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|Title:||Enhanced optical nonlinearity of polyaniline - porphyrin nanocomposite|
|Authors:||Pandey, Rakesh K.|
Suchand Sandeep, C.S.
|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.|
|Copyright:||2009 American Chemical Society|
|Appears in Collections:||Research Papers (LAMP)|
Research Papers (SCM)
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