Studies on NiO-PVA Composite Films for Opto-Electronics and Optical Limiters
- 23 July 2018
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 30 (17), 1539-1542
- https://doi.org/10.1109/lpt.2018.2859042
Abstract
We report optical, excited-state lifetime, and nonlinear optical (NLO) properties of nickel oxide (NiO)/poly vinylalcohol (PVA) polymer free-standing films for opto-electronics and optical limiting applications. Optical absorption studies of NiO-loaded PVA films show that the exciton peaks are centered at 330 nm. Fluorescence studies reveal that the emission is due to exciton recombination and defects in NiO. Time-resolved fluorescence studies show that the recombination in PVA happens through NiO, where NiO has a faster decay time than the pure PVA. NLO measurements carried out using a 532 nm, 10-ns Nd: YAG laser, show that for a given energy, NiO/PVA shows good optical limiting, and the obtained NLO behavior is due to effective two-photon absorption.Keywords
Funding Information
- Council of Scientific and Industrial Research (03(1258)/12/EMR-II)
This publication has 22 references indexed in Scilit:
- Polymer-based nanocomposites for organic optoelectronic devices. A reviewSurface and Coatings Technology, 2011
- Generalized Kramers–Kronig relations in nonlinear optical- and THz-spectroscopyReports on Progress in Physics, 2009
- Cookie‐like Au/NiO Nanoparticles with Optical Gas‐Sensing PropertiesAdvanced Materials, 2007
- Dye-Sensitized Nanostructured p-Type Nickel Oxide Film as a Photocathode for a Solar CellThe Journal of Physical Chemistry B, 1999
- Porous Nickel Oxide/Nickel Films for Electrochemical CapacitorsJournal of the Electrochemical Society, 1996
- Localizedd-dexcitations in NiO(100) and CoO(100)Physical Review B, 1994
- Mesoscopic enhancement of optical nonlinearity in CuCl quantum dots: Giant-oscillator-strength effect on confined excitonsPhysical Review B, 1993
- Kramers-Kronig relations in optical data inversionPhysical Review B, 1991
- Correlated barrier hopping in NiO filmsPhysical Review B, 1991
- Electrical and Optical Properties of Narrow-Band MaterialsPhysical Review B, 1970