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Title: Tuning optical and three photon absorption properties in graphene oxide-polyvinyl alcohol free standing films

Abstract

We report the optical and nonlinear optical properties of graphene oxide (GO)-polyvinyl alcohol (PVA) free standing films. The composite polymer films were prepared in ex-situ method. The variation in optical absorption spectra and optical constants with the amount of GO loading was noteworthy from the optical absorption spectroscopic studies. Nonlinear optical studies done at 532 nm using 5 ns laser pulses show three photon absorption like behaviour. Both steady state and time resolved fluorescence studies reveal that the GO was functioning as a pathway for the decay of fluorescence from PVA. This is attributed to the energy level modifications of GO through hydroxyl groups with PVA. Raman spectroscopy also supports the interaction between GO and PVA ions through OH radicals.

Authors:
;  [1];  [1];  [2]
  1. Department of Physics, National Institute of Technology, Tiruchirappalli 620 015 (India)
  2. (Chile)
Publication Date:
OSTI Identifier:
22590594
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 2; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ABSORPTION SPECTRA; ENERGY LEVELS; FILMS; FLUORESCENCE; GRAPHENE; HYDROXIDES; HYDROXYL RADICALS; NONLINEAR PROBLEMS; OPTICAL PROPERTIES; OXIDES; PHOTONS; PULSES; PVA; RAMAN SPECTROSCOPY; TIME RESOLUTION

Citation Formats

Karthikeyan, B., E-mail: bkarthik@nitt.edu, Hariharan, S., Udayabhaskar, R., and Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, University of Concepcion, Concepcion 4070386. Tuning optical and three photon absorption properties in graphene oxide-polyvinyl alcohol free standing films. United States: N. p., 2016. Web. doi:10.1063/1.4955475.
Karthikeyan, B., E-mail: bkarthik@nitt.edu, Hariharan, S., Udayabhaskar, R., & Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, University of Concepcion, Concepcion 4070386. Tuning optical and three photon absorption properties in graphene oxide-polyvinyl alcohol free standing films. United States. doi:10.1063/1.4955475.
Karthikeyan, B., E-mail: bkarthik@nitt.edu, Hariharan, S., Udayabhaskar, R., and Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, University of Concepcion, Concepcion 4070386. Mon . "Tuning optical and three photon absorption properties in graphene oxide-polyvinyl alcohol free standing films". United States. doi:10.1063/1.4955475.
@article{osti_22590594,
title = {Tuning optical and three photon absorption properties in graphene oxide-polyvinyl alcohol free standing films},
author = {Karthikeyan, B., E-mail: bkarthik@nitt.edu and Hariharan, S. and Udayabhaskar, R. and Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, University of Concepcion, Concepcion 4070386},
abstractNote = {We report the optical and nonlinear optical properties of graphene oxide (GO)-polyvinyl alcohol (PVA) free standing films. The composite polymer films were prepared in ex-situ method. The variation in optical absorption spectra and optical constants with the amount of GO loading was noteworthy from the optical absorption spectroscopic studies. Nonlinear optical studies done at 532 nm using 5 ns laser pulses show three photon absorption like behaviour. Both steady state and time resolved fluorescence studies reveal that the GO was functioning as a pathway for the decay of fluorescence from PVA. This is attributed to the energy level modifications of GO through hydroxyl groups with PVA. Raman spectroscopy also supports the interaction between GO and PVA ions through OH radicals.},
doi = {10.1063/1.4955475},
journal = {Applied Physics Letters},
number = 2,
volume = 109,
place = {United States},
year = {Mon Jul 11 00:00:00 EDT 2016},
month = {Mon Jul 11 00:00:00 EDT 2016}
}