Study of Structural and Optical Properties of FeS2 Nanoparticles Prepared by Polyol Method

Authors G.S. Chandrawat1,2 , J. Tripathi1 , A.Sharma2, J. Singh1 , S. Tripathi3 , Jyotsna Chouhan4

1Department of Physics, ISLE, IPS Academy, Indore, Madhya Pradesh, India

2Department of Physics, Manipal University Jaipur, Jaipur, Rajasthan, India

3Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India

4RGPV, Bhopal, Madhya Pradesh, India

Issue Volume 12, Year 2020, Number 2
Dates Received 15 February 2020; revised manuscript received 15 April 2020; published online 25 April 2020
Citation G.S. Chandrawat, J. Tripathi, et al., J. Nano- Electron. Phys. 12 No 2, 02016 (2020)
PACS Number(s) 33.20.Rm, 33.20.Fb, 33.20.Ea
Keywords Nanoparticles (68) , Polyol Method, XRD (64) , FTIR (22) , Raman (37) .

FeS2 nanoparticles were prepared using a simple and cost-effective Polyol method with ethylene glycol and precursor thiourea as capping reagents. The crystalline structure of FeS2 nanoparticles were confirmed by X-ray diffraction. Dimensions of the unit cell and Pa-3 space group were determined by Rietveld refinement. The average crystallite size was found to be ~ 42.1 nm. The stoichiometry of these nanoparticles were also confirmed by, Raman and Fourier Transform Infrared Spectroscopy. Further, Raman spectroscopy revealed the chemical bonding and symmetry of molecules. FTIR spectroscopy exhibited the presence of functional groups of Fe=S, Fe–S and S–S in the samples. Advanced measurements and analysis towards the applicability of surfactant coated pyrite FeS2 nanoparticles for solar cell etc. applications are in progress.

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