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.
| Original language | English |
|---|---|
| Pages (from-to) | 8630-8634 |
| Number of pages | 5 |
| Journal | Journal of Physical Chemistry C |
| Volume | 113 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 21-05-2009 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- General Energy
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
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