyaniline - porphyrin nanocomposite
Authors:	Pandey, Rakesh K. Suchand Sandeep, C.S. Philip, Reji Lakshminarayanan, V.
Issue Date:	Apr-2009
Publisher:	American Chemical Society
Citation:	Journal of Physical Chemistry C, 2009, Vol.113, p8630
Abstract:	We observe that the porphyrin derivative 4,4′,4′′,4′′′-(porphine-5,10,15,20- tetrayl)tetrakis(benzoic acid) (PTBA) forms nanoparticles when mixed with the electrochemically formed conducting polymer polyaniline (PANI) in a DMF/water mixture. From atomic force microscopy (AFM) studies, the nanoparticles are found to be fairly uniform in size, with a dimension of around 80−100 nm and a z-height of 3−4 nm. The nonlinear optical absorption of this nanocomposite is measured at an excitation wavelength of 532 nm using the open aperture Z-scan experiment. The nanocomposite is found to show an enhanced optical limiting property compared to its constituent compounds PTBA and PANI.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/3804
ISSN:	E-ISSN: 1932-7455 P-ISSN: 1932-7447
Alternative Location:	http://dx.doi.org/
Copyright:	2009 American Chemical Society
Appears in Collections:	Research Papers (LAMP) Research Papers (SCM)

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