Tuning of chalcogenide nanoparticles fluorescence by Schiff bases
Selvaraj Naveenraj, Sambandam Anandan, Sivan Velmathi, Abdullah M Asiri, Muthupandian Ashokkumar
Journal of Photochemistry and Photobiology A -Chemistry | ELSEVIER SCIENCE SA | Published : 2013
The interaction between chalcogenide (CdS and CdSe) nanoparticles and Schiff bases in the presence and absence of an electron withdrawing (nitro) substituent in organic media has been studied using steady-state and time-resolved fluorescence measurements. The changes in the chalcogenide nanoparticles luminescence properties in the presence of electron or hole acceptors provide information on their electronic properties. For this purpose, platelet-like chalcogenide nanoparticles with average size of ∼5-12 nm were synthesized using a simple microwave technique and characterized using UV-vis spectroscopy, XRD and TEM. The fluorescence quenching studies suggest that Schiff bases quench the fluor..View full abstract
Awarded by DST, New Delhi
Awarded by DST
Author SA and MA thanks DST, New Delhi (INT/AUS/P-1/07 dated 19th Sep 2007) and DEST, Australia for the sanction of INDIA-AUSTRALIAN strategic research fund for their collaborative research. Author SA thank DST, New Delhi (SR/S1/PC-49/2009) for major research project. Authors SA and SV thank DST for sanctioning FIST (SR/FST/CSI-190/2008 dated 16th March 2009) and Nanomission (SR/NM/NS-27/2008, dated 25th Feb 2009) projects. Also the authors thank Prof. P. Ramamurthy, Director, National Centre for Ultra Fast Processes, University of Madras for time-resolved fluorescence measurements.