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http://hdl.handle.net/2289/3804
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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File | Description | Size | Format | |
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2009_JPCC_V113_p8630-8634.pdf Restricted Access | Restricted Access | 378.41 kB | Adobe PDF | View/Open Request a copy |
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