Enhanced optical limiting of solubilized carbon nanotubesdecorated with Pt/Pd nanoparticles

Prabin Pradhan, V. Sai Muthukumar, Muralikrishna Molli, Shailesh Srivastava, S. Siva Sankara Sai, Somenath Mitra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We report here the nonlinear optical response of Solubilized Multiwalled Carbon Nanotubes(MWNTs) and these decorated with Platinum and Palladium Nanoparticles. Pristine MWNTs were functionalized with COOH group through microwave assisted synthesis route which rendered them soluble in water and other solvents too. Metal salts of Platinum and Palladium were further reduced to metal nanoparticles in presence of MWNT-COOH under microwave irradiation. These hybrid metal decorated carbon nanostructures were morphologically and functionally well characterized using SEM, EDAX, FTIR, UV-Visible etc., Using Z-scan technique, wecarried out nonlinear optical studies on aqueous dispersions (stable) of these metal decorated (Pt/Pd-MWNT-COOH) using a high power Nd:YAG Laser with 532 nm excitation with 10 nanosecond pulse width. These samples exhibited significant nonlinear absorption and scattering. The metal decorated MWNT-COOH (Pt-MWNT-COOH:2 Jcm-2; Pd-MWNT-COOH: 1.7Jcm -2)exhibited enhanced optical limiting which is more than plain MWNT-COOH samples and similar Metal-Graphene hybrid dispersions reported earlier in literature. These could be ideally suited for optical power limiting applications.

Original languageEnglish (US)
Title of host publicationProceedings of the International Conference on "Advanced Nanomaterials and Emerging Engineering Technologies", ICANMEET 2013
Pages193-196
Number of pages4
DOIs
StatePublished - 2013
Event2013 International Conference on Advanced Nanomaterials and Emerging Engineering Technologies, ICANMEET 2013 - Chennai, India
Duration: Jul 24 2013Jul 26 2013

Publication series

NameProceedings of the International Conference on "Advanced Nanomaterials and Emerging Engineering Technologies", ICANMEET 2013

Other

Other2013 International Conference on Advanced Nanomaterials and Emerging Engineering Technologies, ICANMEET 2013
Country/TerritoryIndia
CityChennai
Period7/24/137/26/13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Keywords

  • Multiwalled Carbon Nanotube
  • Nonlinear Scattering
  • Platinum and Palladium Nanoparticles
  • Z-scan
  • optical power limiters

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